A2A live JSON-RPC A2A a2a/0.3 v1.30.0 x402 micropay

Feegate Data Marketplace

feegate.org · Feegate

Feegate 是 x402 协议的数据变现结算层：给数据源接上按次收费的 MCP 端点，由 AI Agent 用 USDC 自主付款，平台负责代收、归集与次月 10 号分账。发现层（robots/llms/sitemap/JSON-LD/MCP Registry）与结算层一并托管。

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Trust score

57/100

grade D · 9 criteria

Uptime

accumulating

1/5 direct probes · 30d

~190 ms response

Observed inflow · 30d

not yet measured

wallet declared · scan pending

Dispute or improve this rating

D

Conformance score: 57/100

D-grade: significant issues, auth-gated, partially broken, or stale.

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 (answers in ~190 ms).

partial Protocol version 2/10

Declares unrecognised version 'a2a/0.3'.

            How to earn +8 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 1 probe so far, need ≥5 for an uptime grade.

pass Skill declaration 10/10

Declares 6 skills with structured metadata.

partial Verified Identity 5/10

Provider declared: Feegate (https://feegate.org). 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.

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.

Card history

1 snapshot Every change to agent-card.json

Agent card snapshots
Captured	Hash	Snapshot
2026-10-31 14:27:23 current	`68a0422f8de8…`	view →

Uptime

accumulating

1 direct probes · 30d

Response

179ms

last direct probe

Skills

declared

Streaming

✓

SSE-capable

Try it

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

Endpoints

Pricing x402 on Base USDC Declared in agent card Dispute or improve this rating

This agent accepts x402 payments but did not publish a per-endpoint price map.

Try it ↗ Opens the operator's documentation in a new tab.

Settlement wallet: 0x230cd9cd33589bcf33cd32e5aa4f9e0c3994a63b on Base · basescan ↗

Agent card	`https://feegate.org/.well-known/agent-card.json`
Provider	https://feegate.org
Docs	https://feegate.org/docs

Discovered via

manifests

Skills · 6 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

ping

健康检查，返回网络、收款地址与目录版本。

canonical Process Status Retrieval match 88%

freediscovery

fee_quote

报价：算某次调用要付多少、抽成多少、到手多少。

No taxonomy category yet

freediscovery

list_products

免费列目录（不含 detail 字段）。

No taxonomy category yet

freediscovery

product_detail

按 id 取单个数据产品的完整字段：覆盖度、更新频率、许可、样例响应。

No taxonomy category yet

paidx402

marketplace_catalog

取整个市场的上架清单：id / 名称 / 供应方 / 单价 / 已验证标记。

No taxonomy category yet

paidx402

platform_stats

取平台实时指标：PV/UV、AI 爬虫占比、被引用的页面排行。

No taxonomy category yet

paidx402

Health · last 1 probes

When	HTTP	Live JSON-RPC	Latency
2026-10-31 14:27:23	200	✓	179ms

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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/feegate.org.svg)](https://agenstry.com/agents/feegate.org)
[![Verified Business](https://agenstry.com/badge/feegate.org/identity.svg)](https://agenstry.com/agents/feegate.org)
[![Uptime](https://agenstry.com/badge/feegate.org/uptime.svg)](https://agenstry.com/agents/feegate.org)
[![A2A version](https://agenstry.com/badge/feegate.org/protocol.svg)](https://agenstry.com/agents/feegate.org)

