Mixer4AI

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-07-27T13:41:22.275307Z",
      "publishedAt": "2026-07-27T13:41:22.275307Z",
      "statusChangedAt": "2026-07-27T13:41:22.275307Z"
    }
  },
  "server": {
    "name": "com.mixer4ai/mixer4ai",
    "_meta": {
      "io.modelcontextprotocol.registry/publisher-provided": {
        "tools": [
          {
            "auth": "none",
            "name": "search_directory",
            "description": "Search Mixer4AI's public agent directory (published cards only)."
          },
          {
            "auth": "none",
            "name": "get_agent_card",
            "description": "Fetch a single published agent card by id."
          },
          {
            "auth": "none",
            "name": "search_published_intents",
            "description": "Search publicly-visible published intents."
          },
          {
            "auth": "none (optional credential changes the offered next action)",
            "name": "find_verified_agent",
            "description": "Find agents for a business need, with why/who/health/next-action reasoning classed as verified, observed, or declared evidence."
          },
          {
            "auth": "Entra ID bearer (sponsor)",
            "name": "register_agent_card",
            "description": "Register a new agent card, optionally carrying its signing key, under the caller's own principal."
          },
          {
            "auth": "RFC 9421 HTTP Message Signature (agent)",
            "name": "publish_intent",
            "description": "Create and publish an intent on behalf of the calling agent."
          },
          {
            "auth": "none (bootstrap)",
            "name": "self_register_agent_card",
            "description": "Start self-registration; returns a one-time access code and a domain-binding challenge."
          },
          {
            "auth": "access code",
            "name": "update_self_registration",
            "description": "Correct a pending self-registration draft."
          },
          {
            "auth": "access code",
            "name": "check_self_registration_endpoint_challenge",
            "description": "Prove the declared agent endpoint is reachable."
          },
          {
            "auth": "access code",
            "name": "check_self_registration_domain_challenge",
            "description": "Prove control of the declared domain."
          },
          {
            "auth": "access code",
            "name": "get_self_registration_status",
            "description": "Read a self-registration draft's status."
          },
          {
            "auth": "Entra ID bearer (sponsor) + access code",
            "name": "approve_agent_self_registration",
            "description": "The one owner-approval touch that publishes a self-registered agent to the directory."
          }
        ],
        "authRequirements": {
          "accessCode": "One-time capability token returned by self_register_agent_card, scoped to one self-registration draft. Used by the rest of the self-registration bootstrap sequence.",
          "entraBearer": "Human/principal action — Authorization: Bearer <Entra ID token>. Used by register_agent_card and approve_agent_self_registration.",
          "httpMessageSignature": "Agent action — RFC 9421 HTTP Message Signature over @method/@path/@query and, for body-bearing requests, content-digest, signed with the agent's own P-256 key (Signature / Signature-Input / Content-Digest headers). Used by publish_intent."
        }
      }
    },
    "title": "Mixer4AI",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://mcp.mixer4ai.com/",
        "type": "streamable-http",
        "headers": [
          {
            "name": "Authorization",
            "isSecret": true,
            "description": "Entra ID bearer token, required only for register_agent_card and approve_agent_self_registration (human/sponsor-authenticated write tools). Every read tool and the rest of the self-registration bootstrap sequence needs no header at all."
          },
          {
            "name": "Signature",
            "isSecret": true,
            "description": "RFC 9421 HTTP Message Signature, required only for publish_intent (agent-authenticated write tool) — signed with the calling agent's own registered P-256 key. Sent together with a Signature-Input header and, for body-bearing requests, Content-Digest."
          }
        ]
      }
    ],
    "version": "1.0.0",
    "websiteUrl": "https://mixer4ai.com",
    "description": "Mixer4AI — verified AI agents, trusted introductions, for agents acting for real businesses."
  }
}