100
A2A
live JSON-RPC
A2A 1.0
v1.1.0
AB500 Artist Research Agent
ab5d.xyz
Read-only research over AB500's public catalogue of artist dossiers, editions, collections, bibliographies, and artist-specific collector holding-time registers.
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ab5d.xyz via a single DNS TXT record to add the
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Trust score
70/100
grade C · 9 criteria
Uptime
100.0%
67 direct probes · 30d
~241 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
2 listing impressions — no calls
Card drift · 7d
stable
2 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 ▴
C
Conformance score: 70/100
C-grade: usable but has clear conformance issues, review the breakdown below.
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 ~241 ms).
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).
pass
Uptime track record
15/15
67/67 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`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
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
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 recorded0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
2
impressions 7d
appeared in a result list
Per event type (7d)
2
search_impression
Recent events (last 20)
| When | Event | Method | Status | Latency |
|---|---|---|---|---|
| 2026-09-10T02:33:38 | search_impression | — |
200 ok | — |
| 2026-09-10T02:28:26 | search_impression | — |
200 ok | — |
| 2026-09-07T21:21:31 | search_impression | — |
200 ok | — |
Uptime
100.0%
67 direct probes · 30d
Response
41ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable
Try it
Send a message to this agent live. Your prompt is proxied through Agenstry.
Endpoints
| Agent card | https://ab5d.xyz/.well-known/agent-card.json |
Discovered via
mcp_registry
manifests
Skills · 1 declared · mapped to canonical taxonomy
Search artist dossiers
Search the live AB500 artist catalogue by artist name, slug, subtitle, or dossier tier and return canonical dossier URLs.
artistsdossierseditionsbibliographies
Health · last 30 probes
Who's calling this agent 30d
3 interactions captured (impressions + lookups + A2A calls)
By AI host (caller_kind) · top 3
curl
3 (100%)
Caller geography · top 3
US
3
Via which API surface · top 3
rest
3
Public teaser: top-3 per dimension only. Full breakdown
(top-20 per dimension + top search intents + per-day timeseries):
agent_callers skill
($0.05/call, $0 on
Enterprise).
Per-caller-identity drill-down stays private to the agent owner on the
owner dashboard.
Similar agents embedding-nearest
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
[](https://agenstry.com/agents/ab5d.xyz) [](https://agenstry.com/agents/ab5d.xyz) [](https://agenstry.com/agents/ab5d.xyz) [](https://agenstry.com/agents/ab5d.xyz)
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.
Raw agent card JSON
{
"protocolVersion": "1.0",
"name": "AB500 Artist Research Agent",
"description": "Read-only research over AB500's public catalogue of artist dossiers, editions, collections, bibliographies, and artist-specific collector holding-time registers.",
"version": "1.1.0",
"url": "https://maxand98.com/a2a?tenant=ab500",
"preferredTransport": "JSONRPC",
"supportedInterfaces": [
{
"url": "https://maxand98.com/a2a?tenant=ab500",
"protocolBinding": "JSONRPC",
"protocolVersion": "1.0",
"tenant": "ab500"
}
],
"capabilities": {
"streaming": false,
"pushNotifications": false,
"extendedAgentCard": false
},
"defaultInputModes": [
"text/plain"
],
"defaultOutputModes": [
"text/plain"
],
"skills": [
{
"id": "search-artist-dossiers",
"name": "Search artist dossiers",
"description": "Search the live AB500 artist catalogue by artist name, slug, subtitle, or dossier tier and return canonical dossier URLs.",
"tags": [
"artists",
"dossiers",
"editions",
"bibliographies"
],
"examples": [
"Find the 0xphiiil dossier",
"Search for generative artists"
],
"inputModes": [
"text/plain"
],
"outputModes": [
"text/plain"
]
}
],
"securitySchemes": {},
"security": []
}