ringivo

The Python client for the Ringivo API: send a fax, read one, list them, cancel one, fetch its pages, read your customers, manage their fax accounts, register the webhooks that tell you what happened, and verify what arrives. It also reads your customers' phone systems — the subscribers, their registrations and the call log — and places a call from one.

pip install ringivo

Python 3.10 or newer. Two runtime dependencies: httpx, and typing-extensions (4.10 or newer) on every supported interpreter — the generated types use TypedDict(closed=True), which no version of the standard library's typing carries.

There are two clients: Ringivo and AsyncRingivo. They take the same arguments and have the same methods; the async one awaits them. Pick the one that matches your program and do not mix them: each client's authentication refuses the other's transport rather than quietly sending your requests without a token, so an httpx.AsyncClient handed Ringivo's auth — or an httpx.Client handed AsyncRingivo's — raises NotImplementedError naming the reason.

Your base URL and your credential

There is no default host, and none is compiled in. Your provider gives you the API root, a client id, a client secret, and the id of the tenant your credential acts for; everything in this README uses https://api.yourprovider.example where yours goes.

with Ringivo(
    base_url="https://api.yourprovider.example",
    client_id="0198c4a1-1f2e-7a3b-9c40-5f6e7d8a9b01",
    client_secret="9tK2xr4mQ7vBnZ1sD5hL0pWfC8jY3aE6",
    tenant="0198c4a1-3d4e-7f50-a1b2-c3d4e5f6a7b8",
    scopes=["fax:read", "fax:write"],
) as client:
    ...

On the first call the client sends all of that in one request and gets back a bearer token that lasts about a quarter of an hour. It caches the token, mints a new one a minute before that one expires, and mints another if the platform ever refuses one — you never handle the token.

Ask for the scopes you need. The client refuses to construct without scopes=, and raises ValueError naming the fix: a request that asks for no scopes authorises nothing, so the platform refuses it — a 400 you would otherwise meet on your first call rather than on the line that caused it. Ask for more than your credential was granted and the extra is dropped rather than refused, as long as one scope survives, so a call can still fail later at the resource. The scopes this client's calls need are fax:read and fax:write for faxes, and fax-accounts:write for opening, changing or deleting a fax account — a reseller-tier scope, so a credential issued for one customer cannot hold it however it is asked for. The webhook calls need webhooks:read and webhooks:write, except on an endpoint scoped to one fax account: a fax:* token already reaches those. The phone-system calls need pbx-users:read for subscribers and their devices, pbx-call-records:read for the call log, and pbx-calls:write to place a call.

A client that provisions accounts and then reads them asks for both:

with Ringivo(
    base_url="https://api.yourprovider.example",
    client_id="0198c4a1-1f2e-7a3b-9c40-5f6e7d8a9b01",
    client_secret="9tK2xr4mQ7vBnZ1sD5hL0pWfC8jY3aE6",
    tenant="0198c4a1-3d4e-7f50-a1b2-c3d4e5f6a7b8",
    scopes=["fax:read", "fax-accounts:write"],
) as provisioning:
    account = provisioning.fax_accounts.create(
        customer="0198c4a1-4d5e-7f60-a172-3c4d5e6f7081",
        name="Front desk",
    )
    print(account.id, account.retention_days)

tenant= is required, and it is a required argument rather than a checked one: leave it out and Python refuses the constructor by name. There is no inference behind it — a mint that names no tenant is refused.

Pass customer= as well when your credential was issued for one customer inside that tenant. Both selectors NAME a grant your provider already wrote for your credential; they never widen one, and a selector no grant covers is refused with a 400 however good your credentials are.

Send a fax

from pathlib import Path

from ringivo import Ringivo

with Ringivo(
    base_url="https://api.yourprovider.example",
    client_id="0198c4a1-1f2e-7a3b-9c40-5f6e7d8a9b01",
    client_secret="9tK2xr4mQ7vBnZ1sD5hL0pWfC8jY3aE6",
    tenant="0198c4a1-3d4e-7f50-a1b2-c3d4e5f6a7b8",
    scopes=["fax:read", "fax:write"],
) as client:
    fax = client.faxes.send(
        fax_account="0198c4a1-3c4d-7e5f-9061-2b3c4d5e6f70",
        to="+13025556789",
        file=Path("chart-4471.pdf"),
        client_reference="chart-4471",
    )

    print(fax.id, fax.status)   # 0198c4a1-… queued

send() returns as soon as the fax is accepted. The render and the call happen afterwards, so status is queued here — read the fax again to see how it ended:

    finished = client.faxes.get(fax.id)
    print(finished.status, finished.pages_transferred)

Point at pages instead of uploading them with urls=[...] (up to five https links). Uploads and URLs cannot be mixed in one request.

