mailsocket — Python SDK

The official Python client for the mailsocket v1 REST API. Ephemeral email inboxes, message retrieval, and — the whole point — wait for the OTP in one line.

from mailsocket import Client

client = Client("ms_live_...")            # your API key from the dashboard
inbox = client.create_inbox(label="signup")  # -> {"id": "inbox_...", "address": "..."}

# hand inbox["address"] to whatever form sends the code, then:
result = client.wait_for_otp(inbox["id"])     # blocks up to 60s
print(result.otp)         # "123456"
print(result.confidence)  # 0.95

No polling loop. No regex over the email body. wait_for_otp long-polls the server (which already knows how to extract the code) and hands back a deterministic result with a confidence score.

Install

pip install mailsocket

Zero runtime dependencies — pure standard library (urllib). Python 3.9+.

API

client = Client(api_key, base_url="https://dash.mailsocket.app/api/v1")

The moat

result = client.wait_for_otp(inbox_id, *, timeout=60, min_confidence=0.0, since=0) -> WaitResult
result = client.wait_for_link(inbox_id, *, timeout=60, since=0)                       -> WaitResult
result = client.wait(inbox_id, *, timeout=60, min_confidence=0.0, since=0)            -> WaitResult  # otp OR link

WaitResult exposes .otp, .confidence, .magic_link (and .link as an alias), plus the full .message dict. str(result) is the OTP (or the link).

Semantics:

• Each HTTP call blocks server-side for up to 25s (timeout is clamped to [1, 25]); the SDK re-calls until the overall timeout (seconds, default 60) elapses.
• 200 → the matching message. 204 → nothing yet, re-call immediately.
• 429 → honours Retry-After and retries within the deadline. 404 → raises.
• On overall deadline → WaitTimeout.

Errors

MailsocketError (base) with subclasses:

• AuthError — HTTP 401 (bad/missing key).
• NotFound — HTTP 404.
• RateLimited — HTTP 429, carries .subcode (rate_limited, too_many_wait_requests, wait_capacity) and .retry_after.
• WaitTimeout — no matching message within the overall deadline.

Develop

cd sdks/python
python -m pytest -q

Tests are fully offline — they monkeypatch urllib.request.urlopen with a scripted responder, so nothing touches the live API.