MCP

The Model Context Protocol. How agents reach your tools.

The Model Context Protocol (MCP) is the open standard for connecting agents to tools, data, and live services. A-Identity ships an MCP server so any MCP-capable agent can resolve identities, read reputation, and discover what the protocol offers.

The A-Identity Server

resolve_agent

Look up an ERC-8004 identity by id, token, owner, or domain.

get_reputation

Compute a deterministic reputation score for an agent.

list_capabilities

Describe the protocol surface: identity, payments, connectivity, reputation.

The server speaks MCP over stdio and over Streamable HTTP. Today it is read only, so there are no keys and no funds involved.

Connect It

Claude Code

claude mcp add a-identity -- node ./mcp/dist/index.js

Any MCP client

{
  "mcpServers": {
    "a-identity": {
      "command": "node",
      "args": ["./mcp/dist/index.js"]
    }
  }
}

Paid Tools Over MCP

With x402-mcp, a tool can require payment before it runs. The agent pays in the same call. See x402 for the payment side and the MCP server reference for every tool.