Retrying a send safely

Every send carries an Idempotency-Key, and the client invents one when you do not pass it. If you intend to retry a send whose response you never saw — a timeout, a dropped connection — pass your own key and reuse it. The server replays the first fax instead of sending a second, and tells you it did:

    fax = client.faxes.send(
        fax_account=account_id,
        to="+13025556789",
        file=pdf_bytes,
        idempotency_key="chart-4471-attempt-1",
    )

    if fax.idempotent_replay:
        print("this was already sent")

Read, list, cancel, download

    fax = client.faxes.get(fax_id)

    page = client.faxes.list(direction="inbound", read=False, tags={"clinic": "north"})
    for fax in page:
        print(fax.id, fax.from_, fax.pages_total)

    if page.next_cursor:                       # newest first; follow the cursor
        page = client.faxes.list(after=page.next_cursor)

    client.faxes.cancel(fax_id)                # before the far end answers

    pdf = client.faxes.media(fax_id)           # the document's bytes
    Path("received.pdf").write_bytes(pdf)

media() mints a short-lived download link and follows it for you. Use media_link() instead if you want the URL and its expiry — but do not cache it or pass it on: anyone holding it reads that document.

Walking the whole collection

A page holds 25 rows by default, up to a ceiling of 100 with page_size=. To backfill every fax matching a filter, follow next_cursor — the server's own cursor — until it comes back None:

    faxes = []
    after = None
    while True:
        page = client.faxes.list(direction="inbound", after=after)
        faxes.extend(page)
        if page.next_cursor is None:            # the last page
            break
        after = page.next_cursor

after= walks forward; before= walks backward from a cursor instead — how you poll for rows that arrived since your last read.

Fax accounts

A fax account is a customer's container: the numbers routed to it, the faxes sent and received on it, and the settings that govern both. Opening, changing and deleting one is client.fax_accounts.

    account = client.fax_accounts.create(
        customer="0198c4a1-4d5e-7f60-a172-3c4d5e6f7081",
        name="Front desk",
        header_text="ACME VETERINARY",
        retention_days=365,
    )

    page = client.fax_accounts.list(customer="0198c4a1-4d5e-7f60-a172-3c4d5e6f7081")
    for account in page:
        print(account.id, account.name, account.status)

    for number in client.fax_accounts.numbers(account.id):
        print(number.e164, number.status)

    client.fax_accounts.update(account.id, status="suspended")   # receive only
    client.fax_accounts.delete(account.id)

An account belongs to one customer for its whole life. Every fax it holds carries the customer it was sent or received for, so there is no way to move it and no argument that would try.

Numbers are attached through the routing API, not here. A number points at one destination, and that rule belongs to the number: POST /v1/phone-numbers/{id}/routing with target_type: fax, through client.request(). numbers() reads back what is pointed at this account — all of them, walking the pages for you, because a half-list of a fax account's numbers looks exactly like a full one.

Retention: two rules, either of them off

Retention here DELETES; it never holds anything back.

Setting	What it does	Off
retention_days	Delete a fax's pages once they are older than this many days.	None — kept for ever
retention_pages	Keep only this many of the newest pages on the account.	None — no page limit

A new account gets your provider's defaults — a year, and no page limit, at the time of writing — because this client sends nothing for an argument you did not name.

    client.fax_accounts.update(account.id, retention_days=90, retention_pages=5000)
    client.fax_accounts.update(account.id, retention_days=None)     # keep for ever

Deleting a FAX is never blocked by retention: DELETE /v1/faxes/{id} removes its pages now.

