ConcurredConcurred API

Quick Start

Get up and running in minutes

Concurred is an AI gateway that gives you access to 9 top AI models through a single OpenAI-compatible API. No SDK needed — just point the OpenAI SDK at our base URL.

Get Your API Key

Sign up at concurred.app/dashboard and create an API key. Keys start with ck_.

Make Your First Request

curl https://agent-heavy.vercel.app/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Try Multi-Model Modes

The Chat API lets you pit models against each other:

# Battle: compare 2 models side by side
curl https://agent-heavy.vercel.app/api/chat \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"message": "Explain AI", "mode": "battle", "models": ["claude", "gpt"], "stream": false}'
 
# Fight: all models compete with voting
curl https://agent-heavy.vercel.app/api/chat \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"message": "Best programming language?", "mode": "fight", "rounds": 2}'

Next Steps

  • Gateway API — OpenAI-compatible endpoint with fallback, caching, load balancing, guardrails
  • Chat API — Battle, fight, and multi-instance modes with web search and voting
  • Models — All 9 models with aliases and vision support
  • Media API — Speech, music, and video generation
  • Authentication — API key management, BYOK, usage analytics

OpenAI SDK Compatible

Just point the OpenAI SDK at https://agent-heavy.vercel.app/api/v1 — switch between 9 models by changing the model parameter. No code changes needed.

Previous

Overview

Next

Authentication

On this page