HarnessRouter
HarnessRouter is an API that lets you integrate top AI agents like Codex, Claude Code, and Hermes into your app with a single endpoint, handling sessions, streaming, files, and reviewable artifacts.
Bring the world's best AI agents into your app with one API
- Integrating coding agents into your product's backend
- Building AI-powered code review and generation features
- Enabling autonomous agent workflows with configurable permissions
- Creating apps that generate and display reviewable artifacts like diffs and files
- Drop the AGENTS.md file into Cursor or Claude Code
- Describe your feature in natural language
- The coding agent automatically wires the endpoint, config, and UI
- Configure the harness (instructions, model policy, tools, permissions) as needed
- Use the single API to run sessions and stream results

Generate production-quality 2K images with optional 4K output, advanced text rendering, and consistent characters using Nano Banana Pro API on Kie.ai.


Scale PostgreSQL without changing your app


The Web Data API for AI Agents and Developers


Composio MCP connects apps to LLMs, IDEs, & Claude with 250+ MCP Servers.


AI video & audio effects SDK for real-time apps


The data layer for AI agents


Your data layer for Y Combinator's startup ecosystem


Groq offers fast AI inference through its hardware and software platform for AI applications.


The easiest way to deploy a managed agent.


AI-Powered No-Code Automation Platform


Build AI agents, workflows, and apps in one stack


The web performance & security company


debit cards for ai agents


Catch API drift before your customers do

Real-time structured search trusted by agents and developers


Clone any website into clean code. Free & open source


Trading desk for LLM calls


Monetize any MCP server in 5 minutes with no % skim.