Changing one setting changes one setting

update() is a sparse PATCH: it sends only the arguments you pass, so suspending an account leaves its retention rules exactly as they were. None is a value rather than an omission — it clears a nullable field.

    client.fax_accounts.update(account.id, default_from_e164=None)   # clears it
    client.fax_accounts.update(account.id)                           # ValueError

Deleting an account

delete() DESTROYS the stored pages of every fax on the account and cannot be undone — download anything worth keeping first. The account then leaves your listings and the people granted it lose access; the fax records themselves survive as the billing and audit evidence, and nothing bills after the delete.

It is refused while any number still routes to the account:

    try:
        client.fax_accounts.delete(account.id)
    except ApiError as refusal:
        if refusal.code == "fax_account_has_routed_numbers":
            print("move or release its numbers first")

Branch on code, not on the 409: a fax that cannot be cancelled is a 409 too, and it carries no code at all.

Who may read an account's faxes

Holding the account write permission lets somebody manage an account without being granted it. A GRANT is how you hand ONE account's faxes and pages to somebody who holds no such permission — a customer-facing staffer who should see this customer's faxes and no others. That is client.fax_account_users.

    grant = client.fax_account_users.create(
        fax_account=account.id,
        user="0198c4a1-7081-72a3-d4a5-6f7081920314",
    )

    for row in client.fax_account_users.list(fax_account=account.id):
        print(row.user_email, row.user_id)

    client.fax_account_users.delete(grant.id)     # withdraw it

A grant is a pair and a fact — this user, this account — and it holds no settings, so there is no update(): you withdraw one by deleting it and re-make it by creating another. Withdrawing takes nothing else with it, and somebody who reaches the account by permission rather than by a grant still reaches it.

Listing and reading grants needs fax:read; making and withdrawing them needs fax-accounts:write. The account you grant may be one you hold no grant on yourself — administering an account is permission-gated while reading its content is grant-gated, so somebody has to be able to add the first member.

Webhook endpoints

An endpoint is where the platform calls you, and what it calls you about. Registering one is client.webhook_endpoints; checking what arrives is webhooks.verify(), further down this page.

    endpoint = client.webhook_endpoints.create(
        url="https://hooks.acme-vet.example/faxes",
        scope_type="fax_account",
        scope_id=account.id,
        events=["fax.received", "fax.delivered"],
    )

    # whsec_… — the only time this is readable. Put it where your
    # receiver can find it; no call reads it back.
    secret = endpoint.secret

The signing secret is in that answer and nowhere else, ever. Store it before you do anything else. Every later read of the endpoint publishes secret=None, and that is the platform saying it keeps no readable copy, not this client failing to find one. Lose it and your only way back is rotate_secret().

scope_type is tenant, customer or fax_account, and scope_id names the one you mean. The three are a containment order, so a reseller-wide endpoint and a per-account one both hear about the same fax. Neither scope_type nor scope_id can be changed afterwards: the delivery record is the evidence of what that scope was told, so a different scope is a new endpoint.

events is the list you want — required, and it must name at least one. There is no spelling left that means "every event in scope": None and [] are each refused before the request is built, exactly as the platform refuses them. An event name the platform does not publish is a 422 — a typo would otherwise subscribe you to silence.

Registering needs webhooks:write, or fax:write for a fax_account-scoped endpoint only. Naming a customer or tenant scope with a fax:* token is a 422. Reading needs webhooks:read, and a fax:read token lists fax-account-scoped endpoints alone — the wider ones are absent from its page rather than refused, so an empty result under a fax:* token says nothing about whether a wider endpoint exists.

Adding an event to an endpoint you already have

update() is a sparse PATCH, like fax_accounts.update(): it sends only the arguments you pass. So the fix for "we registered for fax.received and the outbound events never arrived" is one call, and it leaves the URL and the switch exactly as they were:

    client.webhook_endpoints.update(
        endpoint.id,
        events=["fax.received", "fax.sending", "fax.delivered", "fax.failed"],
    )

The list is REPLACED, not merged — send every event you want, not just the new ones, and it must still name at least one: [] is refused. None is not sent as null here — passing it alone is the same as naming nothing.

