SERVER

Rarefaction

Rank #9,059

io.github.ip2k/rarefaction-lsp-mcp

LSP call graph for coding agents: a symbol's callers, callees, tests and live files in one call.

9 versions
by ip2k (2 servers)View repository ↗
First listed
Oct 14, 2026
Last publish date
Nov 8, 2026
PURPOSE

What you can do with Rarefaction

Rarefaction is a Model Context Protocol (MCP) server published by ip2k. It ranks #9,059 of 176,402 active servers on MCP Toplist. Rarefaction is listed across 2 registries — Official MCP and Glama, with 9 tracked versions. It was first listed on Oct 14, 2026 and most recently updated on Nov 8, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Rarefaction can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Rarefaction

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Nov 14, 2026. Not independently verified by MCP Toplist.

No runtime, credential or payment requirements are recorded for this server beyond the declaration above.

INSTALLATION AND FIRST TASK

Connect Rarefaction and confirm it works

npm package
claude mcp add rarefaction-lsp-mcp -- npx -y rarefaction-lsp-mcp
First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by ip2k
View all ip2k servers →

No task-specific alternatives are catalogued for Rarefactionyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed
Oct 14, 2026
Latest version published
Nov 8, 2026
Version history
9 versions tracked (below)
Requirements evidence
Declared by Glama, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
Profile checked
Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of
Nov 14, 2026
Registry sightings

Do you maintain Rarefaction? to show as its verified maintainer and add your own summary, sign-in details and links. The rest of this page is read from the registry listings and from MCP Toplist's own connection check.

VERSIONS

Available versions (9)

0.2.0 · Oct 14, 20260.2.1 · Oct 14, 20260.2.2 · Oct 15, 20260.3.0 · Oct 15, 20260.3.1 · Oct 17, 20260.4.0 · Oct 21, 20260.4.1 · Oct 21, 20260.4.2 · Oct 21, 20260.4.3 · Nov 8, 2026Oct 14, 2026Nov 8, 2026
VersionPublished
0.4.3Nov 8, 2026
0.4.2Oct 21, 2026
0.4.1Oct 21, 2026
0.4.0Oct 21, 2026
0.3.1Oct 17, 2026
0.3.0Oct 15, 2026
0.2.2Oct 15, 2026
0.2.1Oct 14, 2026
0.2.0Oct 14, 2026
STANDING
#9,059of 176,402 active serversTop 10%

Ranks ahead of 167,343 of 176,402 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

MCP Toplist: Top 10% of 176,402
Markdown
[![MCP Toplist](https://mcptoplist.com/badge/io.github.ip2k%2Frarefaction-lsp-mcp.svg)](https://mcptoplist.com/server/io.github.ip2k%2Frarefaction-lsp-mcp)
HTML
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FAQ

Frequently asked questions

Who maintains Rarefaction?
Rarefaction is maintained by ip2k, which publishes 2 MCP servers (10 total versions) tracked on MCP Toplist.
Is Rarefaction listed on the Official MCP Registry?
Yes — Rarefaction is listed on the Official MCP Registry, alongside Glama.
How many versions does Rarefaction have?
MCP Toplist tracks 9 versions of Rarefaction, most recently published on Nov 8, 2026.
Where can I find the source code for Rarefaction?
The source code for Rarefaction is hosted at github.com/ip2k/rarefaction.
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