RyRank

io.github.trigeochiralPublished by GitHub account trigeochiralv1.0.0Updated Oct 24, 2026

Cohere-compatible pay-per-call reranker, no signup, x402/USDC

The publisher's own server: Rank Fast

VerifiedSTDIODesktop onlyKnowledge & Memory AI & ML

Server details

Identifier: io.github.trigeochiral/ryrank
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

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Overview

AI-generated overview

Lets an assistant rerank documents by relevance to a query through a hosted, Cohere-compatible pay-per-call API.

What you can do: Exposes a single rerank tool that scores and reorders a list of documents against a query, returning a Cohere-compatible response shape of index and relevance_score pairs. The README says it is a hybrid reranker aimed at narrowing retrieval candidate sets, deduping and triage rather than fine semantic disambiguation. The same hosted API also accepts Cohere v2 and Voyage request shapes, so existing rerank client code can point at it with a base URL override.
When to use it: Useful when an assistant needs to reorder RAG retrieval results, document shortlists or tool candidates by relevance, especially at high volume where latency and per-call cost matter. Less suited to distinguishing near-identical phrasings.
Requirements: Runs as a local stdio process installed from the PyPI package ryrank-mcp (pip or uvx). Requires network access to the hosted API and the RYRANK_API environment variable, which defaults to the provider's base URL. No signup or account is declared.

Before you install

Calls beyond the free tier are paid per call in USDC over x402; the optional RYRANK_XPAYMENT environment variable carries a base64 payment payload, so treat it as a secret. Queries and documents are sent to the third-party hosted API. The free tier is limited to 25 calls per day per IP.

Installation

In SourceWeft

Open RyRank in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

RyRank — MCP server

A Cohere-compatible reranker, pay-per-call in USDC on Base (x402), free tier, no signup.

Hosted API: https://trigeochiral.com — set it as RYRANK_API.

Tool

Tool	What
`rerank`	Rerank documents by relevance to a query. Cohere-compatible response shape (`results: [{index, relevance_score}]`), so it drops into an existing `co.rerank()` call. ~$0.001/call over x402 (roughly half Cohere Rerank's list price) or a free tier.

Why

A hybrid reranker, not a cross-encoder: strong when the candidates already share vocabulary with the query, which is the common case for RAG retrieval output and document/tool shortlists. Built for high-volume, latency- and cost-sensitive reranking — narrowing a retrieval candidate set, deduping, triage — rather than close semantic disambiguation between near-identical phrasings. Pay-per-call and about half the price is the trade for that.

Verified against the real cohere.Client, cohere.ClientV2 and voyageai.Client SDKs: point base_url at this API and existing rerank code runs unmodified.

Install

bash

pip install ryrank-mcpclaude mcp add ryrank --env RYRANK_API=https://trigeochiral.com -- ryrank-mcp

pip install ryrank-mcpclaude mcp add ryrank --env RYRANK_API=https://trigeochiral.com -- ryrank-mcp

or with uvx (no install):

Optional: RYRANK_XPAYMENT = a base64 x402 X-PAYMENT payload, to make paid calls past the free tier. Without it you get 25 free calls/day per IP.

Direct HTTP (no MCP)

bash

curl -sX POST https://trigeochiral.com/v1/rerank -H 'content-type: application/json' \  -d '{"query":"how do I reset my password","documents":["Go to Settings > Security and click Reset Password.","Our refund policy allows returns within 30 days."],"top_n":2}'

curl -sX POST https://trigeochiral.com/v1/rerank -H 'content-type: application/json' \  -d '{"query":"how do I reset my password","documents":["Go to Settings > Security and click Reset Password.","Our refund policy allows returns within 30 days."],"top_n":2}'

Also speaks the exact Cohere v2 (POST /v2/rerank) and Voyage (POST /voyage/v1/rerank) request and response shapes, so their official SDKs work unmodified with just a base_url override — see https://trigeochiral.com for details.

License

MIT

Source: README.md at commit 213bbf4

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v1.0.0LatestSep 16, 2026

Score

50% of the applicable checks met

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Reached in the last 30 days25 pts
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Auth declared10 pts
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Tools listed15 pts
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DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

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