// AGENT DISCOVERY — 3 PROTOCOLS

GET https://structureclerk.ca/api/agent-manifest

{
  "name": "StructureClerk",
  "version": "2.0.0",
  "pricing": "x402-metered",
  "auth_required": false,
  "protocols": {
    "a2a": "/api/a2a",
    "mcp": "/api/mcp-http",
    "rest": "/api/agent/*"
  },
  "jurisdictions_covered": 170,
  "languages": ["fr", "en"]
}

A2A 0.2.1MCP 2025-03-26REST v1ERC-8004 registeredx402 USDC

Available endpoints

All endpoints are public. Human users: always free. Agent callers: metered via x402 (USDC on Base Sepolia). Include the header X-Caller-Type: agent for agent access.

POST/api/a2aA2A v0.2.1A2A — Agent-to-Agent▼

POST/api/mcp-httpMCP 2025-03-26MCP — Model Context Protocol▼

GET/api/agent-manifestRESTAgent Manifest▼

POST/api/agent/compliance-checkRESTCompliance Analysis▼

GET/api/agent/jurisdiction-map?jurisdiction=QCRESTJurisdiction Mapping▼

POST/api/agent/roadmapRESTCompliance Roadmap▼

MCP Client Config

Add this to your MCP client configuration to use StructureClerk tools.

{
  "mcpServers": {
    "structureclerk": {
      "url": "https://structureclerk.ca/api/mcp-http",
      "transport": "streamable-http"
    }
  }
}

ERC-8004 Registered Agent

StructureClerk is registered on the ERC-8004 standard — the identity protocol for autonomous agents co-authored by Google, MetaMask, Coinbase and the Ethereum Foundation. On-chain verifiable identity, portable reputation.

Agent Card ↗Agent JSON ↗Registration ↗ERC-8004 spec ↗

x402 Agent Payments — USDC on Base Sepolia

StructureClerk uses the x402 protocol (HTTP 402 Payment Required) for machine-to-machine payments. Human users are always free. AI agents pay per API call in USDC on Base Sepolia testnet.

Endpoint	Price	Description
`/api/agent/jurisdiction-map`	$0.01 USDC	Jurisdiction mapping (170)
`/api/agent/compliance-check`	$0.10 USDC	Compliance analysis
`/api/agent/roadmap`	$0.15 USDC	Compliance roadmap
`/api/agent/algorithmic-compliance`	$0.20 USDC	Algorithmic assessment
`/api/a2a`	$0.10 USDC	A2A protocol (any method)
`/api/mcp-http (tools/call)`	$0.05 USDC	MCP tools/call only

x402 PAYMENT FLOW

1. Agent sends request with X-Caller-Type: agent
2. Server returns 402 Payment Required + x402 payload
3. Agent creates USDC payment on Base Sepolia
4. Agent retries request with X-Payment header
5. Server verifies payment and returns data

// Example 402 response:
{
  "x402Version": 1,
  "accepts": [{
    "scheme": "exact",
    "network": "base-sepolia",
    "maxAmountRequired": "100000",
    "payTo": "0x...",
    "asset": "USDC on base-sepolia"
  }]
}

x402 spec ↗Base Sepolia Faucet ↗USDC Faucet ↗