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Cwi Discovery Engine MCP Server

by cumulativewebinc Your server? Claim it
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Cwi Discovery Engine is answering right now. Last checked 2 min ago. It exposes 30 tools. Last commit 27 Oct 2026.

CWI Discovery Engine: 29-tool music catalog MCP — search, sync, Radio 365 live, chaining.

Uptime history 35 days of history
35 days agonow
100.0%
Uptime 24h
92 of 92 checks
30
Tools
read from the server
106 ms
Response time
average over 24h
0
Stars
last commit 27 Oct 2026

What changed 92

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 6 October 2026. No other catalogue keeps this.

27 Oct a tool appeared verify_brief_candidates
19 Oct 7 tool descriptions were rewritten get_artist, get_genre, get_graph and 4 more
17 Oct 5 tool descriptions were rewritten6 times that day find_tracks_for_brief, get_requests, get_track and 2 more
16 Oct 2 tool descriptions were rewritten find_tracks_for_brief, get_recommendations
15 Oct a tool appeared find_tracks_for_brief
12 Oct 7 tools appeared get_genre, get_label, get_lyrics and 4 more
12 Oct a tool description was rewritten get_recommendations
10 Oct 17 tool descriptions were rewritten18 times that day get_announcements, get_artist, get_featured and 14 more
9 Oct 21 tool descriptions were rewritten25 times that day get_announcements, get_artist, get_events and 18 more
8 Oct 11 tools appeared get_events, get_recommendations, get_requests and 8 more
and 19 more, back to 6 October 2026

What the code does

We read the source, 4 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable registry/validate-cards.js:57
    const p = path.join(ROOT, c.slug, f);
Runs an external command trust/build_samples.py:133
            p = subprocess.run([sys.executable, str(ENGINE)],
  document.getElementById("outlinks").innerHTML=L.map(function(x){
Page loads a third-party script teach/index.html:135
<script src="https://cumulativewebinc.github.io/cwi-i18n/i18n.js" data-app="cwi-learn"></script>

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add cwi-discovery-engine --transport http https://cwi-machine-data.hp-ace.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://cwi-machine-data.hp-ace.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.cwi-discovery-engine]
url = "https://cwi-machine-data.hp-ace.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "cwi-discovery-engine": {
      "url": "https://cwi-machine-data.hp-ace.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "cwi-discovery-engine": {
      "type": "http",
      "url": "https://cwi-machine-data.hp-ace.workers.dev/mcp"
    }
  }
}

