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Contribution Exchange logo
Health: ActiveRecent health check succeeded.Last checked 10/8/2026, 2:16:04 AM

Contribution Exchange

User RatingsBe the first to rate and review this MCP server!
View Repository6 GitHub StarsTotal stargazers on GitHub for the source repository (6 stars).Visit Website
developer-toolstoken-metricsleaderboard

The supplied README documents SignalAF/SigRank and a separate sigrank-mcp project, not Contribution Exchange.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment
Target File:~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "contribution-exchange": {
      "command": "npx",
      "args": [
        "-y",
        "sigrank"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Install Directory Badge Claim listing Alternatives💻 More in Developer Tools

Overview

Contribution Exchange MCP server is not documented in the supplied README. The repository instead describes SignalAF and SigRank, a Next.js application for measuring token cascade efficiency and publishing a public leaderboard, while identifying sigrank-mcp as a separate project. Use the referenced repository only for SignalAF/SigRank functionality; the server’s tools, connections, and setup are not established here.

Use cases

•Calculate token cascade efficiency from four token counts
•Inspect the SigRank public leaderboard
•Submit verified runs to SigRank
•Review operator cascade metrics

Key features

•Computes Yield from four token counts
•Measures token cascade efficiency
•Provides a public operator leaderboard
•Supports optional SigRank submission
•Excludes transcript content from measurements

Capabilities & Tool Schemas

Inspect callable tools, capabilities, and parameters exposed to AI agents by Contribution Exchange.

Extracted Tool Capabilities
Computes Yield from four token counts
Measures token cascade efficiency
Provides a public operator leaderboard
Supports optional SigRank submission
Excludes transcript content from measurements

How Contribution Exchange works

What Contribution Exchange MCP server does

The supplied repository material does not describe a product or package named Contribution Exchange. It documents SignalAF and SigRank, an application built around Upsilon, a privacy-preserving measurement engine for AI operator sessions. The documented web application provides a public leaderboard, operator profiles, wiki, account, billing, and ingest surfaces.

The README identifies sigrank-mcp as a separate repository in the same ecosystem. That project is described as a compatibility instrument that extracts four token measurements, computes results locally, and can optionally submit them to SigRank. The README does not provide its MCP tool names, protocol configuration, connection targets, or implementation details. It therefore cannot establish that those capabilities belong to the Contribution Exchange MCP server.

How it works

The documented Upsilon engine accepts four token counts: input, output, cache creation, and cache read. It uses those values to calculate Yield and other cascade measurements, then places operators into signal classes and ranks them by Yield. The stated formula is Υ = (cache_read × output) / input².

The README says session message content is not used and that submissions contain token measurements rather than transcript content. It also describes local calculation and an optional submission flow for the separate sigrank command-line package. These details explain the SignalAF ecosystem, not a confirmed Contribution Exchange implementation.

Limitations and notes

Contribution Exchange MCP server cannot be evaluated from this material as an MCP integration. No supported external service, tool list, transport, configuration schema, environment variables, client compatibility information, or installation instructions are provided for that name. The README also does not show a Contribution Exchange package or identify the repository as its source.

The repository carries an MIT license, but the excerpt does not clarify whether that license applies to a separate Contribution Exchange server. It does show commands for the unrelated sigrank package, including npx sigrank, enrollment, submission, and dry-run inspection. Those commands should not be presented as installation steps for Contribution Exchange MCP server without documentation from the relevant project.

Read the full README →View source on GitHub →

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Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars
6
Stargazers on the source repository.
npm downloads
3.1k
Package downloads in the last 30 days.
Last commit
1d ago
Most recent push to the default branch.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Contribution Exchange

Contribution Exchange is an MCP server that the supplied README does not identify as a documented component of the repository. It names sigrank-mcp as a separate project, but gives no connection details or main MCP tools for Contribution Exchange. Its capabilities therefore cannot be confirmed from the available material.

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Technical Specs & Signals

Category💻Developer Tools
More technical detailsExpand ▾
TransportSTDIO
RuntimeNode.js
LicenseMIT
Last updatedOct 7, 2026
6/6 checks healthy over the last 43d
Views0
Unique ViewsTotal visits recorded for this listing page on AllMCPs.
Installs0
Installs & Copy ActionsTotal times users copied install commands or configuration snippets for this server.
GitHub stars6
GitHub Star CountTotal stargazers on GitHub representing community popularity (6 stars).
Last commit1d ago
Last Repository CommitThe most recent commit or push recorded for this server's GitHub repository.Last commit on Oct 7, 2026
npm downloads3,099/mo
Monthly npm DownloadsAverage monthly package installs recorded from npm registry statistics.
47Quality signal: Fair · 47/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20
Documentation & tools16/30
Adoption & activity9/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 4d ago via OSV.dev · sigrank (npm)

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