unified-api

Build product integrations with AI.

Connect your users to their apps

CCXT for prediction markets. PMXT is a unified API for trading on Polymarket, Kalshi, and more.

HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, PI, DSH, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an open standard. Your keys, your infrastructure.

Open-Sourcing the integration engine our platform runs on

Unified Interface for Constructing and Managing Workflows on different workflow engines, such as Argo Workflows, Tekton Pipelines, and Apache Airflow.

Open source user-facing product integrations

One unified email API across 18 providers (SMTP, Resend, SES, Postmark, SendGrid, Mailgun, …). Zero deps, RFC 8058 + DKIM ready, edge-first, strict TypeScript.

Unified Game Services API for Unity

One unified API for 18 live-chat & customer-support widgets. Zero deps, tree-shakeable, SSR-safe, CSP-aware, strict TypeScript.

Collective Knowledge web extension to browse CK repositories, visualize interactive graphs and articles, render CK-based websites, implement simple web services with JSON API (for example to crowdsource experiments or unify access to DNN). Demos of interactive articles, graphs and crowdsourced experiments:

Integrations Library for Vessel's Embedded Integrations Platform

Transport for London (TfL) python api

An open source Integration Platform

EvoLink.ai - One Key, All AI Models

⚡ Official TypeScript SDK for the Kombo Unified API

⚡ Official Python SDK for the Kombo Unified API

Apideck Node + Typescript SDK

Complete list of AI models available via EvoLink API, with ready-to-use OpenClaw configurations

CCXT.COLLECT – CryptoCurrency eXchange Trading Collector, A powerful .NET library for real-time cryptocurrency exchange data collection with unified WebSocket streaming and technical indicator analysis.