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📊 Intel view 📋 Audit JSON 🔄 Changelog
75
A2A v0.1.0

Rattlesnakes By Mail

rattlesnakesbymail.com · Benes the Menace

A public record of documented and observed behaviour of AI crawlers, fetchers and search bots. Every claim carries a vendor quote, a date and a source URL. Dataset published under CC BY 4.0.

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🛡
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Verify the domain rattlesnakesbymail.com 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
34/100
grade F · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~27 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

F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
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 →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 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 5 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Benes the Menace (https://benesthemenace.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 4/5
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
2026-10-02 11:03:52 current 44f7a51ea99e… view →
Uptime
accumulating
1 direct probes · 30d
Response
26ms
last direct probe
Skills
5
declared
Streaming
—
SSE-capable

Skills · 5 declared · mapped to canonical taxonomy

Look Up A Crawler

Look up a documented crawler on Rattlesnakes By Mail by name, slug, or user-agent string, and return identity fields, current claims, publication dates, and evi…

canonical Get Article match 82%
mcpread
Identify A User Agent

Match an unrecognized raw User-Agent header against the crawlers documented on Rattlesnakes By Mail, and return the matched crawler plus instructions for verify…

canonical Agent Profiles match 82%
mcpread
List Changes

List recorded changes to claims on Rattlesnakes By Mail, newest first, with the change date and the affected crawler. Filter by date with since, by crawler with…

canonical CRM Updates match 82%
mcpread
Ask A Question

Match a free-text question against the claims published on Rattlesnakes By Mail, and return the matching claims, or no match when no published claim covers the …

canonical Get Article match 80%
mcpread
Submit A Note

Submit a correction or note about a claim, an entity, or a question on Rattlesnakes By Mail. Requires a client token issued out of band by the publisher. Every …

canonical Email Send and Manage match 80%
mcpread

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-02 11:03:52 200 ✗ 26ms

Cheaper or better alternatives per-skill

↑ 2 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.

Similar agents embedding-nearest

AI Crawler Index live
{"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoam
Pathwren · q 100%
Agent Economy Index
Independent daily measurement of the machine-customer economy since 2026-09-29: x402 Bazaar size, sellers, calls, payers, prices, concentrat
Agent Exchange · q 80%
fresh-feeds live
Continuously-maintained, machine-readable data + trust feeds for AI agents: the MCP server registry (deduped, quality-scored) and the x402 s
FOOM — foomworks · q 100%
crosscheck live
Independent checks for agents, paid per call in USDC over x402 (a2a-x402 extension). check reviews a draft before a human sees it; accept ch
crosscheck · q 100%
Warrantee Agent Concierge
Public read-only concierge for evidence-backed questions about Warrantee plans, warranty operations, seller onboarding, API / CLI / MCP inte
Warrantee · q 90%
Meta Agent Tools live
Find MCP servers, skills, plugins and OKF knowledge bundles for your task. Compare sources and connections. Free to browse, to submit and to
Meta Agent Tools · q 100%

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
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/rattlesnakesbymail.com.svg)](https://agenstry.com/agents/rattlesnakesbymail.com)
[![Verified Business](https://agenstry.com/badge/rattlesnakesbymail.com/identity.svg)](https://agenstry.com/agents/rattlesnakesbymail.com)
[![Uptime](https://agenstry.com/badge/rattlesnakesbymail.com/uptime.svg)](https://agenstry.com/agents/rattlesnakesbymail.com)
[![A2A version](https://agenstry.com/badge/rattlesnakesbymail.com/protocol.svg)](https://agenstry.com/agents/rattlesnakesbymail.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
{
  "name": "Rattlesnakes By Mail",
  "description": "A public record of documented and observed behaviour of AI crawlers, fetchers and search bots. Every claim carries a vendor quote, a date and a source URL. Dataset published under CC BY 4.0.",
  "url": "https://rattlesnakesbymail.com",
  "provider": {
    "organization": "Benes the Menace",
    "url": "https://benesthemenace.com/"
  },
  "version": "0.1.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json",
    "text/markdown"
  ],
  "skills": [
    {
      "id": "lookup_crawler",
      "name": "Look Up A Crawler",
      "description": "Look up a documented crawler on Rattlesnakes By Mail by name, slug, or user-agent string, and return identity fields, current claims, publication dates, and evidence URLs. Use lookup_crawler when the crawler is already named, or when the user agent is already known to belong to a documented crawler.",
      "tags": [
        "mcp",
        "read"
      ]
    },
    {
      "id": "identify_user_agent",
      "name": "Identify A User Agent",
      "description": "Match an unrecognized raw User-Agent header against the crawlers documented on Rattlesnakes By Mail, and return the matched crawler plus instructions for verifying the request. Use identify_user_agent when the crawler behind the User-Agent header is not yet known.",
      "tags": [
        "mcp",
        "read"
      ]
    },
    {
      "id": "list_changes",
      "name": "List Changes",
      "description": "List recorded changes to claims on Rattlesnakes By Mail, newest first, with the change date and the affected crawler. Filter by date with since, by crawler with entity, or by both. Use list_changes to detect crawler policy updates published after a given date.",
      "tags": [
        "mcp",
        "read"
      ]
    },
    {
      "id": "ask",
      "name": "Ask A Question",
      "description": "Match a free-text question against the claims published on Rattlesnakes By Mail, and return the matching claims, or no match when no published claim covers the question. Every question sent to ask is recorded, and a recorded question may be published on the public questions page at Rattlesnakes By Mail. Do not send private or identifying text to ask.",
      "tags": [
        "mcp",
        "read"
      ]
    },
    {
      "id": "submit_note",
      "name": "Submit A Note",
      "description": "Submit a correction or note about a claim, an entity, or a question on Rattlesnakes By Mail. Requires a client token issued out of band by the publisher. Every note is stored as pending, and an editor reviews every pending note before publication.",
      "tags": [
        "mcp",
        "read"
      ]
    }
  ],
  "mcp": {
    "endpoint": "https://rattlesnakesbymail.com/mcp",
    "transport": "streamable-http",
    "serverManifest": "https://rattlesnakesbymail.com/.well-known/mcp/server.json"
  },
  "links": {
    "data": "https://rattlesnakesbymail.com/data",
    "changes": "https://rattlesnakesbymail.com/changes.xml",
    "sitemap": "https://rattlesnakesbymail.com/sitemap.xml",
    "sitemapMachine": "https://rattlesnakesbymail.com/sitemap-machine.xml",
    "llms": "https://rattlesnakesbymail.com/llms.txt",
    "mcpManifest": "https://rattlesnakesbymail.com/.well-known/mcp/server.json"
  }
}