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📊 Intel view 📋 Audit JSON 🔄 Changelog
70
A2A live JSON-RPC A2A 0.3.0 v0.1.0

Machine Library

machinelibrary.ai · Space Frontiers

A2A research endpoint. Send JSON-RPC requests using HTTP POST. For research in your browser, visit https://machinelibrary.ai/search.

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Verify the domain machinelibrary.ai 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.
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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. 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
70/100
grade C · 9 criteria
Uptime
100.0%
77 direct probes · 30d
~93 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 70/100
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 (answers in ~93 ms).
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).
pass Uptime track record 15/15
77/77 probes succeeded (100% uptime).
partial Skill declaration 6/10
Declares 1 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags` — `description` and `tags` are REQUIRED on AgentSkill since A2A v1.0, and tags are what discovery filters match on. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: Space Frontiers (https://machinelibrary.ai). 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.

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

10 snapshots Every change to agent-card.json
Captured Hash
2026-10-05 20:50:59 current d72ec2ae9a52… view →
2026-10-05 08:41:59 d72ec2ae9a52… view →
2026-10-04 08:13:56 d72ec2ae9a52… view →
2026-10-03 19:38:12 d72ec2ae9a52… view →
2026-10-03 12:52:28 d72ec2ae9a52… view →
2026-10-03 06:28:59 d72ec2ae9a52… view →
2026-10-03 00:20:49 d72ec2ae9a52… view →
2026-10-02 04:34:54 d72ec2ae9a52… view →
2026-10-01 08:35:44 d72ec2ae9a52… view →
2026-09-27 15:12:03 d72ec2ae9a52… view →
Showing latest 10. Older snapshots available via GET /api/agents/machinelibrary.ai/snapshots.
Uptime
100.0%
77 direct probes · 30d
Response
69ms
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Try it

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Endpoints

Pricing MPP per call USD Self-declared · MPP manifest Dispute or improve this rating
From $5.0000 per call
Endpoint Price Currency
https://machinelibrary.ai/v2/payments/mpp/top-up 5.0 USD
Try it ↗ Opens the operator's documentation in a new tab.
Agent cardhttps://machinelibrary.ai/a2a
Providerhttps://machinelibrary.ai
Docshttps://api.machinelibrary.ai/auth.md
Discovered via
registry manifests a2aregistry recrawl_hot

Skills · 1 declared · mapped to canonical taxonomy

Machine Library

A2A research endpoint. Send JSON-RPC requests using HTTP POST. For research in your browser, visit https://machinelibrary.ai/search.

orphan: no canonical match yet

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-08 15:32:47 200 ✓ 69ms
2026-10-07 18:27:33 200 ✓ 73ms
2026-10-07 11:37:42 200 ✓ 197ms
2026-10-07 01:00:40 200 ✓ 171ms
2026-10-06 12:49:19 200 ✓ 113ms
2026-10-05 20:50:59 200 ✓ 178ms
2026-10-05 08:41:59 200 ✓ 174ms
2026-10-04 08:13:56 200 ✓ 187ms
2026-10-03 19:38:12 200 ✓ 174ms
2026-10-03 12:52:28 200 ✓ 182ms

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

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": "Machine Library",
  "description": "A2A research endpoint. Send JSON-RPC requests using HTTP POST. For research in your browser, visit https://machinelibrary.ai/search.",
  "protocolVersion": "0.3.0",
  "url": "https://machinelibrary.ai/a2a",
  "agentCard": "https://machinelibrary.ai/.well-known/agent-card.json",
  "documentationUrl": "https://api.machinelibrary.ai/auth.md",
  "methods": [
    "message/send",
    "message/stream",
    "tasks/get",
    "tasks/cancel"
  ],
  "authentication": "Research requires Authorization: Bearer <token> or X-Api-Key and prepaid credits. Get a key at https://machinelibrary.ai/keys.",
  "example": {
    "jsonrpc": "2.0",
    "id": "example-request",
    "method": "message/send",
    "params": {
      "message": {
        "kind": "message",
        "messageId": "example-message",
        "role": "user",
        "parts": [
          {
            "kind": "text",
            "text": "How do I authenticate?"
          }
        ]
      }
    }
  }
}