Data Breach Search Engine & Leak Checker MCP server

• Registry namecc.checkleaked/spotify-dataverified in the MCP registry

The registry name sits under checkleaked.cc. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-11-01
• Tools12
• Server calls itselfspotify-data
• Server version0.1.0
• Protocol version2025-06-18

On 2026-11-01 the server answered initialize and tools/list without a sign-in. First answer in 299 ms.

• Its tools do none of the product's use cases we checked: check whether an email address appears in known breaches; see which passwords tied to an account have leaked; search leaked records by company domain.
• Checked on 3 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
• What an agent can do with it0 of 3 use cases
• Answeredmeasuring3 of the 7 daily checks it takes to print a share
• Median first answer304 ms
• Space in an agent's context≈ 2,060 tokensthe definitions of all its tools (13), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 13 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• search

  Search the Spotify catalog by name to find ids for the other tools. `type` picks what to search: tracks, artists, albums or playlists. Returns up to `limit` hits (max 20) with id, name, key fields and open.spotify.com URL. For track…

• get_tracks

  Track details for up to 50 tracks in one call: name, artists, album, release date, duration, explicit flag, popularity, ISRC and (by default) lifetime play count. include_insights adds genres, moods, activities, BPM, credits, lyrics flag…

• get_track_play_count

  Lifetime Spotify play counts (streams) for up to 50 tracks in one call, with track name, artists and release date. The fastest way to compare streams. A play count of 0 means fewer than 1,000 plays.

• get_track_insights

  Genres, moods and activities (with Spotify's 0-1 weights), tempo in BPM, credits (writers, producers), lyrics flag and vocal languages for up to 50 tracks.

• get_artists_stats

  Monthly listeners, followers, world rank, popularity, genres and top 5 cities (with listener counts) for up to 50 artists in one call.

• get_artist_overview

  One artist's profile: monthly listeners, followers, world rank, top cities, top tracks with play counts, latest release, discography counts, related artists, biography and social links.

• get_artist_insights

  An artist's sound profile from their top tracks: genres, moods and activities with 0-1 weights, and tempo (average, min, max BPM). Up to 20 artists per call.

• get_related_artists

  Artists Spotify lists as related to ("Fans also like") the given artist.

• get_album

  An album with its track list and (by default) every track's lifetime play count, plus the album total, release date, label, UPC and popularity.

• get_playlist

  A playlist's name, owner, followers and description, plus `limit` tracks (max 100) from `offset` with lifetime play counts. Use next_offset from the answer to page through long playlists (later pages skip the metadata and cost one request).

• get_chart

  Spotify Charts by country: top_tracks (Top 200), viral_tracks (Viral 50, daily only), top_artists or top_albums. Each entry has rank, previous and peak rank, days (or weeks) on the chart, movement and, for top_tracks, the streams in that…

• isrc_lookup

  Find the Spotify track(s) for an ISRC (International Standard Recording Code), e.g. USUG11904206. Returns ids, names, artists, album and release date.