Switching an endpoint off keeps it and its events, and stops the fan-out:

    client.webhook_endpoints.update(endpoint.id, active=False)   # deaf, not gone
    client.webhook_endpoints.delete(endpoint.id)                 # gone

delete() stops the fan-out at once and keeps the delivery record — "why did our integration stop hearing about faxes?" is answered by the deliveries of the endpoint somebody removed. Both need webhooks:write, or fax:write on a fax-account-scoped endpoint.

Rotating the secret

    rotated = client.webhook_endpoints.rotate_secret(endpoint.id)

    print(rotated.secret)                        # the new one, once
    print(rotated.secret_previous_expires_at)    # when the old one stops

A rotation does not replace the secret at once. It mints a new one and starts a 24-hour clock: the PREVIOUS secret goes on signing until secret_previous_expires_at, and during that window a delivery's header carries two v1 signatures, newest first. webhooks.verify() tries every one of them, so a rotation costs you no deliveries as long as your own copy is rolled before the deadline. Needs webhooks:write, or fax:write on a fax-account-scoped endpoint.

What we could not deliver

client.webhook_deliveries is evidence of failure, not a delivery history. A delivery that reaches your endpoint leaves NO ROW: a row appears when an attempt fails, moves along the retry ladder, and is removed the moment a later attempt succeeds.

    for delivery in client.webhook_deliveries.list(status="dead"):
        print(delivery.event_id, delivery.event_type, delivery.status_code)

So status="dead" is the query this collection exists for — what an outage cost you, and the only place that list exists. pending is everything still on the ladder. There is no delivered: the API answers 400 to it rather than handing back an empty page. An empty page for either real status is the good news.

Filter by endpoint= and event_type= too, and read one row with client.webhook_deliveries.get(delivery_id). The body that was POSTed is never published here — only payload_sha256, the digest of the exact bytes that were signed, so an integrator who kept what they received can prove it is what was sent. Reading needs webhooks:read; a delivery borrows its endpoint's reach, so a fax:read token sees the deliveries of fax-account-scoped endpoints alone.

Customers

client.customers reads the businesses you sell to: list them, or read one. It needs customers:read, and only a credential issued for your whole reseller account can hold that scope. A credential issued for one customer never carries it.

    page = client.customers.list(code="jpz3k")
    for customer in page:
        print(customer.id, customer.name, customer.pbx, customer.effective_region)

    customer = client.customers.get("0198c4a1-7a10-7c3e-9d21-4f5a6b7c8d9e")

A customer's id is what the rest of this client asks for. Pass it as customer= to client.pbx.users.list, client.pbx.devices.list and client.pbx.call_records.list, and to the fax-account calls:

    for user in client.pbx.users.list(customer=customer.id):
        print(user.user, user.display_name)

The list is newest first. It walks by cursor, like every other list here. code= finds the one customer whose code is exactly that value, and ids= reads several customers by id in one request — the ids list() and get() hand back. The two combine. A customer that is not on your account answers 404 on get(), the same as an id that names nothing.

When customer.pbx is False, the five phone-system fields — residential, call_limit, call_limit_external, transports and provisioning_state — are None. transports keeps the server's order, because the order is the DNS preference.

Call records, users, devices and click-to-dial

client.pbx is your customers' phone systems: pbx.users are the subscribers, pbx.devices are the registrations their phones have made, and pbx.call_records is the call log. Reading needs pbx-users:read — which covers subscribers AND their devices, because a registration is read as part of the subscriber it belongs to — or pbx-call-records:read for the call log, which is a separate scope because who called whom is a different sensitivity from a directory.

    for user in client.pbx.users.list(search="perkins"):
        print(user.user, user.display_name, user.presence)

    for device in client.pbx.devices.list(user=user.id, registered=True):
        print(device.aor, device.user_agent)

Every /v1/pbx/ read is narrowed to your customers' phone systems, and there is no unscoped form. A credential that reaches no customer with a phone system is refused with a 400 rather than handed an empty page, so "nobody has a phone system yet" never reads as "nobody has any users".

The two collections take a user= argument that means different things, and it is worth knowing which is which: users.list(user=...) is an EXACT extension — 101 does not match 1010 — while devices.list(user=...) is a users id. A device points back at its subscriber as device.pbx_user_id, named that way because JSON:API forbids a relationship sharing the name of the user attribute beside it.

