HTTPX

HTTPX is a fully featured HTTP client for Python 3 with sync and async APIs, HTTP/1.1 and HTTP/2 support. It is broadly compatible with the popular requests library while adding modern features such as strict timeouts, type annotations, direct WSGI and ASGI transport, SSL verification, cookie persistence, proxy support, and multipart uploads.

HTTPX publishes 1 API on the APIs.io network. Tagged areas include Async, Clients, HTTP Client, Library, and Python.

The HTTPX catalog on APIs.io includes 1 Spectral governance ruleset.

HTTPX’s developer surface includes documentation and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.9/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-19 · rubric v0.12.0

AccessFreemium

1 APIs

AsyncClientsHTTP ClientLibraryPython

Kin Score

Kin Score How this is scored →
scored 2026-08-19 · rubric v0.12.0

Composite quality — 11.9/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 2.7 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.0 / 10

Discoverability 5.0 / 9

Regulatory Posture 1.7 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Education & Research regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/httpx: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Httpx Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Releases

Releases

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: httpx
name: HTTPX
description: HTTPX is a fully featured HTTP client for Python 3 with sync and async APIs, HTTP/1.1 and HTTP/2 support. It
  is broadly compatible with the popular requests library while adding modern features such as strict timeouts, type annotations,
  direct WSGI and ASGI transport, SSL verification, cookie persistence, proxy support, and multipart uploads.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/httpx.png
tags:
- Async
- Clients
- HTTP Client
- Library
- Python
url: https://raw.githubusercontent.com/api-evangelist/httpx/refs/heads/main/apis.yml
created: '2026-03-27'
modified: '2026-04-28'
specificationVersion: '0.23'
apis:
- aid: httpx:httpx
  name: HTTPX
  description: HTTPX is a fully featured HTTP client library for Python 3 with sync and async APIs, HTTP/1.1 and HTTP/2 support.
    It is consumed as a Python package rather than as a hosted API service.
  humanURL: https://www.python-httpx.org
  tags:
  - Async
  - Clients
  - HTTP Client
  - Library
  - Python
  properties:
  - type: Documentation
    url: https://www.python-httpx.org
  - type: GettingStarted
    url: https://www.python-httpx.org/quickstart/
  - type: Repository
    url: https://github.com/encode/httpx
  - type: Package
    url: https://pypi.org/project/httpx/
  - type: Rules
    url: rules/httpx-rules.yml
common:
- type: Releases
  url: https://github.com/encode/httpx/releases
- type: CodeOfConduct
  url: https://github.com/encode/httpx/blob/master/docs/code_of_conduct.md
- type: ContributionGuide
  url: https://github.com/encode/httpx/blob/master/.github/CONTRIBUTING.md
- type: License
  name: BSD-3-Clause
  url: https://github.com/encode/httpx/blob/master/LICENSE
- type: DomainSecurity
  url: security/httpx-domain-security.yml
- type: Website
  url: https://www.python-httpx.org
- type: Documentation
  url: https://www.python-httpx.org
- type: GitHubOrganization
  url: https://github.com/encode/httpx
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

HTTPX

Kin Score

APIs 1

HTTPX

Pricing Plans 1

Httpx Plans Pricing

Rate Limits 1

Httpx Rate Limits

FinOps 1

Httpx Finops

Spectral Rules 1

HTTPX API Rules

Security Posture 1

Httpx Domain Security

Resources

Documentation 2

Build 2

Access & Security 1

Operate 1

Commercial 1

Company 1

Source (apis.yml)