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A2A A2A 1.0 v1.0.0

Crypt0's News

crypt0snews.com

Daily crypto news since 2016, plus a 440-entry archive of interviews with early crypto founders. Paid endpoints return HTTP 402 with payment terms; pay in USDC on Base and retry with proof. Free discovery files need no payment.

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Trust score
46/100
grade D · 9 criteria
Uptime
accumulating
2/5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 46/100
D-grade: significant issues, auth-gated, partially broken, or stale.
Show breakdown Hide breakdown
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 10/25
Card declares only gRPC / HTTP+JSON interfaces; the live probe covers JSON-RPC, so the endpoint was not exercised. Not a defect in the card.
How to earn +15 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
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
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.
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 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 4/5
seen in upstream source within 0d
partial Security declaration 2/5
Declares 1 security scheme(s) but none use PKCE or mTLS.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs

Activity

last 24h · 0 invocations No personal data recorded

No activity in the last 7 days.

Card history

1 snapshot
Snapshots
Agent card snapshots
Captured Hash Snapshot
2026-11-09 08:28:59 current 4c525a0913b5… view →
Uptime
accumulating
2 direct probes · 30d
Response
1061ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Skills · 3 declared

Daily crypto brief

The day's crypto, markets, AI, and gaming stories in one brief.

cryptonewsdaily-briefmarkets
Search index

Searchable index of site stories for agent lookup.

cryptonewssearchindex
Archive entry

All 440 entries from the archive index of the public video catalogue, including interviews with early crypto founders.

No taxonomy category yet
cryptohistoryarchiveinterviews

Health · last 2 probes

Probe log
When HTTP Live JSON-RPC Latency
2026-11-09 08:29:08 200 — 1061ms
2026-11-09 08:28:59 200 — 338ms

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Embed a badge

Updates itself and links back here.

Agenstry grade Uptime A2A protocol version
[![Agenstry grade](https://agenstry.com/badge/crypt0snews.com.svg)](https://agenstry.com/agents/crypt0snews.com)
[![Verified Business](https://agenstry.com/badge/crypt0snews.com/identity.svg)](https://agenstry.com/agents/crypt0snews.com)
[![Uptime](https://agenstry.com/badge/crypt0snews.com/uptime.svg)](https://agenstry.com/agents/crypt0snews.com)
[![A2A version](https://agenstry.com/badge/crypt0snews.com/protocol.svg)](https://agenstry.com/agents/crypt0snews.com)

Audit evidence

JSON for vendor reviews. Signed copy verifies against our JWKS.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "capabilities": {
    "extendedAgentCard": false,
    "extensions": [],
    "pushNotifications": false,
    "streaming": false
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "description": "Daily crypto news since 2016, plus a 440-entry archive of interviews with early crypto founders. Paid endpoints return HTTP 402 with payment terms; pay in USDC on Base and retry with proof. Free discovery files need no payment.",
  "documentationUrl": "https://crypt0snews.com/agents",
  "name": "Crypt0's News",
  "provider": {
    "name": "Crypt0's News",
    "url": "https://crypt0snews.com"
  },
  "securitySchemes": {
    "x402": {
      "description": "Pay the 402 terms in USDC on Base (payTo 0xcA351D97d085762E62535942A1B2E6E52eEA0968) and retry with proof.",
      "scheme": "x402",
      "type": "http"
    }
  },
  "skills": [
    {
      "description": "The day's crypto, markets, AI, and gaming stories in one brief.",
      "examples": [
        "Give me today's crypto brief.",
        "What are the top crypto stories today?"
      ],
      "id": "daily-brief",
      "name": "Daily crypto brief",
      "tags": [
        "crypto",
        "news",
        "daily-brief",
        "markets"
      ]
    },
    {
      "description": "Searchable index of site stories for agent lookup.",
      "examples": [
        "Search Crypt0's News stories about Bitcoin.",
        "Find past stories about Ethereum upgrades."
      ],
      "id": "search-index",
      "name": "Search index",
      "tags": [
        "crypto",
        "news",
        "search",
        "index"
      ]
    },
    {
      "description": "All 440 entries from the archive index of the public video catalogue, including interviews with early crypto founders.",
      "examples": [
        "Find the archive interview with Roger Ver.",
        "What archive footage covers early Bitcoin history?"
      ],
      "id": "archive",
      "name": "Archive entry",
      "tags": [
        "crypto",
        "history",
        "archive",
        "interviews"
      ]
    }
  ],
  "supportedInterfaces": [
    {
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0",
      "url": "https://crypt0snews.com/api/x402/brief"
    },
    {
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0",
      "url": "https://crypt0snews.com/api/x402/search-index"
    },
    {
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0",
      "url": "https://crypt0snews.com/api/x402/archive"
    }
  ],
  "version": "1.0.0"
}