SpreadSpace Python SDK

Official Python client for the SpreadSpace API — document extraction and financial spreading for lending.

Install

pip install spreadspace

Requires Python 3.9+.

Authentication

from spreadspace import SpreadSpace

client = SpreadSpace(api_key="ss_test_...")   # or omit and set SPREADSPACE_API_KEY

The key prefix selects the environment:

• ss_test_... — routes to your sandbox tenant (seed data, safe to experiment).
• ss_live_... — routes to your live tenant (real data).

If api_key is omitted, the client reads SPREADSPACE_API_KEY from the environment. Never hard-code a live key; never commit any key.

Client options

client = SpreadSpace(
    api_key="ss_test_...",
    base_url="https://api.spreadspace.app",   # override for a private deployment
    api_version="2026-05-03",                # pins the SpreadSpace-Version header
    timeout=60.0,                            # seconds, per request
    max_retries=2,                           # 429 + 5xx + transport errors
)

API version pinning

Every request sends a dated SpreadSpace-Version header. The SDK pins a default version per release (decoupled from the SDK's own semver). Pin it explicitly to insulate your integration from server-side changes, and override per call when you need a newer surface:

client.borrowers.list(api_version="2026-06-01")   # one call on a newer version

Pagination (lazy, auto cursor)

List endpoints return a lazy iterator that walks cursors for you — it fetches the next page only as you consume it.

for borrower in client.borrowers.list():
    print(borrower["borrower_id"])

# Filters pass straight through and persist across pages:
for job in client.jobs.list(limit=50):
    print(job["job_id"])

Core lists yield typed Borrower, Loan, and JobStatus dictionaries. They remain ordinary dictionaries at runtime.

borrower = client.borrowers.create({"name": "Example borrower"})
loan = client.loans.create(borrower["borrower_id"], {"name": "Example loan", "requested_amount": "250000.00"})
current_loan = client.loans.get(loan["loan_id"])

Extraction export + wait

Exports run asynchronously. create returns a handle; wait polls to completion (raising ExportFailedError on failed, ExportTimeoutError on timeout). Terminal statuses are succeeded / failed / cancelled; cancelling — a cancel that landed mid-bundle — is NOT terminal, so wait polls through it. format is json, csv, or xlsx; xlsx is available for bank statements only.

borrower_id, loan_id and document_ids are required, as they are on the server.

export = client.exports.create(
    borrower_id="abc123",
    loan_id="def456",
    document_ids=["7a1d4e9c2b3f4a5d8e6c1b0f", "2a3b4c5d6e7f809112345678"],
    format="json",
)
result = export.wait(timeout=300)   # seconds
print(result.status, result.download_url)   # fresh download link on each retrieval
print(result.document_counts)               # {"requested": .., "exported": .., "skipped": ..}
print(result.bundle)                        # {"name": .., "size_bytes": .., "line_item_count": ..}

# Or ask for a fresh link by id (raises ExportNotReadyError until succeeded).
# The expiry comes off the same read, so it describes this link:
link = client.exports.download_link(result.export_id)
print(link.url, link.expires_at)

# List exports as ExtractionExport rows (items live under `exports`, not `data`):
for row in client.exports.list(status="running"):
    print(row.export_id, row.status)

# Cancel a still-running export (cancelling a finished one raises ConflictError;
# cancelling an already-cancelled one is an idempotent success):
export.cancel()
# ...or by id: client.exports.cancel(result.export_id)

Upload a document + wait for processing

job = client.documents.upload(
    "statement.pdf", loan_id="def456", borrower_id="abc123",
    operation_key="application-123-document-1",  # persist before the first attempt
)
print(job.id)  # persist the accepted job ID alongside the operation key
status = client.jobs.get(job.id)  # JobStatus dictionary
final = job.wait(timeout=600)   # seconds
print(final["status"])

The upload helper requests a presigned URL, PUTs the file bytes directly to storage with the matching Content-Type (part of the V4 signature), then returns a job handle you can wait on. Every upload belongs to a loan, so loan_id is required; borrower_id is optional.