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": "Feegate Data Marketplace",
  "description": "Feegate \u662f x402 \u534f\u8bae\u7684\u6570\u636e\u53d8\u73b0\u7ed3\u7b97\u5c42\uff1a\u7ed9\u6570\u636e\u6e90\u63a5\u4e0a\u6309\u6b21\u6536\u8d39\u7684 MCP \u7aef\u70b9\uff0c\u7531 AI Agent \u7528 USDC \u81ea\u4e3b\u4ed8\u6b3e\uff0c\u5e73\u53f0\u8d1f\u8d23\u4ee3\u6536\u3001\u5f52\u96c6\u4e0e\u6b21\u6708 10 \u53f7\u5206\u8d26\u3002\u53d1\u73b0\u5c42\uff08robots/llms/sitemap/JSON-LD/MCP Registry\uff09\u4e0e\u7ed3\u7b97\u5c42\u4e00\u5e76\u6258\u7ba1\u3002",
  "url": "https://feegate.org/mcp",
  "version": "1.30.0",
  "protocolVersion": "a2a/0.3",
  "documentationUrl": "https://feegate.org/docs",
  "provider": {
    "organization": "Feegate",
    "url": "https://feegate.org",
    "contact": "brian@51kaifa.app"
  },
  "iconUrl": "https://feegate.org/assets/img/logo.png",
  "capabilities": {
    "streaming": true,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "authentication": {
    "schemes": [
      "none"
    ],
    "note": "Discovery and free tools need no credential. Paid calls either settle on-chain via x402 (Base mainnet USDC) or draw down prepaid RMB credits with \"Authorization: Bearer fg_...\"."
  },
  "skills": [
    {
      "id": "ping",
      "name": "ping",
      "description": "\u5065\u5eb7\u68c0\u67e5\uff0c\u8fd4\u56de\u7f51\u7edc\u3001\u6536\u6b3e\u5730\u5740\u4e0e\u76ee\u5f55\u7248\u672c\u3002",
      "tags": [
        "free",
        "discovery"
      ],
      "priceUsd": 0
    },
    {
      "id": "fee_quote",
      "name": "fee_quote",
      "description": "\u62a5\u4ef7\uff1a\u7b97\u67d0\u6b21\u8c03\u7528\u8981\u4ed8\u591a\u5c11\u3001\u62bd\u6210\u591a\u5c11\u3001\u5230\u624b\u591a\u5c11\u3002",
      "tags": [
        "free",
        "discovery"
      ],
      "priceUsd": 0
    },
    {
      "id": "list_products",
      "name": "list_products",
      "description": "\u514d\u8d39\u5217\u76ee\u5f55\uff08\u4e0d\u542b detail \u5b57\u6bb5\uff09\u3002",
      "tags": [
        "free",
        "discovery"
      ],
      "priceUsd": 0
    },
    {
      "id": "product_detail",
      "name": "product_detail",
      "description": "\u6309 id \u53d6\u5355\u4e2a\u6570\u636e\u4ea7\u54c1\u7684\u5b8c\u6574\u5b57\u6bb5\uff1a\u8986\u76d6\u5ea6\u3001\u66f4\u65b0\u9891\u7387\u3001\u8bb8\u53ef\u3001\u6837\u4f8b\u54cd\u5e94\u3002",
      "tags": [
        "paid",
        "x402"
      ],
      "priceUsd": 0.002
    },
    {
      "id": "marketplace_catalog",
      "name": "marketplace_catalog",
      "description": "\u53d6\u6574\u4e2a\u5e02\u573a\u7684\u4e0a\u67b6\u6e05\u5355\uff1aid / \u540d\u79f0 / \u4f9b\u5e94\u65b9 / \u5355\u4ef7 / \u5df2\u9a8c\u8bc1\u6807\u8bb0\u3002",
      "tags": [
        "paid",
        "x402"
      ],
      "priceUsd": 0.005
    },
    {
      "id": "platform_stats",
      "name": "platform_stats",
      "description": "\u53d6\u5e73\u53f0\u5b9e\u65f6\u6307\u6807\uff1aPV/UV\u3001AI \u722c\u866b\u5360\u6bd4\u3001\u88ab\u5f15\u7528\u7684\u9875\u9762\u6392\u884c\u3002",
      "tags": [
        "paid",
        "x402"
      ],
      "priceUsd": 0.005
    }
  ],
  "mcp": {
    "transport": "streamable-http",
    "endpoint": "https://feegate.org/mcp",
    "manifest": "https://feegate.org/.well-known/mcp-manifest.json",
    "note": "GET \u8fd4\u56de 406/400 \u5c5e\u6b63\u5e38\uff08\u9700\u8981 MCP \u63e1\u624b\uff09\uff0c\u7528 POST + Accept: application/json, text/event-stream"
  },
  "x402": {
    "version": 2,
    "network": "eip155:8453",
    "asset": "USDC",
    "assetContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0x230cd9cd33589bcf33cd32e5aa4f9e0c3994a63b",
    "facilitator": "https://facilitator.payai.network",
    "settlementCycle": "\u6309\u81ea\u7136\u6708\u5f52\u96c6\uff0c\u6b21\u6708 10 \u53f7\u751f\u6210\u7ed3\u7b97\u5355\u5e76\u6253\u6b3e",
    "minPayoutUsd": 50
  },
  "products": {
    "count": 9,
    "verifiedCount": 4,
    "priceRangeUsd": {
      "min": 0.005,
      "max": 0.15
    },
    "catalog": "https://feegate.org/marketplace"
  },
  "updated": "2026-10-31",
  "updatedAt": "2026-10-31 19:10:36 +0800",
  "_source": "https://feegate.org/.well-known/x402.json",
  "_note": "\u672c\u6587\u4ef6\u7531 feegate_agentcard.py \u4ece x402.json \u6d3e\u751f\uff0c\u4e0d\u5355\u72ec\u7ef4\u62a4\u6570\u5b57\u3002"
}

Activity (audit trail)

Card history

Try it

Endpoints

Skills · 6 declared by this agent

Health · last 1 probes

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Audit-grade evidence bundle

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