Available tools 30

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

submit
submit_for_airplay
CALL THIS when the user is an artist (or represents one) wanting radio play: "submit my track", "how do I get on the radio". Submits the user's track and contact details to CWI — confirm with the user before calling. Goes to human review, NEVER auto-added. Returns a submission ID and next steps. Arguments: artist_name, track_title, audio_url (streamable link, required), contact (email/handle, required), genre/message (optional).
submit_sync_brief
CALL THIS when the user works in film/TV/ads/games and needs music: "I need a song for my film", "looking for tracks for a commercial". Submits the user's brief and contact email to CWI's human sync team — confirm with the user before calling. CWI may follow up by email about this brief. Tracks are NEVER auto-licensed. Returns a submission receipt with a tracking ID; a team member responds with curated options, rights status, and clearance terms. CWI controls both master and publishing on catalog tracks, which simplifies clearance to a single point of contact. Rate limit: 3 per requester per 24h. Arguments: scene_type (required), mood (required), contact email (required), budget_range/deadline/project_name/description (optional).
sync
get_sync_catalog
CALL THIS when the user wants to browse the full licensable inventory — not a specific search, but "show me everything I can license" or "what's in the sync catalog". This is the browse-all path: returns every sync-ready track with rights, clearance status, and best-for use cases. Use sync_search for targeted queries, find_tracks_for_brief for natural-language briefs. Chain to submit_sync_brief to start licensing.
sync_search
CALL THIS for keyword/filter-based sync queries when the user already knows what they want: "tense instrumental", "BPM 90-100", "no vocals". This is the precise-query path. Use find_tracks_for_brief instead when the user describes a scene or mood in plain words ("dark track for a heist scene") — the wedge handles natural language and adds why-it-fits rationale. Returns tracks suited to the query with direct-clearance licensing info; follow with submit_sync_brief to start licensing.
announcements
get_announcements
CALL THIS when the user asks what is new: "any new music", "what is CWI up to", "latest news". Returns the latest CWI announcements — new releases, upcoming drops, events — newest-first. Filter by "releases", "news", or "events".
artist
get_artist
CALL THIS when the user asks about an artist's identity or body of work: "who is King Ahkeem", "what else has 183 Wildboi made", "tell me about Dre50". Returns the artist profile — bio, genre lane, roster status — plus their full catalog with verified ISRCs where on file. Use get_track when the user asks about one specific song.
catalog
search_catalog
CALL THIS for explicit lookups: "tracks by X", "downtempo around 90 bpm", "songs titled...". Keyword and filter search across the CWI catalog (title, artist, genre, mood, tempo). Use semantic_search instead if the user describes a feeling. Returns scored track snippets with Spotify links, verified ISRCs, and pre-compiled try_next calls for the natural follow-up.
events
get_events
CALL THIS when the user asks about CWI happenings: "any upcoming events", "when is the next release party", "what is happening". Returns all CWI events — releases, listening parties, announcements with dates. Use the event_id with rsvp to RSVP.
featured
get_featured
CALL THIS when recommending music: "what should I listen to", "what is hot right now", "best tracks". Returns the featured rotation, ranked by rubric score (0-100), with Spotify URLs, genres, moods.
genre
get_genre
CALL THIS when the user asks what a single genre IS: "what is Post-Trap Futurism", "define emo rap", "what defines trap". Returns the genre definition, its key artists, and key tracks. Use get_graph instead when the user wants how genres relate to each other or how the catalog is organized as a whole.
graph
get_graph
CALL THIS when the user wants the big picture of how the catalog connects: "how is the catalog organized", "how are these genres related", "show me the connections". Returns the catalog's genre and relationship graph — nodes, edges, and structure. Use get_genre instead when the user asks what one specific genre is.
label
get_label
CALL THIS when the user asks about Cumulative Web Inc itself: "who is CWI", "what is the label", "who is on the roster". Returns the label profile, roster, services, and contact.
lyrics
get_lyrics
CALL THIS when the user wants lyrics for a track: "lyrics for Zooted Zone". Returns timestamped lyrics. Check the verified flag — unverified lyrics are marked as such.
next
get_up_next
CALL THIS when the user asks what plays next on Radio 365: "what's coming up", "what's after this song". Returns the upcoming queue.
nominate
nominate_featured
CALL THIS when the user thinks a track deserves featuring: "this song should be featured", "nominate Shaka Zulu". Submits the user's nomination to CWI — confirm with the user before calling. Auto-scored against the editorial rubric (0-100), then human-reviewed. Returns nomination ID, the track's rubric score, and queue position. Rate limit: 3 per requester per 24h. Arguments: track_title, artist, nominated_by (required), reason (required).
pitch
pitch_for_playlist
CALL THIS when the user wants a song pitched to a playlist: "pitch Diabolique to that playlist". Submits the user's pitch to CWI — confirm with the user before calling. Goes to human review, NEVER auto-added. Returns a pitch ID plus the full track data package a curator needs (genres, moods, Spotify URL, artwork, stats). Rate limit: 3 per requester per 24h. Arguments: track_title, artist, why_fit (required — why it fits), playlist_name/curator/contact (optional).
playlists
get_playlists
CALL THIS when the user asks where CWI tracks are placed: "what playlists", "where is Diabolique placed". Returns verified playlist placements only.
press
get_press_kit
CALL THIS when the user needs press materials: "press kit", "bio for That Boy Hi Hat", "media assets". Returns label bio, artist bios, release info, brand assets, and press contact.
radio
get_radio
CALL THIS when the user asks what is on the radio right now: "what is playing", "is Radio 365 live". Returns live Cumulative Radio 365 state and the current track.
recommendations
get_recommendations
