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formable-sdk is the official Python SDK for the Formable API (v1). It covers templates, signature requests, redlining, and billing.
  • Sync (Formable) and async (AsyncFormable) clients
  • Fully typed requests and responses (py.typed)
  • Python 3.9+
Source code is on GitHub.

Installation

Initialize the client

Pass your API key from Settings. It’s sent as a bearer token on every request.

Templates

Upload a document to create a reusable template, then mint edit URLs to place fields in the embedded editor. See the embedded templates walkthrough.

Signature requests

Send a template for signing by email, or embed the signing experience in your product. See the embedded signing walkthrough.
get_signed_envelope raises a 409 until the document is complete. Wait for the document_completed webhook, or poll get until status is Completed.

Redline requests

Run turn-based contract negotiation before signing. See the redlining walkthrough.

Billing and health

Async client

Every method is also available on AsyncFormable with the same signatures.

Error handling

All non-2xx responses raise a FormableError with the server’s error message, HTTP status, and parsed response body.

Configuration

Next steps

Quickstart

Go from a plain document to a signed PDF in 4 calls.

API reference

Every endpoint the SDK wraps, with a live playground.