# Contribution Exchange

> Contribution Exchange, an MCP server by signalaf.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Contribution Exchange MCP: domain discovery, policies, preflight, proposals, and signals.

- Canonical: https://www.anchorterminal.com/tools/signalaf-contribution-exchange
- Markdown: https://www.anchorterminal.com/tools/signalaf-contribution-exchange.md (~500 tokens)
- Slim: https://www.anchorterminal.com/tools/signalaf-contribution-exchange.min.md (~430 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/tools/signalaf-contribution-exchange.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

# Contribution Exchange

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by signalaf.com (https://signalaf.com/exchange)
- Category: Travel & booking (https://www.anchorterminal.com/categories/travel.md)
- Listed because: It's published in the registry under signalaf.com, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Contribution Exchange MCP: domain discovery, policies, preflight, proposals, and signals.

## Facts

- MCP registry: `com.signalaf/contribution-exchange` 1.0.0
- Endpoint: https://signalaf.com/api/exchange/mcp (streamable HTTP)
- Source: https://github.com/SunrisesIllNeverSee/sigrank-app
- Website: https://signalaf.com/exchange
- GitHub stars: 6
- Registry entry updated: 2026-08-26

## Tools

- Tools: couldn't list them, initialize: HTTP 402 (checked 2026-10-04 22:23 UTC)

- JSON: https://www.anchorterminal.com/api/v1/tools/signalaf-contribution-exchange.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming