aws-sdk-signers
Standalone HTTP Request Signers for Amazon Web Services
Decision gist · record as of 2026-08-14
Yes, if you need standalone SigV4 signing and can tolerate Pre-Alpha stability. The low install friction, active maintenance, permissive license, and zero runtime dependencies make it a practical choice for projects that want signing without a full SDK dependency. Pin to a minor version and review changelogs before upgrading.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.12 or later.
- Low install friction with no runtime dependencies.
- Active maintenance as of 2026-08-13, but in Pre-Alpha development phase with acknowledged potential for breaking changes between minor versions—pinning to a specific minor version is recommended.
License · maintenance · safety
Apache License 2.0 (permissive) — Licensed under Apache License 2.0 (permissive), allowing commercial and private use with minimal restrictions.
last release 2026-05-05 (101 days) · last repo commit 2026-08-13 · 83 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 399,957 downloads/mo, #6,943 on PyPI
Alternatives
Verify before relying
pip install aws-sdk-signers
from aws_sdk_signers import SigV4Signer, SigV4SigningProperties, AWSCredentialIdentity, AWSRequest
signer = SigV4Signer()
props = SigV4SigningProperties(service='s3', region='us-west-2')
creds = AWSCredentialIdentity(access_key='...', secret_key='...')
request = AWSRequest(method='GET', url='https://...')
signed_request = signer.sign(request, props, creds)- Whether AsyncSigV4Signer is production-ready or also carries Pre-Alpha stability caveats.
- Whether payload_signing_enabled and content_checksum_enabled defaults (True) are appropriate for all use cases.
- Scope and frequency of breaking changes expected during Pre-Alpha phase.
What it is and what it does
AWS SDK Signers for Python is a standalone library that handles SigV4 request signing—the AWS authentication mechanism for HTTP requests. Rather than embedding signing logic in a full SDK, it provides two high-level signers (SigV4Signer for synchronous code and AsyncSigV4Signer for async) that work with any HTTP library: Requests, urllib3, AIOHTTP, Curl, or Postman. You supply a request object, AWS credentials, and signing properties (service name, region, optional date and flags for payload signing and URI encoding), and the signer applies the cryptographic signature and required headers.
The package is currently in Pre-Alpha, meaning the API and behavior may change between minor versions as the maintainers collect feedback. It has no external runtime dependencies, making it lightweight to add to existing projects. It requires Python 3.12 or later and is actively maintained, with the last commit on 2026-08-13.
Use it for
- Sign requests to AWS services when using a non-SDK HTTP client or custom request pipeline.
- Integrate AWS authentication into tools like Postman or Curl without pulling in a full SDK.
- Build async applications that need to sign requests to AWS without blocking I/O.
- Create custom AWS API clients that need fine-grained control over request signing and headers.
- Test or debug AWS API calls by manually constructing and signing requests.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need standalone SigV4 signing and can tolerate Pre-Alpha stability.
The low install friction, active maintenance, permissive license, and zero runtime dependencies make it a practical choice for projects that want signing without a full SDK dependency. Pin to a minor version and review changelogs before upgrading.
Install
aws-sdk-signers on PyPI
Before you install
Low install friction with no runtime dependencies. Active maintenance as of 2026-08-13, but in Pre-Alpha development phase with acknowledged potential for breaking changes between minor versions—pinning to a specific minor version is recommended.
Requires Python 3.12 or later.
License in practice
Licensed under Apache License 2.0 (permissive), allowing commercial and private use with minimal restrictions.
Quickstart
pip install aws-sdk-signers
from aws_sdk_signers import SigV4Signer, SigV4SigningProperties, AWSCredentialIdentity, AWSRequest
signer = SigV4Signer()
props = SigV4SigningProperties(service='s3', region='us-west-2')
creds = AWSCredentialIdentity(access_key='...', secret_key='...')
request = AWSRequest(method='GET', url='https://...')
signed_request = signer.sign(request, props, creds)Verify before relying
- Whether AsyncSigV4Signer is production-ready or also carries Pre-Alpha stability caveats.
- Whether payload_signing_enabled and content_checksum_enabled defaults (True) are appropriate for all use cases.
- Scope and frequency of breaking changes expected during Pre-Alpha phase.
Package facts
| License | Apache License 2.0 permissive |
| Python support | Supports the current Python release >=3.12 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 101 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 399,957 / month, #6,943 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 2 - Pre-AlphaIntended Audience :: DevelopersIntended Audience :: System AdministratorsLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: CPythonTopic :: Software Development :: Libraries |
Evidence: aws_sdk_signers-0.3.0-py3-none-any.whl
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See also requests-sigv4 · hellosign-python-sdk · cassandra-sigv4 · aws-request-signer · mcp-proxy-for-aws · sagemaker-mlflow · aws-requests-auth · requests-auth-aws-sigv4 · veracode-api-signing · py-builder-signing-sdk