Documentation

Build with MerchantGuard.

REST endpoints, MCP server, agent skills, probe spec. Pay per call in USDC on Base or Stripe. Free tier 1,000 calls per month.

REST API Reference

POST /api/v2/agent/screen, /api/v2/sanctions/screen, /api/v2/llm-firewall, /api/v2/guardgate. Full request/response schemas.

Open

MCP Server

39 compliance tools available in Claude Code via Model Context Protocol. One install command.

Open

Mystery Shopper Probe Spec

The 10 adversarial probes used to certify AI agents: security, ethics, PII, reliability, prompt injection.

Open

Agent Skills

Drop-in capabilities for autonomous agents. Compliance passport generation, GuardScore lookup, sanctions screening.

Open

Quick start

curl -X POST https://www.merchantguard.ai/api/v2/agent/screen \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "agentId": "agent_alpha_99",
    "requestedAction": "execute_transfer",
    "payload": { "amount": 500, "currency": "USD" }
  }'

Get a key: /developers