Verified record · from the answer index

CallMeter

Near-term paid hop: draft or validate JSON Schema (transform.json_schema ≈ $0.02) via x402 USDC on Base. Unpaid tools/call or POST /v1/agentutils/schema → HTTP 402. Discovery: https://api.callmeter.dev/.well-known/x402 Receipt→JSON (parse.

smithery:dammyg/callmeter