# A2A-x402 Oracle
> Paid demand intelligence for A2A x402. Humans subscribe. Agents pay USDC on Base.

MCP: https://a2a-x402-oracle.vercel.app/api/mcp
Consult: https://a2a-x402-oracle.vercel.app/api/v1/consult
Well-known: https://a2a-x402-oracle.vercel.app/.well-known/x402
Agent card: https://a2a-x402-oracle.vercel.app/.well-known/agent-card.json
Network: eip155:8453 USDC
Unpaid paid-paths MUST return HTTP 402.

## Tools
- oracle_health (free): Free discovery. Returns live tools, networks, payTo truncated, facilitator, and connect URLs.
- oracle_pricing (free): Free current SKU menu.
- oracle_ask ($0.10): Short x402 / MCP / A2A how-to.
- oracle_diagnose_402 ($0.50): Paste headers. Returns LIVE | DECLARED_ONLY | MISCONFIGURED | DEAD.
- oracle_probe_call ($0.25): Knock a URL or Agent Card.
- oracle_demand_cycle ($5.00): Tables A/B/C demand cycle.
- oracle_review_mcp ($3.00): Repo or tool defs to patch plan.
- oracle_bazaar_rewrite ($1.50): Rewrite descriptions and inputSchema.
- complete_oracle_task ($15.00): Multi-step executor task.