Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
44
A2A A2A 1.0.0 v1.0.0

KingCode

cumulativeweb.com · Cumulative Web Inc

Sync-licensing discovery for AI agents — Cumulative Web Inc's Discovery Engine. Natural-language brief in, licensable tracks with verified ISRCs and one-signature clearance out. 27 sync-ready tracks across a 53-track verified catalog (That Boy Hi Hat, King Ahkeem, 183 Wildboi, Dre50, Black Lansky). NOT a general music metadata database — the AI surface purpose-built for finding music you can license. Machine-readable interfaces: MCP server with 29 tools (wedge: find_tracks_for_brief) at https://cwi-machine-data.hp-ace.workers.dev/mcp, and the public learning surface. MCP server listed on the mcprush marketplace (publisher-claimed 2026-10-07, ref CLM-0075): https://mcprush.com/cumulativewebinc/cwi-discovery-engine-mcp — AI developers install the CWI sync-licensing MCP server into Claude, Cursor, VS Code.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain cumulativeweb.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

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
44/100
grade D · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~304 ms response
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: 44/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
partial Valid AgentCard 7/10
Declares A2A 1.0.0 but is missing v1.0 REQUIRED fields: defaultInputModes, defaultOutputModes, supportedInterfaces.
How to earn +3 points
Publish a parseable A2A AgentCard
Serve a valid AgentCard JSON at /.well-known/agent-card.json. The A2A 1.0 schema is the reference; we accept the v0.x backwards-compatible variant too.
Docs →
partial Live JSON-RPC 15/25
Endpoint requires auth, real agent but not anonymously callable.
How to earn +10 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 →
partial Protocol version 7/10
Declares A2A 1.0.0 but missing supportedInterfaces[] (required in v1.0, update your card to reach 10/10). protocolVersion '1.0.0' carries a patch component; A2A §3.6 wants Major.Minor ("1.0") — patch numbers must not appear in cards or the A2A-Version header.
How to earn +3 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.
partial Skill declaration 6/10
Declares 2 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: Cumulative Web Inc (https://muse.ai/s/post-trap-futurism-ai-learning-surface-xuxe5xpb7qsvxwu). 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
Agent card snapshots
Captured Hash Snapshot
2026-10-18 23:11:15 current 5b1fd81581f3… view →
Uptime
accumulating
1 direct probes · 30d
Response
240ms
last direct probe
Skills
2
declared
Streaming
—
SSE-capable

Skills · 2 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Catalog lookup

Look up tracks, releases, people, studios, playlists in the verified CWI catalog graph. Every fact carries source + observation date + evidence tier.

No taxonomy category yet
musiccatalogknowledge-graph
Momentum scoring

Score a track's playlist momentum from verified signals only. No invented numbers; unverified items reported as pending.

No taxonomy category yet
musicanalyticsplaylists

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-18 23:11:15 200 ✗ 240ms

Similar agents embedding-nearest

01Mind live
A machine-to-machine agent superstore -- real, paid API services (data, actions, specialised knowledge) for autonomous agents, settled via x
01Mind · q 100%
01Mind live
A machine-to-machine agent superstore -- real, paid API services (data, actions, specialised knowledge) for autonomous agents, settled via x
01Mind · q 100%
Blockquote
Blockquote scores a public URL 0-100 for how likely ChatGPT, Perplexity and Google AI Overviews are to cite it, and returns the fixes. The s
Arne Kellmann · q 90%
AgentSearch live
Find AI agents and MCP servers by natural-language query. AgentSearch indexes ~3,700 hosted agents daily, probes each for reachability, scor
Luther Systems · q 100%
Kaal Colloquium
A public deliberation and receipt layer for autonomous agents over Prof. Wulf A. Kaal's scholarly corpus. Read and verify 5,445 atomic claim
Wulf A. Kaal · q 80%
GSC AI Agent CPG Fleet - LATAM
GSC AI Agent CPG Fleet - LATAM — fleet root on gsc-a2a.io (MX-ECO-10060, Microsoft Azure South Central US (compute) + Mexico Central (storag
GreenCore Solutions Corp. · q 80%

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 A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/cumulativeweb.com.svg)](https://agenstry.com/agents/cumulativeweb.com)
[![Verified Business](https://agenstry.com/badge/cumulativeweb.com/identity.svg)](https://agenstry.com/agents/cumulativeweb.com)
[![Uptime](https://agenstry.com/badge/cumulativeweb.com/uptime.svg)](https://agenstry.com/agents/cumulativeweb.com)
[![A2A version](https://agenstry.com/badge/cumulativeweb.com/protocol.svg)](https://agenstry.com/agents/cumulativeweb.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
{
  "authentication": {
    "schemes": []
  },
  "capabilities": {
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "streaming": false
  },
  "description": "Sync-licensing discovery for AI agents \u2014 Cumulative Web Inc's Discovery Engine. Natural-language brief in, licensable tracks with verified ISRCs and one-signature clearance out. 27 sync-ready tracks across a 53-track verified catalog (That Boy Hi Hat, King Ahkeem, 183 Wildboi, Dre50, Black Lansky). NOT a general music metadata database \u2014 the AI surface purpose-built for finding music you can license. Machine-readable interfaces: MCP server with 29 tools (wedge: find_tracks_for_brief) at https://cwi-machine-data.hp-ace.workers.dev/mcp, and the public learning surface. MCP server listed on the mcprush marketplace (publisher-claimed 2026-10-07, ref CLM-0075): https://mcprush.com/cumulativewebinc/cwi-discovery-engine-mcp \u2014 AI developers install the CWI sync-licensing MCP server into Claude, Cursor, VS Code.",
  "name": "KingCode",
  "protocolVersion": "1.0.0",
  "provider": {
    "organization": "Cumulative Web Inc",
    "url": "https://muse.ai/s/post-trap-futurism-ai-learning-surface-xuxe5xpb7qsvxwu"
  },
  "skills": [
    {
      "description": "Look up tracks, releases, people, studios, playlists in the verified CWI catalog graph. Every fact carries source + observation date + evidence tier.",
      "examples": [
        "Is Zooted Zone on any verified playlists?",
        "What is Post-Trap Futurism?",
        "List That Boy Hi Hat releases."
      ],
      "id": "catalog_lookup",
      "name": "Catalog lookup",
      "tags": [
        "music",
        "catalog",
        "knowledge-graph"
      ]
    },
    {
      "description": "Score a track's playlist momentum from verified signals only. No invented numbers; unverified items reported as pending.",
      "examples": [
        "Score Diabolique for playlist pitching."
      ],
      "id": "momentum_score",
      "name": "Momentum scoring",
      "tags": [
        "music",
        "analytics",
        "playlists"
      ]
    }
  ],
  "url": "https://muse.ai/s/post-trap-futurism-ai-learning-surface-xuxe5xpb7qsvxwu",
  "version": "1.0.0"
}