py-builder-signing-sdk
Python builder signing sdk
What it is and what it does
py-builder-signing-sdk is a Python client library for authenticating with Polymarket's builder API. It handles the generation of cryptographically signed HTTP headers required to authenticate builder requests, supporting two signing modes: local signing using API key credentials (key, secret, passphrase) or remote signing by delegating to an HTTP endpoint. The package wraps the signing logic so you pass an HTTP method, path, and body to a config object and receive ready-to-use signed headers.
The package depends on python-dotenv for environment configuration and requests for HTTP operations. It targets Python 3.9 and later and is distributed as a pure-Python wheel with low installation friction. Given its narrow focus on Polymarket integration and aging maintenance status, it's most useful for developers building applications that interact with Polymarket's builder API.
Use it for:
- Authenticate requests to Polymarket builder endpoints when building trading or market-making applications.
- Delegate signing to a remote service for key management separation in production environments.
- Generate signed headers for custom HTTP clients that need to call Polymarket builder APIs.
- Integrate Polymarket builder authentication into Python-based trading bots or market data pipelines.
Worth the install?
AI-flagged interpretation of the facts on this page — verify before relying
Generates cryptographically signed HTTP headers for Polymarket builder authentication, supporting both local key-based signing and remote signing via HTTP.
Yes, if you are building on Polymarket's builder API and need Python-based authentication. The low install friction and permissive license make it straightforward to add. However, the aging maintenance status (298 days since last release, minimal repository activity) means you should verify that the package still works with current Polymarket API versions and be prepared to maintain a fork if updates stall.
Install
py-builder-signing-sdk on PyPI
pip
pip install py-builder-signing-sdkuv
uv add py-builder-signing-sdkpoetry
poetry add py-builder-signing-sdkInstalling py-builder-signing-sdk
Before you install
Low install friction with only two runtime dependencies (python-dotenv, requests). Maintenance status is aging—last release was 298 days ago and the repository shows minimal activity (8 stars), so updates and bug fixes may be slow.
License in practice
MIT license (permissive) means you can use, modify, and distribute this package freely with minimal restrictions, as long as you include the license notice.
Quickstart
pip install py-builder-signing-sdk
from py_builder_signing_sdk import BuilderConfig, BuilderApiKeyCreds
creds = BuilderApiKeyCreds(key="key", secret="secret", passphrase="pass")
config = BuilderConfig(local_builder_creds=creds)
headers = config.generate_builder_headers("POST", "/order", '{"data": "example"}')
Requires Python 3.9 or later.
Verify before relying
- Whether the package is actively maintained or if the aging status signals potential abandonment.
- What cryptographic algorithm(s) are used for signing and whether they meet current security standards.
- Whether remote signing endpoint authentication (token parameter) supports standard schemes or custom protocols.
Package facts
| License | not declared (permissive) |
| Python support | supports the current Python release (>=3.9) |
| Install friction | low — pure-Python wheel |
| Runtime dependencies | 2 — python-dotenv, requests |
| Maintenance | aging — 298 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 775,901/month — #5,091 on PyPI (30-day window, as of 2026-08-14) |
| Known vulnerabilities | none known (OSV.dev, checked 2026-08-14) |
Evidence: py_builder_signing_sdk-0.0.2-py3-none-any.whl
Tags
More Cryptography packages
Certifi provides Mozilla's curated collection…
copyleft · top 100 on PyPI
cryptographycryptography provides cryptographic recipes and…
permissive · top 100 on PyPI
rsaPure-Python RSA encryption, decryption,…
permissive · top 1,000 on PyPI
pyOpenSSLpyOpenSSL wraps OpenSSL's SSL/TLS functionality…
permissive · top 1,000 on PyPI
azure-identityProvides Microsoft Entra ID token-based…
unclear · top 1,000 on PyPI
PyNaClPyNaCl provides Python bindings to libsodium…
permissive · top 1,000 on PyPI
py-builder-relayer-clientA Python client library for submitting…
permissive · top 15,000 on PyPI
py-order-utilsGenerates and cryptographically signs orders…
permissive · top 5,000 on PyPI
py-clob-client-v2Python client library for placing and managing…
permissive · top 15,000 on PyPI
aws-request-signerSigns HTTP requests using AWS Signature V4,…
permissive · top 15,000 on PyPI
polymarket-clientOfficial Python SDK for Polymarket that…
permissive · top 15,000 on PyPI
veracode-api-signingSigns HTTP requests destined for the Veracode…
permissive · top 15,000 on PyPI
aws-sdk-signersProvides standalone SigV4 request signing for…
permissive · top 15,000 on PyPI
truelayer-signingProduces and verifies cryptographic signatures…
permissive · top 15,000 on PyPI
wallet-py3kGenerates Apple Wallet (.pkpass) files from…
unclear · top 15,000 on PyPI
py-vapidGenerates VAPID (Voluntary Application Server…
copyleft · top 5,000 on PyPI