The call log, one date range at a time

0.10.0 rebuilt this resource with no backward compatibility. The console owns the decision (one clean shape mattered more than a migration path), so 0.9.x's direction, vendor_type, from_user, from_uri, to_user, to_uri, dialed, by_user, term_user and tag are all gone rather than deprecated. There is no argument or attribute standing in for them: reach for the extended tier below for the raw material they used to carry.

    page = client.pbx.call_records.list(
        customer="0198c4a1-4d5e-7f60-a172-3c4d5e6f7081",
        started_after="2026-09-01T00:00:00Z",
        started_before="2026-09-30T23:59:59Z",
        type="inbound",
    )

    for call in page:
        print(call.started_at, call.from_number, call.to_number, call.duration_seconds)

The date range decides which months are read. The phone system keeps one table per month, so started_after and started_before choose which are opened at all. Pass neither and you get the current and previous month — not everything there is. A range wider than 13 months is refused with a 400, so a longer backfill is walked one window at a time.

Records the phone system marks hidden are left out of the list and served on a direct read — the same asymmetry its own portal has. Ask for them with include_hidden=True, or read one by id:

    call = client.pbx.call_records.get(call_id)      # served even if hidden

call.type is inbound, outbound or onNet, and call.disposition is answered or missed — only inbound can be either. The list filters on type but not on disposition: read call.disposition on each record instead. The phone system records ONE integer carrying both, and an integer this API has no word for arrives as its own digits in type rather than as null, so match on the values you know and let the rest fall through — the set is not closed.

call.has_recording says a recording is held, not that you can fetch it: the endpoint that hands the audio back is a later release.

A *_number field is E.164 or nothing. call.from_number, call.to_number and call.dialed_number carry +14075550101 or None — never an extension, a dial code or a star code; the console normalises and then checks, so this client has nothing left to reshape. from_number is the external party on an inbound call and the caller id sent on an outbound one; to_number is the party actually dialled; dialed_number is what was typed before the dial plan rewrote it. An extension is in call.from_extension, call.routed_by_extension or call.answering_extension instead.

Two tiers: standard, and extended behind a sparse fieldset

Every list() and get() response carries the standard tier — the fields above, plus tenant_id, domain, territory, release_code, release_text and hidden. The extended tier is the phone system's own raw material, served only when you name it in fields=:

    page = client.pbx.call_records.list(
        fields=["type", "startedAt", "origCallId", "terminatedTo"],
    )

fields= is a JSON:API sparse fieldset, so it narrows rather than adds: name every field you want, standard ones included, in the API's own camelCase spelling — not this client's snake_case attribute names. Leave it off and you get the standard tier alone; every extended attribute then reads back None.

Tier	Attributes
Standard (always served)	type, disposition, tenant_id, domain, territory, from_number, from_extension, from_name, to_number, dialed_number, routed_by_extension, answering_extension, started_at, answered_at, released_at, duration_seconds, talk_seconds, release_code, release_text, has_recording, hidden
Extended (needs fields=)	vendor_id, orig_call_id, term_call_id, by_action, terminated_to, codec, hostname, raw_from_uri, raw_from_user, raw_to_user, raw_request_user

call.customer_id, call.from_pbx_user_id and call.to_pbx_user_id come off the customer, fromPbxUser and toPbxUser relationships — read-only in every tier, and each None on a leg with no subscriber to point at, such as an outside caller on an inbound call.

Two kinds of timestamp, and why

A call record's started_at, answered_at and released_at are datetimes. A user's and a device's timestamps are str — served exactly as the phone system stores them, in a format the switch has never published. Parsing them here would be a guess, and a wrong guess is silent: an instant off by a time zone still looks like an instant. Read device.registered rather than comparing device.registration_expires_at yourself; the API derives that one for you.

Click-to-dial

    placed = client.pbx.users.call(user.id, destination="+13025556789")

    print(placed.id, placed.status)        # 0198c7f2-… requested

The phone system rings that subscriber's phone and connects it to destination, so the call goes out as them rather than as you. Needs pbx-calls:write.

The answer is a 202 and says exactly that much: the request was accepted and handed to the phone system. Nothing here says a phone rang or anybody answered, and status is requested — the only value this endpoint publishes.

