{"method":"POST","priceUsd":0.001,"network":"eip155:8453","description":"JSON Schema Validate: validate a JSON value against a deterministic schema subset for agent payload checking and structured-output verification. Supports type, properties, required, enum, const, numeric/string/array bounds, pattern, items and additionalProperties=false. Returns machine-readable error paths plus retry guidance.","example":{"value":{"name":"Ada"},"schema":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}}}}