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📊 Intel view 📋 Audit JSON 🔄 Changelog
49
A2A live JSON-RPC A2A 0.3.0 v0.1.0

CorpusFetch

corpusfetch.com · CorpusFetch

A fetch layer for concluded experience outside a model's weights. Given a question already joined to an experience, it returns what was encountered, what was learned, and what was concluded. It does not answer the question, retrain the model, or replace the model's reasoning. The same question returns the same concluded experience; if a later experience changes the conclusion, that later experience is the one returned.

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Trust score
49/100
grade D · 9 criteria
Uptime
not measured
no direct probes in 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: 49/100
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).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe.
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).
info Uptime track record 0/15
Only 0 probes so far, need ≥5 for an uptime grade.
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 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: CorpusFetch (https://corpusfetch.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.

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
2026-10-09 14:20:42 current 40b242801bc0… view →
Uptime
not measured
0 direct probes · 30d
Response
—
no direct probe retained
Skills
1
declared
Streaming
—
SSE-capable

Try it

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Endpoints

Agent cardhttps://corpusfetch.com/
Providerhttps://corpusfetch.com/
Docshttps://corpusfetch.com/
Discovered via
a2aregistry

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Embed your Agenstry badge

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/corpusfetch.com.svg)](https://agenstry.com/agents/corpusfetch.com)
[![Verified Business](https://agenstry.com/badge/corpusfetch.com/identity.svg)](https://agenstry.com/agents/corpusfetch.com)
[![Uptime](https://agenstry.com/badge/corpusfetch.com/uptime.svg)](https://agenstry.com/agents/corpusfetch.com)
[![A2A version](https://agenstry.com/badge/corpusfetch.com/protocol.svg)](https://agenstry.com/agents/corpusfetch.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": "CorpusFetch",
  "url": "https://corpusfetch.com/",
  "description": "A fetch layer for concluded experience outside a model's weights. Given a question already joined to an experience, it returns what was encountered, what was learned, and what was concluded. It does not answer the question, retrain the model, or replace the model's reasoning. The same question returns the same concluded experience; if a later experience changes the conclusion, that later experience is the one returned.",
  "version": "0.1.0",
  "documentationUrl": "https://corpusfetch.com/",
  "iconUrl": null,
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "fetch-experience",
      "name": "Fetch concluded experience",
      "description": "Return the experience joined to a question: what was encountered, what was learned, and what was concluded. A question returns an experience only when it was already joined to that experience. Neighboring experiences are not supplied for the model to judge. CorpusFetch does not answer the question.",
      "tags": [
        "experience",
        "memory",
        "fetch",
        "conclusion",
        "corpus"
      ],
      "examples": [
        "Fetch the concluded experience for this question."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ]
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": true,
    "extensions": null
  },
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "CorpusFetch",
    "url": "https://corpusfetch.com/"
  }
}