Agent Card Validator MCP x402 USDC on Base

Audit + lint any x402/A2A service's discovery surfaces. Score 0-100, fix list, schema validation. Helps agents and developers grade x402 services on completeness/quality before integration.

Endpoints

EndpointDescriptionPrice
POST /v1/wellknowns/auditAudit 5 surfaces, score 0-100, return improvement TODO list$0.05
POST /v1/wellknowns/lintStrict JSON-schema lint of agent-card.json against Google A2A spec subset$0.03

Discovery surfaces

Provider

· github.com/sebastiancoombs/agent-card-validator-mcp