Api Testing Python Packages

schemathesis

Catch API bugs before your users do

httpie

🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

arjun

HTTP parameter discovery suite.

surety

A Python framework for contract testing in CI/CD pipelines. Validates communication boundaries between services without requiring a shared environment.

swagger-coverage

Adaptation of swagger-coverage project for python

robotframework-request-reporter

Standalone HTML API reports per Robot Framework test case, linking multiple HTTP requests, responses and business validations in one offline report.

je-api-testka

A framework for API automation

je-api-testka-dev

A framework for API automation

mobsf

Mobile Security Framework (MobSF) is an automated, all-in-one mobile application (Android/iOS/Windows) pen-testing, malware analysis and security assessment framework capable of performing static and dynamic analysis.

prauga-flexdoc

Backend-native API workbench that detects when your running implementation disagrees with OpenAPI.

plunger-cli

An HTTP client built for AI agents: an MCP server and a command line that send requests safely, plus a native window to see what the agent did. Rust, no account, no telemetry.

specsentinel

CLI that checks a live API against its OpenAPI spec. Exit code 0 if it matches, 1 on drift, 2 if the check could not run.

robotframework-wiremock

Robot framework library for WireMock

pytest-graphql

Schema-aware GraphQL API testing for pytest: a schema-driven client, response matchers, seeded fake data and pytest fixtures.

httpcrabber

🦀 Network-level HTTP/HTTPS/WebSocket interceptor for reverse-engineering and debugging web APIs. Records whole sessions to disk — JSONL dump + every JS file — with nothing injected into the page. mitmproxy + any upstream proxy.

http-prompt

An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie

llmock

Local mock server for testing LLM retries, fallbacks, and provider failure handling without spending tokens.

mimicker

Your lightweight, Python-native HTTP mocking server

behave-steplib

Reusable step libraries for Behave BDD — share, discover and install typed, multilingual step definitions for HTTP APIs, web browsers, databases and Kafka. Zero mandatory dependencies; each technology is an optional extra.

locomotive

Load and regression performance testing for CI/CD pipelines

proxy-mock

HTTP mock and proxy server for integration tests: mocks, response sequences, record/replay and traffic capture

robotframework-paylo

Paylo — safe, type-preserving JSON payload templates for Python and Robot Framework.

lashtest

Write production API tests in Python without boilerplate — fluent assertions, retries, OpenAPI validation and Allure reports.

jevcompat

A testable spec and conformance suite for Jev-compatible (TypeSafe System One) API servers, with a normalising proxy, a reference mock and a GitHub Action.