# UniGen API

> One unified endpoint for AI agents to generate images, video, and audio from any provider. No API keys. No accounts. Just USDC.

## What is this

UniGen API is a unified media generation gateway. It exposes a single HTTP API that proxies requests to multiple AI providers (image, video, audio generation). The agent specifies the provider and model; UniGen passes the request through. No routing optimization. No model recommendations. It is a pipe.

## Who is this for

AI agents. Not humans. The API is designed to be consumed programmatically by autonomous agents that need to generate media as part of their workflows.

## Base URL

https://unigen-api.ai/v1

## Endpoints

- POST /v1/generate — Generate media. Agent specifies provider, model, and parameters.
- POST /v1/estimate — Get price, estimated time, and success rate before generating.
- GET /v1/capabilities — List all supported providers and models.
- GET /v1/pricing — Current pricing table per provider and model.
- GET /v1/status — Service operational status per provider.
- GET /v1/balance — Check USDC balance for a wallet address.

## Payment

USDC via x402 protocol. No API keys. No accounts. No subscriptions. Pay per request. The x402 HTTP payment protocol enables machine-to-machine payments without human intervention.

## Integration

- OpenAPI spec: https://unigen-api.ai/openapi.yaml
- Plugin manifest: https://unigen-api.ai/.well-known/ai-plugin.json

## Key Principle

UniGen does not choose models for you. The agent decides which provider and model to use. UniGen executes exactly what is requested. This is by design.