Feedback Synthesis MCP

Name: Feedback Synthesis MCP
Author: sapph1re

by sapph1reversion 0.1.2i★ –iComputer or cloud

Registry nameio.github.sapph1re/feedback-synthesis-mcp

Install

Overview

Description from the maker (original English)

Synthesize GitHub Issues, HN and App Store reviews into ranked pain clusters. Pay-per-call x402.

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↓ 24/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: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Developer tools
You need to fill in: EVM_PRIVATE_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: EVM_PRIVATE_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://feedback-synthesis-mcp-production.up.railway.app/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "feedback-synthesis": {
      "command": "uvx",
      "args": [
        "feedback-synthesis-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http feedback-synthesis https://feedback-synthesis-mcp-production.up.railway.app/mcp

Or run it on your computer

claude mcp add feedback-synthesis --env EVM_PRIVATE_KEY=your-value -- uvx feedback-synthesis-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "feedback-synthesis": {
      "url": "https://feedback-synthesis-mcp-production.up.railway.app/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "feedback-synthesis": {
      "command": "uvx",
      "args": [
        "feedback-synthesis-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "feedback-synthesis": {
      "type": "http",
      "url": "https://feedback-synthesis-mcp-production.up.railway.app/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "feedback-synthesis": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "feedback-synthesis-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "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.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://feedback-synthesis-mcp-production.up.railway.app/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

EVM_PRIVATE_KEY secret env
EVM wallet private key for x402 micropayment signing (any wallet with USDC on Base mainnet)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 sapph1re, 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Developer toolsi

More stars than 0% of the other 4924 servers in this category
Published to the registry more recently than 35% of the other 4924 servers in this category
Basic checks equal to or better than 100% of the other 4924 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 Feedback Synthesis MCP 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: EVM_PRIVATE_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.2) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

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

GitHub

GitHub’s official server lets AI read and manage code, issues and pull requests in your account. Use GitHub’s hosted version or run it locally with Docker.

by githubWidely used★ 34.2KUpdated 5 days ago

Computer or cloud

Install

Desktop Commander

MCP server for terminal commands, file operations, and process management

by wonderwhy-erWidely used↓ 709.6K/wk★ 10.2KUpdated 17 days ago

Runs on your computer

Install

Cloudflare MCP

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by cloudflareGrowing★ 4.4KUpdated 14 months ago

Runs in the cloud✓ mcp.cloudflare.com

Install

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.

Feedback Synthesis MCP

Customer feedback intelligence for AI agents and developers. Synthesize GitHub Issues, Hacker News threads, and App Store reviews into ranked pain clusters with evidence links. Pay-per-call via x402 micropayments — no signup required.

Stop reading through hundreds of feedback items manually. Feedback Synthesis MCP collects from multiple sources, runs a multi-pass LLM pipeline, and returns ranked pain clusters with impact scores, evidence links, and suggested actions — machine-readable for agents, human-readable for founders.

Quick Start

Install:

pip install feedback-synthesis-mcp

Set your wallet key (any EVM wallet with USDC on Base mainnet):

export EVM_PRIVATE_KEY=your_private_key_here

Add to Claude Desktop — edit ~/Library/Application Support/Claude/claude_desktop_config.json:

"mcpServers": { "feedback-synthesis-mcp": { "command": "feedback-synthesis-mcp", "env": { "EVM_PRIVATE_KEY": "your_private_key_here" } } } }

Add to Cursor — edit .cursor/mcp.json in your project root:

"mcpServers": { "feedback-synthesis-mcp": { "command": "feedback-synthesis-mcp", "env": { "EVM_PRIVATE_KEY": "your_private_key_here" } } } }

Restart your client. You now have four customer intelligence tools available.

Tools

Tool	What it does	Price
`synthesize_feedback`	Multi-source synthesis → ranked pain clusters with evidence	$0.05/call
`get_pain_points`	Quick single-source pain point extraction	$0.02/call
`search_feedback`	Full-text search across cached feedback items	$0.01/call
`get_sentiment_trends`	Time-series sentiment across sources	$0.03/call

Supported sources: GitHub Issues, Hacker News, Apple App Store Reviews

Examples

Synthesize feedback from multiple sources

synthesize_feedback(

sources=[ {"type": "github_issues", "target": "owner/my-repo", "labels": ["bug", "feature-request"]}, {"type": "hackernews", "target": "Show HN: MyProduct"} ], since="2026-01-01T00:00:00Z" )

Returns:

"job_id": "syn_abc123", "status": "completed", "summary": "Analyzed 347 feedback items from 2 sources. Found 6 pain clusters.", "pain_clusters": [ { "rank": 1, "title": "Authentication flow breaks on mobile Safari", "severity": "critical", "frequency": 23, "impact_score": 0.92, "description": "Users report inability to complete OAuth login on iOS Safari. Affects onboarding conversion.", "evidence": [ { "source": "github", "url": "https://github.com/owner/my-repo/issues/142", "snippet": "Login fails silently on Safari 17.2+" } ], "suggested_actions": [ "Fix Safari WebAuthn polyfill (see issue #142)", "Add fallback auth flow for mobile browsers" ] } ] }

Quick pain points from GitHub Issues

get_pain_points(

source={"type": "github_issues", "target": "owner/my-repo", "labels": ["bug"]}, top_n=5 )

Search for specific topics

search_feedback(query="pricing too expensive", sources=["github_issues", "hackernews"])

Track sentiment over time

get_sentiment_trends(

sources=[{"type": "appstore", "target": "com.example.myapp"}], since="2025-10-01T00:00:00Z", granularity="weekly" )

Payment

This MCP uses x402 micropayments on Base mainnet (USDC). You need:

An EVM wallet with USDC on Base mainnet
The wallet's private key set as EVM_PRIVATE_KEY

Each call costs $0.01–$0.05 USDC. Payments are made automatically — no subscriptions, no API keys.

No payment configured? The server returns a helpful error with setup instructions.

Architecture

This package is a thin MCP client. All processing happens on the hosted backend:

Your Agent / Claude Desktop

│ ▼ feedback-synthesis-mcp (this package)

MCP tool definitions
x402 payment signing
Zero business logic │ HTTPS + x402 ▼

Hosted Backend (Railway)

Multi-source data collection
3-stage LLM pipeline (Haiku × N + Sonnet × 1)
SQLite caching + FTS search
x402 payment verification

Server code is private (moat). Thin client is open source.

Direct MCP over HTTP (Streamable HTTP Transport)

Skip the PyPI package for programmatic/agent access using the hosted MCP endpoint directly:

MCP Server URL: https://feedback-synthesis-mcp-production.up.railway.app/mcp/

For MCP clients that support Streamable HTTP transport (Claude Desktop via HTTP, custom agents):

"mcpServers": { "feedback-synthesis-mcp": { "type": "streamable-http", "url": "https://feedback-synthesis-mcp-production.up.railway.app/mcp/" } } }

x402 payment is handled automatically by the client SDK. Set EVM_PRIVATE_KEY in your environment.

License

MIT

Feedback Synthesis MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

Feedback Synthesis MCP

Quick Start

Tools

Examples

Synthesize feedback from multiple sources

Quick pain points from GitHub Issues

Search for specific topics

Track sentiment over time

Payment

Architecture

Direct MCP over HTTP (Streamable HTTP Transport)

License