Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer
RyRank
Overview
Description from the maker (original English)
Cohere-compatible pay-per-call reranker, no signup, x402/USDC
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new↓ 13/wk · ★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
- You need to fill in: RYRANK_API, RYRANK_XPAYMENT
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- You fill in yourself:
RYRANK_API,RYRANK_XPAYMENT
Values marked secret are keys to your account. Never share them or paste them into a chat.
You need
- PyPIPython’s uv installed (for the uvx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"ryrank": {
"command": "uvx",
"args": [
"ryrank-mcp"
],
"env": {
"RYRANK_API": "your-value",
"RYRANK_XPAYMENT": "your-value"
}
}
}
}Run this in your terminal
claude mcp add ryrank --env RYRANK_API=your-value --env RYRANK_XPAYMENT=your-value -- uvx ryrank-mcpFill in the empty values before running it.
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"ryrank": {
"command": "uvx",
"args": [
"ryrank-mcp"
],
"env": {
"RYRANK_API": "your-value",
"RYRANK_XPAYMENT": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"ryrank": {
"type": "stdio",
"command": "uvx",
"args": [
"ryrank-mcp"
],
"env": {
"RYRANK_API": "your-value",
"RYRANK_XPAYMENT": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
- Base URL of the hosted RyRank API (default https://trigeochiral.com)
- Optional base64 x402 X-PAYMENT payload for paid calls past the free tier
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account trigeochiral, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 18613 servers in this category
- Published to the registry more recently than 31% of the other 18613 servers in this category
- Basic checks equal to or better than 100% of the other 18613 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is RyRank safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
You need to fill in: RYRANK_API, RYRANK_XPAYMENT
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, DECIDE: Migration Discovery Risk Review
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud✓ desktopcommander.app
DECIDE: Migration Discovery Risk Review
Run after each discovery iteration to see what's still uncertain, who to ask next, and what changed.
Runs in the cloud
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
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
pip install ryrank-mcpclaude mcp add ryrank --env RYRANK_API=https://trigeochiral.com -- ryrank-mcp
or with uvx (no install):
claude mcp add ryrank --env RYRANK_API=https://trigeochiral.com -- uvx ryrank-mcpOptional: 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)
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