The id you get back is not a call-record id, but it finds the call's records. It names the call on the phone system: it is the SIP call id the call is placed under. A call record's own id comes from the switch's call-detail row, so the two ids differ. Pass this id as call_id= to the call-record list:

    placed = client.pbx.users.call(user.id, destination="+13025556789")

    # Later, once the call has ended. With no range, only the current and
    # the previous month are searched.
    for record in client.pbx.call_records.list(call_id=placed.id):
        print(record.id, record.disposition, record.duration_seconds)

The call record appears once the call has ended.

The date range still applies. The call id is matched only inside the months your range covers, and with no started_after or started_before that is the current and the previous month. To find an older call, pass a range that covers when it was placed. So an empty page means the call has not ended yet, it was placed outside the range, or the id names no call. It is never an error.

One call writes two records: by default the list returns the visible dial-out record, and the hidden leg that rang the subscriber comes back only with include_hidden=True.

Do not retry this blindly. A call is undoable by nothing, and unlike faxes.send() it carries no idempotency key: a retry is a second phone call to a real person. If you never saw the answer, find out what happened first.

A 502 is the one refusal you can act on without checking: the phone system said no or could not be reached, nothing was dialled, and the status it answered with is in error.errors[0].meta["vendor_status"] — so a refusal and an outage can be told apart before you try again.

Name a caller_id to present a different number — E.164 with or without the +, or a ten-digit North American number — auto_answer=True to ask the subscriber's own phone to go off-hook instead of ringing, and device= to choose which of that subscriber's registrations the call is placed from. The device must be that subscriber's own: one that is not is refused with a 422 and nothing is dialled, whether it belongs to somebody else or does not exist, because the two must not be distinguishable from outside.

The answer echoes what was actually sent to the phone system, which is not always what you typed — this platform stores every caller id as E.164 without the plus, so caller_id="+14074366118" comes back as placed.caller_id == "14074366118".

The async client

AsyncRingivo is the same client for programs already running on asyncio. The constructor is identical, every method is awaited, and async with replaces with:

import asyncio
from pathlib import Path

from ringivo import AsyncRingivo


async def main():
    async with AsyncRingivo(
        base_url="https://api.yourprovider.example",
        client_id="0198c4a1-1f2e-7a3b-9c40-5f6e7d8a9b01",
        client_secret="9tK2xr4mQ7vBnZ1sD5hL0pWfC8jY3aE6",
        tenant="0198c4a1-3d4e-7f50-a1b2-c3d4e5f6a7b8",
        scopes=["fax:read", "fax:write"],
    ) as client:
        fax = await client.faxes.send(
            fax_account="0198c4a1-3c4d-7e5f-9061-2b3c4d5e6f70",
            to="+13025556789",
            file=Path("chart-4471.pdf"),
        )

        terminal = {"delivered", "partial", "cancelled", "failed"}
        while fax.status not in terminal:          # a rendered PDF needs one of these
            await asyncio.sleep(5)
            fax = await client.faxes.get(fax.id)

        if fax.status == "delivered":
            pdf = await client.faxes.media(fax.id)

asyncio.run(main())

Outside a context manager, release the connections with await client.aclose() — the async spelling of close().

Everything else reads the same. The exceptions are the same classes, the returned Fax, FaxPage and MediaLink are the same frozen dataclasses, and webhooks.verify() is the same function: it is pure computation with no network, so there is nothing to await.

Verify a webhook

Every delivery carries a Ringivo-Signature header. Check it before you trust the body — this needs no client and no network:

from ringivo import SignatureVerificationError, webhooks

@app.post("/hooks/fax")
def receive(request):
    try:
        webhooks.verify(
            request.body,                                  # the RAW bytes
            request.headers[webhooks.SIGNATURE_HEADER],
            secret="whsec_...",
        )
    except SignatureVerificationError:
        return Response(status=400)

    event = json.loads(request.body)
    ...
    return Response(status=202)

Two rules decide whether this works:

• Give it the raw body. Parsing the JSON and re-encoding it before verifying will fail, and correctly so — key order, escaping and number formatting are free choices no two encoders make alike. Reach for your framework's raw-body accessor.
• Answer any 2XX to accept. Deliveries are at-least-once: dedupe on event_id, because a retry carries the same one.

verify() returns None and raises SignatureVerificationError on any failure — a stale timestamp, the wrong secret, a malformed header. During a secret rotation the header carries two signatures and either secret verifies, so a rotation costs you no deliveries.

