HTTPX website screenshot

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 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.0/100 emerging ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-23 · rubric v0.5
AccessFreemium
1 APIs
AsyncClientsHTTP ClientLibraryPython

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 24.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 1.6 / 12
Discoverability 8.0 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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.

HTTPX

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 ...

Pricing Plans 1

Published pricing tiers and plan structures.

Httpx Plans Pricing

3 plans

PLANS

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.

Httpx Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

HTTPX API Rules

0 rules ·

SPECTRAL

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Httpx Domain Security

TLSv1.3

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
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: '0.19'
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: 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