# GF Agent Toll v1.4.0 Quickstart

Canonical agent base URL: https://gfpick-agent-api.vercel.app
Core compute origin: https://api.gfpick.com

Start with POST /free/gcc-profit-check (0 USDC).
For paid requests prefer 0.25 or 0.75 USDC tools when sufficient. A paid call returns HTTP 402 + PAYMENT-REQUIRED; sign the challenge in the caller wallet and retry the same operation with PAYMENT-SIGNATURE.

MCP: https://gfpick-agent-api.vercel.app/mcp
A2A: https://gfpick-agent-api.vercel.app/.well-known/agent-card.json
x402: https://gfpick-agent-api.vercel.app/.well-known/x402
OpenAPI: https://gfpick-agent-api.vercel.app/openapi.json
Identity: https://gfpick-agent-api.vercel.app/identity