When something is refused

from ringivo import ApiError, AuthenticationError

try:
    client.faxes.send(fax_account=account_id, to="not-e164", file=pdf)
except ApiError as error:
    error.status_code        # 422
    error.code               # "validation_failed" — the vocabulary to branch on
    error.errors[0].detail   # "The to field format is invalid."
    error.errors[0].source   # {"parameter": "to"}

AuthenticationError (a subclass) means the credential itself was refused — the client had already replaced its token and retried once by then. Connection failures, timeouts and TLS errors are httpx's own exceptions and are deliberately not wrapped.

What is in the box

	Scope
Ringivo(base_url, client_id, client_secret, *, tenant, customer=None, scopes=None, timeout=30.0)	—	The client. A context manager, or call close(). tenant is required. scopes is spelled as a keyword but required too — an empty one raises.
AsyncRingivo(…same arguments…)	—	The asyncio twin. An async context manager, or await aclose(). Every method below is awaited.
client.faxes.send(*, fax_account, to, file=…|urls=…, …)	fax:write	Send one fax. Returns the accepted Fax.
client.faxes.get(fax_id, *, include=None)	fax:read	One fax, complete.
client.faxes.list(*, filters…, after=None, before=None, page_size=None)	fax:read	A FaxPage: iterable, with next_cursor. Default page size 25, ceiling 100.
client.faxes.cancel(fax_id)	fax:write	Withdraw a fax before it is answered.
client.faxes.media(fax_id, *, format="pdf")	fax:read	The document's bytes.
client.faxes.media_link(fax_id, *, format="pdf")	fax:read	The URL and its expiry, as a MediaLink.
client.fax_accounts.list(*, customer=None, status=None, after=None, before=None, page_size=None)	fax:read	A FaxAccountPage: iterable, with next_cursor.
client.fax_accounts.get(fax_account_id)	fax:read	One FaxAccount.
client.fax_accounts.numbers(fax_account_id)	fax:read	Every FaxAccountNumber routed to it, all pages walked.
client.fax_accounts.create(*, customer, name, header_text=…, default_from_e164=…, retention_days=…, retention_pages=…)	fax-accounts:write	Open an account for a customer.
client.fax_accounts.update(fax_account_id, *, name=…, header_text=…, default_from_e164=…, retention_days=…, retention_pages=…, status=…)	fax-accounts:write	A sparse PATCH: only what you pass.
client.fax_accounts.delete(fax_account_id)	fax-accounts:write	Delete the account and its pages. 409 while numbers route to it.
client.fax_account_users.list(*, fax_account=None, user=None, after=None, before=None, page_size=None)	fax:read	A FaxAccountUserPage of grants: iterable, with next_cursor. The two filters are "who can see this account?" and "what can this person see?".
client.fax_account_users.get(fax_account_user_id)	fax:read	One FaxAccountUser.
client.fax_account_users.create(*, fax_account, user)	fax-accounts:write	Grant this user access to this account's content. Both are required; neither can be changed afterwards.
client.fax_account_users.delete(fax_account_user_id)	fax-accounts:write	Withdraw the grant. The only way to undo one — there is no update route.
client.webhook_endpoints.list(*, scope_type=None, scope_id=None, active=None, after=None, before=None, page_size=None)	webhooks:read	A WebhookEndpointPage: iterable, with next_cursor. A fax:read token sees fax-account-scoped rows only.
client.webhook_endpoints.get(webhook_endpoint_id)	webhooks:read	One WebhookEndpoint. secret is always None here.
client.webhook_endpoints.create(*, url, scope_type, scope_id, events, active=…)	webhooks:write	Register an endpoint. events is required and must name at least one type. The only answer that carries the signing secret — store it. fax:write for a fax_account scope.
client.webhook_endpoints.update(webhook_endpoint_id, *, url=…, events=…, active=…)	webhooks:write	A sparse PATCH: only what you pass. The event list replaces the old one and must still name at least one type; None is never sent. The scope cannot change.
client.webhook_endpoints.delete(webhook_endpoint_id)	webhooks:write	Remove it. The fan-out stops; the deliveries stay.
client.webhook_endpoints.rotate_secret(webhook_endpoint_id)	webhooks:write	Mint a new secret and start the 24-hour grace window.
client.webhook_deliveries.list(*, endpoint=None, event_type=None, status=None, after=None, before=None, page_size=None)	webhooks:read	A WebhookDeliveryPage of what is still owed or was given up on. status="dead" is the one to ask after an outage.
client.webhook_deliveries.get(webhook_delivery_id)	webhooks:read	One WebhookDelivery.
client.customers.list(*, ids=None, code=None, after=None, before=None, page_size=None)	customers:read	A CustomerPage, newest first: iterable, with next_cursor. ids= reads several customers by id in one request — the ids list() and get() hand back — and combines with code=. A customer's id is what client.pbx.*.list(customer=...) takes.
client.customers.get(customer_id)	customers:read	One Customer. A customer that is not on your account is a 404, not a 403.
client.pbx.users.list(*, customer=None, user=None, search=None, after=None, before=None, page_size=None)	pbx-users:read	A PbxUserPage: iterable, with next_cursor. user is an EXACT extension; search is the directory search box.
client.pbx.users.get(pbx_user_id)	pbx-users:read	One PbxUser. A subscriber you cannot reach is a 404, not a 403.
client.pbx.users.call(pbx_user_id, *, destination, caller_id=None, auto_answer=False, device=None)	pbx-calls:write	Ring this subscriber and dial destination. Returns the accepted PbxCall — a 202, no idempotency key, and an id that names the call on the phone system rather than a call record. Pass that id to call_records.list(call_id=...) once the call has ended.
client.pbx.devices.list(*, customer=None, user=None, registered=None, after=None, before=None, page_size=None)	pbx-users:read	A PbxDevicePage. user here is a users ID, not an extension.
client.pbx.devices.get(pbx_device_id)	pbx-users:read	One PbxDevice — one registration, not one handset.
client.pbx.call_records.list(*, customer=None, started_after=None, started_before=None, type=None, fields=None, user=None, call_id=None, include_hidden=None, after=None, before=None, page_size=None)	pbx-call-records:read	A CallRecordPage, newest first. The date range decides which months are read; no range means the current and previous one. fields= asks for the extended tier — a sparse fieldset, so it narrows rather than adds. call_id finds the records of one users.call(), matched only inside the range's months.
client.pbx.call_records.get(call_record_id)	pbx-call-records:read	One CallRecord. A hidden record IS served here.
webhooks.verify(payload, header, secret, *, tolerance=300)	—	Raises unless the body is genuine and fresh.

