MCP Imslp runs on your own machine — the client starts it, so there is no endpoint to ping. 47 installs a week from npm. Last commit 21 Sep 2026.
Read IMSLP, the Petrucci Music Library: works, scores, editions, copyright. No API key.
Today is the operative word: we check MCP Imslp every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-imslp -- npx -y mcp-imslp
{
"mcpServers": {
"mcp-imslp": {
"args": [
"-y",
"mcp-imslp"
],
"command": "npx"
}
}
}
[mcp_servers.mcp-imslp]
command = "npx"
args = ["-y", "mcp-imslp"]
{
"mcpServers": {
"mcp-imslp": {
"args": [
"-y",
"mcp-imslp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"mcp-imslp": {
"args": [
"-y",
"mcp-imslp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
IMSLP_USER_AGENT (Your application's name. The project identity is appended to it.), IMSLP_MIN_INTERVAL_MS (Minimum milliseconds between requests. Default 2500, floor 2000.), IMSLP_TIMEOUT_MS (Per-request timeout in milliseconds. Default 30000.), IMSLP_MAX_RETRIES (Retries on transient failures. Default 3.), IMSLP_CACHE_TTL_MS (In-memory cache lifetime in milliseconds. Default 900000.), IMSLP_CACHE_MAX_ENTRIES (Maximum entries kept in the in-memory cache. Default 100.), IMSLP_LOG_LEVEL (silent, error, info or debug, on stderr. Default error.).
The author declared them in the registry entry; get the values from the project itself.
Search the Library of Congress collections. No key required.
Open Library search, works, authors, editions, and ISBN.
Search the NASA image and video library. No key required.
Search the Anime News Network encyclopedia and read its news wire. No API key.
Search Metacritic films, shows and games, read scores and critic reviews. No API key.
Synthetic EHR: medications, labs, conditions, allergies, immunizations, FHIR R4. No API key.
US public libraries and branches near any address, with collections from the IMLS survey
US college data from the College Scorecard API. No key required.
Answers built from our own checks of this server.