API Clients

A command-line downloader that also collects every detail a video site publishes about a video or a whole channel.

Reads a project and draws a clickable map of how its parts connect.

One tool that replaces pip, virtualenv, pyenv and several others, and runs far faster.

A command-line program that copies, syncs and verifies files across more than seventy kinds of cloud storage.

A search engine you run yourself, built for fast answers and forgiving spelling.

A Windows program that captures the screen and then sends the file wherever you tell it to go.

A search page that asks other engines and records nothing.

One page of about forty public facts about any web address.

Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

It packs a whole code folder into one file a language model can read.

🚀 The fast, Pythonic way to build MCP servers and clients.

A link shortener that records clicks and follows them through to a sign-up or a sale.

Runs web requests written in a plain text file and checks the answers.

It turns an OpenAPI description into a readable, searchable documentation site with a built-in request client.

It reads and edits YAML, JSON, XML and CSV files from the command line.

A library that renders a subset of HTML and CSS into an SVG image.

A command-line tool for sending text to language models, with every exchange logged locally.

A browser component for exploring and charting very large or continuously updating tables.

Reads, edits and renders PDFs from Python, quickly.

Pulls text, tables and the exact position of every object out of a PDF, and draws the table it detected so a bad result can be fixed.

A fake mail server with a web inbox, for reading messages before real people get them.

It decodes a file that is not text into a structure that can be asked questions.

A small language for describing what a model should return, and checking that it did.

A PostgreSQL extension that adds search-engine-quality keyword search as ordinary SQL.

One downloaded program that validates, merges, splits, shrinks, encrypts, signs, stamps and extracts text and images from PDFs, up to PDF 2.0.

It converts the output of common command-line tools into JSON, YAML or Python dictionaries.

A self-installed platform for feature switches and experiments, which reads results from the database that already holds the numbers.

It sends web requests from a terminal in short, readable commands.

Like `jq`, but for HTML: it pulls parts out of a page using CSS selectors.

Write a jq filter for a JSON file and watch the result update as you type.

A modern Python library for writing Telegram bots and channel posters.

An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and management. Optimizes Agent & Tool calling, and supports plugins.

A Go library that sends the same message to many messaging services through one call.

A fast command-line toolkit for sorting, joining, checking and describing CSV files.

It reads a web service's own description and attacks it with thousands of generated requests.

Connect any AI model to 1200+ integrations (MCP, CLI, API)

Eclipse Layout Kernel in JavaScript — the automatic graph layout React Flow does not ship, and the reason a 40-node map reads instead of tangling.

A version of curl whose connections look exactly like a real browser's.

A terminal window where you write a filter for a JSON file and see the result update as you type.

A fast Python web framework with request validation, authentication and API documentation included.

It lays out an unreadable database query so that a person can read it.

A pure-Python library that reads and writes the metadata inside audio files.

A command-line tool for calling web APIs, with short commands and saved logins.

One library | Many payment processors | Scale to multiple processors with few lines of code.

One place to manage & connect to all your MCP servers

It reads the hidden information inside audio files from Python, with no other software needed.

It reports exactly what is inside an audio or video file.