CallRecord, CallRecordPage, Customer, CustomerPage, Fax, FaxAccount, FaxAccountNumber, FaxAccountPage, FaxAccountUser, FaxAccountUserPage, FaxDocument, FaxPage, MediaLink, PbxCall, PbxDevice, PbxDevicePage, PbxUser, PbxUserPage, WebhookDelivery, WebhookDeliveryPage, WebhookEndpoint and WebhookEndpointPage are frozen dataclasses, and each keeps the JSON it was built from in .raw — so a field the API adds after this release reaches you without a new SDK.

NOT_GIVEN is the sentinel the create() and update() calls on fax_accounts and webhook_endpoints default every optional argument to. You never need to pass it; it exists so that None can mean "clear this field" on fax_accounts, rather than "I said nothing".

Reaching an endpoint this client does not wrap

The table above is the fax, customer, webhook and phone-system surfaces. For anything else the API offers, use client.request() — the same escape hatch in both clients, awaited on the async one:

response = client.request("GET", "/v1/sip-trunks")
trunks = response.json()["data"]

It carries your credential, your timeout, your User-Agent and the same typed errors, and it hands back the httpx.Response untouched: past that line the JSON is the API's own, not one of the frozen objects above.

spec/openapi.yaml in this repository is the reference for what those endpoints take and answer. The same shapes are generated into ringivo._generated_types as TypedDicts, which your type checker can read; that module is private, machine-written, and rewritten wholesale whenever the spec changes.

Licence

MIT.