Persist the operation key and returned job ID. Reusing the key produces stable, distinct presign and confirm idempotency keys. After accepted confirm, use client.jobs.get(job_id) to resume status checks. Presigned URLs expire, so a replayed presign response does not permit indefinite upload restarts. API version and retry overrides apply to both API stages and stay off the storage PUT.

Submit a document through intake

job = client.intake.submit(
    "statement.pdf",
    client_reference="application-123",  # groups repeat submissions onto one loan
    operation_key="application-123-document-1",  # persist before the first attempt
)
print(job.id, job.loan_id, job.borrower_id)  # persist all three
final = job.wait(timeout=600)  # seconds

# From bytes, file_name and content_type are required:
client.intake.submit(data, file_name="statement.pdf", content_type="application/pdf")

The intake helper creates a submission, PUTs the file bytes directly to storage with the matching Content-Type, then confirms the upload, with no borrower or loan modeled first: the API provisions both and returns their ids on the handle. file accepts the same sources as the upload helper. Requires an API key holding the intake:write scope; job.wait() and client.documents.status() poll GET /api/documents/{jobId}/status, which needs documents:read on the same key.

client_reference groups repeat submissions: the same reference resolves to the same provisioned loan and borrower instead of creating new ones, and omitting it creates a fresh pair every time. The operation key yields stable, distinct create and confirm idempotency keys. After confirm is accepted, resume status checks with client.documents.status(job_id).

Read an extracted document (typed)

client.extractions has one get_<family> / list_<family>s pair per document family (get_tax_return / list_tax_returns, get_bank_statement / list_bank_statements, ...), annotated with TypedDicts from spreadspace.extractions, plus get_report_data for any category in the shape of its family:

schedule = client.extractions.get_debt_schedule(borrower_id, document_id)
print(schedule["form_variant"], len(schedule["debt_schedule"]))

for row in client.extractions.list_debt_schedules(borrower_id)["schedules"]:
    print(row["extracted_document_id"], row["report_data"]["as_of_date"])

Error handling

All errors derive from SpreadSpaceError. Match on the typed subclass, never on the message string:

from spreadspace import (
    SpreadSpaceError,       # base
    NetworkError,           # transport failure, no HTTP response
    BadRequestError,        # 400
    AuthenticationError,    # 401
    PermissionDeniedError,  # 403
    NotFoundError,          # 404
    ConflictError,          # 409
    RateLimitError,         # 429
    InternalServerError,    # 5xx
)

try:
    client.borrowers.get("missing-id")
except RateLimitError as e:
    print("retry after", e.retry_after, "seconds")
except NotFoundError as e:
    print("not found")
except SpreadSpaceError as e:
    # Every error carries request_id — quote it in support tickets.
    print(e.message, e.status_code, e.request_id)

request_id comes from the X-Request-ID response header (falling back to the error body). Transient failures (429, 5xx, transport errors) are retried automatically up to max_retries with exponential backoff + full jitter, honoring Retry-After.

Money is exact

Every money key in report_data is a JSON string with exactly two decimals, typed str. Attribute snapshots and export payloads use the same two-decimal strings. The SDK preserves them unchanged; parse with Decimal when computing. Other JSON numbers arrive as int or Decimal, never float. Loan requested_amount, extraction query amounts and totals, and EBITDA write-in amounts are also strings. Create or update a loan with "requested_amount": "250000.00"; its allowed range is "0.00" through "999999999999.99". Invalid formats return 400 validation_failed.

from decimal import Decimal

amount = Decimal("128986.06")
statement = client.extractions.get_bank_statement(borrower_id, document_id)
transaction_amount = Decimal(statement["transactions"][0]["amount"])

Development

The generated OpenAPI core lives in src/spreadspace/_generated/ and is built in CI (scripts/generate.sh, Java-based — not run locally). It is gitignored and must never be hand-edited. The hand-written ergonomic layer (transport, helpers, typed errors) is the only code committed by hand.

pip install -e '.[dev]'
pytest

License

MIT