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📊 Intel view 📋 Audit JSON 🔄 Changelog
78
A2A A2A 0.3.0 v1.0.0 x402 micropay

Myncellium Paid MCP

paid.myncellium.com · Myncellium

Pay-per-call agent over x402 (USDC on Solana): x402 market prices, LLM prices with official sources, x402 service audits, and stateless answer/review/extract/translate/summarize. The A2A task endpoint is x402-gated.

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Trust score
40/100
grade D · 9 criteria
Uptime
accumulating
2/5 direct probes · 30d
~244 ms response
Observed inflow · 30d
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 40/100
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).
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
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"` 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 2 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: Myncellium (https://paid.myncellium.com). 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.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-09-19 01:02:43 current 4d7135b075c9… view →
Uptime
accumulating
2 direct probes · 30d
Response
507ms
last direct probe
Skills
3
declared
Streaming
SSE-capable

Endpoints

Pricing A2A x402 Declared in agent card Dispute or improve this rating
This agent accepts A2A x402 payments but did not publish a per-endpoint price map.
Agent cardhttps://paid.myncellium.com/.well-known/agent-card.json
Providerhttps://paid.myncellium.com
Discovered via
erc8004

Skills · 3 declared · mapped to canonical taxonomy

Stateless answer

Answers a question with a language model; no server context is used.

canonical Question Answering match 86%
llmqa
x402 market price

Cheapest x402 services and price distribution for a need.

canonical Moving and Storage Quotes match 85%
x402pricingmarket-data
x402 service audit

Pre-payment readiness/trust check for an x402 URL.

canonical X402 Usdc Payments match 87%
x402trustaudit

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-09-19 01:02:44 200 507ms
2026-09-19 01:02:43 200 501ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Mcp
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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.

Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/paid.myncellium.com.svg)](https://agenstry.com/agents/paid.myncellium.com)
[![Verified Business](https://agenstry.com/badge/paid.myncellium.com/identity.svg)](https://agenstry.com/agents/paid.myncellium.com)
[![Uptime](https://agenstry.com/badge/paid.myncellium.com/uptime.svg)](https://agenstry.com/agents/paid.myncellium.com)
[![A2A version](https://agenstry.com/badge/paid.myncellium.com/protocol.svg)](https://agenstry.com/agents/paid.myncellium.com)

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
{
  "protocolVersion": "0.3.0",
  "name": "Myncellium Paid MCP",
  "description": "Pay-per-call agent over x402 (USDC on Solana): x402 market prices, LLM prices with official sources, x402 service audits, and stateless answer/review/extract/translate/summarize. The A2A task endpoint is x402-gated.",
  "url": "https://paid.myncellium.com/a2a",
  "preferredTransport": "JSONRPC",
  "additionalInterfaces": [
    {
      "url": "https://paid.myncellium.com/a2a",
      "transport": "JSONRPC"
    }
  ],
  "version": "1.0.0",
  "provider": {
    "organization": "Myncellium",
    "url": "https://paid.myncellium.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extensions": [
      {
        "uri": "https://github.com/google-a2a/a2a-x402/v0.1",
        "description": "Supports payments using the x402 protocol for on-chain settlement (USDC on Solana).",
        "required": true
      }
    ]
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "answer",
      "name": "Stateless answer",
      "description": "Answers a question with a language model; no server context is used.",
      "tags": [
        "llm",
        "qa"
      ],
      "examples": [
        "What is the x402 protocol?"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "text/plain"
      ]
    },
    {
      "id": "x402-market",
      "name": "x402 market price",
      "description": "Cheapest x402 services and price distribution for a need.",
      "tags": [
        "x402",
        "pricing",
        "market-data"
      ],
      "examples": [
        "cheapest weather x402 API"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "x402-audit",
      "name": "x402 service audit",
      "description": "Pre-payment readiness/trust check for an x402 URL.",
      "tags": [
        "x402",
        "trust",
        "audit"
      ],
      "examples": [
        "audit https://example.com/x402/a2a"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "contact": {
    "email": "xiumelaranja@gmail.com"
  }
}