A2A live JSON-RPC A2A 0.3.0 v0.1.0 x402 micropay

Agentropolis

agentropolis.io · Agentropolis

Search engine for agent-usable tools: MCP servers, x402/MPP paid APIs, A2A agents and kits, with payment-verified trust scores. Read-only; never pays on your behalf.

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🛡

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Verify the domain agentropolis.io via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

Verify ownership

🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch

Trust score

60/100

grade C · 9 criteria

Uptime

not measured

no direct probes in 30d

Observed inflow · 30d

—

no payment wallet declared

Dispute or improve this rating

C

Conformance score: 60/100

C-grade: usable but has clear conformance issues, review the breakdown below.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

pass Live JSON-RPC 25/25

Endpoint responds to a negotiated A2A SendMessage probe.

partial Protocol version 5/10

Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.

            How to earn +5 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

info Uptime track record 0/15

Only 0 probes so far, need ≥5 for an uptime grade.

pass Skill declaration 10/10

Declares 3 skills with structured metadata.

partial Verified Identity 5/10

Provider declared: Agentropolis (https://agentropolis.io/). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 5/5

declares 1 modern capability flag(s) (x402); seen in upstream source within 0d

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime

not measured

0 direct probes · 30d

Response

—

no direct probe retained

Skills

declared

Streaming

—

SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

Endpoints

Agent card	`https://agentropolis.io/a2a`
Provider	https://agentropolis.io/
Docs	https://agentropolis.io/llms.txt

Discovered via

a2aregistry

Health · last 0 probes

When	HTTP	Live JSON-RPC	Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/agentropolis.io.svg)](https://agenstry.com/agents/agentropolis.io)
[![Verified Business](https://agenstry.com/badge/agentropolis.io/identity.svg)](https://agenstry.com/agents/agentropolis.io)
[![Uptime](https://agenstry.com/badge/agentropolis.io/uptime.svg)](https://agenstry.com/agents/agentropolis.io)
[![A2A version](https://agenstry.com/badge/agentropolis.io/protocol.svg)](https://agenstry.com/agents/agentropolis.io)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "name": "Agentropolis",
  "url": "https://agentropolis.io/a2a",
  "description": "Search engine for agent-usable tools: MCP servers, x402/MPP paid APIs, A2A agents and kits, with payment-verified trust scores. Read-only; never pays on your behalf.",
  "version": "0.1.0",
  "documentationUrl": "https://agentropolis.io/llms.txt",
  "iconUrl": null,
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "find_kits",
      "name": "Find tools for a task",
      "description": "Natural-language search over MCP servers, paid APIs and kits. Send the task as text.",
      "tags": [
        "search",
        "discovery",
        "mcp",
        "x402",
        "mpp"
      ],
      "examples": [
        "find a web search API under $0.01",
        "MCP server for Postgres"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "call_kit",
      "name": "Call an x402 kit (non-custodial pass-through)",
      "description": "Send a data part {\"skill\":\"call_kit\",\"id\":\"<listing id>\",\"endpoint\":\"/path\",\"method\":\"POST\",\"body\":{...}}. A 402 returns the seller's payment requirements unchanged; pay the seller from your own wallet and resend with \"payment_signature\" (x402 v2) or \"x_payment\" (v1). No custody, no fees.",
      "tags": [
        "x402",
        "relay",
        "payments"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "get_kit",
      "name": "Get kit manifest",
      "description": "Send JSON {\"skill\":\"get_kit\",\"id\":\"<listing id>\"} to get a kit.json v0.1 manifest.",
      "tags": [
        "manifest"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "Agentropolis",
    "url": "https://agentropolis.io/"
  }
}