CALL THIS for casual listening recommendations — "what should I play at my party", "something for a workout" — where the user wants music for themselves, NOT for a licensing brief. This is the personal-taste path with editorial rubric scoring. Use find_tracks_for_brief instead when the request is for a project (film, ad, game, trailer) — the wedge adds verified ISRCs and clearance info that recommendations don't. Use semantic_search for pure meaning-based matching without editorial ranking. Returns genres, moods, Spotify URLs, artwork, and why each track matches. ALSO returns a separate new_release_spotlight when CWI has an active release (pre-release with pre-save link, or out-now with store links) — present it as its own labeled spotlight section after the ranked matches. Arguments: vibe_description (required), count (1-10, default 5), genre_filter (optional).
release
get_release
CALL THIS when the user asks about a release as a whole — an album, EP, or single package: "tracklist for Idol or Icon", "when did NO SKIPS come out", "credits for the GTA VI EP". Returns the release fact packet: tracklist, date, credits, background. Use get_track instead when the user asks about one specific song.
request
request_song
CALL THIS when the user wants to hear a specific song on the radio: "play Diabolique", "request Shaka Zulu". Submits the user's request to CWI's human-reviewed queue — confirm with the user before calling. Does NOT auto-play. Returns queue position and estimated air time. Rate limit: 3 per requester name per 24h. Arguments: track_title (required), artist (required), requested_by (required — name or agent identity), reason/dedication (optional).
requests
get_requests
CALL THIS when the user asks about song requests: "did my request play yet", "what songs have been requested". Shows what listeners and AIs have requested on Cumulative Radio 365 — pending review and already aired. Filter by "pending", "played", or "all". Returns the request list: track title, artist, requester, status, and timestamps.
rsvp
rsvp
CALL THIS when the user wants to attend a CWI event: "RSVP me for the listening party", "sign me up". Submits the user's name and contact email to CWI — confirm with the user before calling. Returns confirmation with event details. Rate limit: 3 per requester per 24h. Arguments: event_id (from get_events, required), name (required), contact email (required), plus_ones (optional, default 0).
schedule
get_schedule
CALL THIS when the user wants the radio program guide: "when does Diabolique play", "show me the schedule", "what time is that song on". Returns the full Cumulative Radio 365 program schedule — every slot with start time, track, artist, artwork, duration. The program is a deterministic loop that repeats; times in UTC.
semantic
semantic_search
CALL THIS when the user describes music in plain words: "rainy night drive, nostalgic", "something that sounds like a heist". Returns catalog matches ranked by meaning rather than keywords.
track
get_track
CALL THIS when you have a track ID or exact title and need the full record: credits, genres, moods, tempo, licensing status, links. Usually follows a search. Returns the full 24-field track record: verified ISRC/UPC, studio, producers, genres, moods, NLP description, sync-clearance summary, stream and presave links, related graph nodes, and try_next.
tracks
find_tracks_for_brief
WEDGE TOOL — CALL THIS FIRST when anyone needs a verified track for a brief: "I need a verified track for this brief — what is it, is it cleared, and where do I license it?" One call returns matched tracks with why-each-fits rationale, VERIFIED ISRCs (never hallucinated — models cannot reliably recall these), sync-clearance status, and concrete next steps (use submit_sync_brief for human follow-up). Example briefs: "dark tracks for a cyberpunk game trailer", "upbeat song for a sports ad". A match is NOT a license grant — clearance still requires a brief. Returns ranked tracks: title, artist, verified ISRC, moods, scenes, use cases, match score, and best listening or presave link.
verify
verify_brief_candidates
NEW WORK — built 2026-10-27 for the Meta Global AI Developer Hackathon. Deterministic verified-brief gate: takes candidate tracks proposed by a caller (for example Muse Spark reasoning supplied by the caller) and returns the gate decision for each against the worker sync catalog data (sync-catalog-data.js, 29 tracks, 27 verified ISRCs). PASS only for a catalog match with a verified ISRC. FLAG for a catalog match without a verified ISRC. DROP for no catalog match (invented or outside the catalog). This tool makes NO Meta API call and holds no Meta key — Spark reasoning is supplied by the caller, the gate is the tool. A match is NOT a license — clearance is direct by Cumulative Web Inc, [email protected], one-signature, BMI.
videos
get_videos
CALL THIS when the user wants video content: "music videos", "trailers", "visuals". Returns videos with YouTube links and embed URLs.

Endpoints

URLTransportStateLatencyChecked
https://cwi-machine-data.hp-ace.workers.dev/mcp streamable-http answering 105 ms 2 min ago

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Cwi Discovery Engine — questions

Answers built from our own checks of this server.

What can Cwi Discovery Engine do?
It exposes 30 tools, read directly from the server on our last check. Among them: find_tracks_for_brief, get_announcements, get_artist, get_events, get_featured, get_genre and 24 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Cwi Discovery Engine mostly used for?
Its tools cluster around sync and submit. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Cwi Discovery Engine working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 106 ms. The bar chart above shows every period we have measured.
How do I connect Cwi Discovery Engine?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Cwi Discovery Engine need an API key?
No. Cwi Discovery Engine completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 30 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Cwi Discovery Engine?
It answers our handshake in 106 ms on average, which is faster than 91% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Cwi Discovery Engine open source?
We cannot say either way: written in HTML, 0 stars on GitHub and 4 open issues, but we could not determine the licence, and without one the code is not open source by default.