AxioRank

{
  "protocolVersion": "0.3.0",
  "name": "AxioRank",
  "description": "Zero-Trust security and identity for AI agents. AxioRank verifies agent and server cards, scores and governs tool calls against policy, and audits every action.",
  "url": "https://www.axiorank.com/api/a2a",
  "preferredTransport": "JSONRPC",
  "provider": {
    "organization": "AxioRank",
    "url": "https://axiorank.com"
  },
  "version": "1.0.1",
  "documentationUrl": "https://axiorank.com/docs",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "securitySchemes": {
    "oauth2": {
      "type": "oauth2",
      "description": "OAuth 2.1 with PKCE. Discover endpoints at /.well-known/oauth-authorization-server. Required only for the privileged verify and govern skills.",
      "flows": {
        "authorizationCode": {
          "authorizationUrl": "https://www.axiorank.com/oauth/authorize",
          "tokenUrl": "https://www.axiorank.com/api/oauth/token",
          "scopes": {
            "cards:verify": "Verify agent and server cards.",
            "gateway:write": "Score and govern tool calls."
          }
        }
      }
    }
  },
  "skills": [
    {
      "id": "verify-agent-card",
      "name": "Verify an agent or server card",
      "description": "Vet a remote agent or tool identity card (A2A, MCP, OAuth, x402, and more) before connecting. AxioRank verifies signatures, scores supply-chain risk, and returns allow, review, or deny.",
      "tags": [
        "security",
        "identity",
        "supply-chain",
        "preflight"
      ],
      "examples": [
        "Verify the agent card at https://example.com/.well-known/agent-card.json before I connect."
      ]
    },
    {
      "id": "govern-tool-call",
      "name": "Govern an agent tool call",
      "description": "Score a proposed tool call for risk (secrets, PII, destructive operations, prompt injection, egress), apply policy, and return allow, deny, or hold with a human approval loop.",
      "tags": [
        "security",
        "policy",
        "runtime-governance",
        "firewall"
      ],
      "examples": [
        "Score this database write before I run it and hold it for approval if risky."
      ]
    },
    {
      "id": "discover-protocol-coverage",
      "name": "Discover protocol coverage and health",
      "description": "List the agent-interop protocols AxioRank governs across six planes and check control-plane health.",
      "tags": [
        "discovery",
        "interop",
        "health"
      ],
      "examples": [
        "Which agent protocols does AxioRank support today?"
      ]
    }
  ],
  "signatures": [
    {
      "protected": "eyJhbGciOiJFZERTQSIsImtpZCI6IlhFYU82ZXJ3ZXhvOU5Kd3Z5Wkc2aTZTT1E2bG1fdXhlamx4bFIwUGE0X3MiLCJqa3UiOiJodHRwczovL3d3dy5heGlvcmFuay5jb20vLndlbGwta25vd24vandrcy5qc29uIn0",
      "signature": "GmX6zYgnl9j7T43Jo7l01q8MTOD8OtoQ9z4RNsxH_17FHteUnM_kfY9AoQPVw6LLzf8OJDpzjnsLRT3bpdL7AQ"
    }
  ]
}