Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Sourcey
Overview
Description from the maker (original English)
Stdio bridge to Sourcey startup offers and Agent Readiness report cards.
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
- UsageiNot measured yet★ –
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
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).
- The registry lists no key to fill in.
You need
- npmNode.js installed (for the npx 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": {
"sourcey": {
"command": "npx",
"args": [
"-y",
"@sourcey/mcp-server"
]
}
}
}Run this in your terminal
claude mcp add sourcey -- npx -y @sourcey/mcp-serverOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"sourcey": {
"command": "npx",
"args": [
"-y",
"@sourcey/mcp-server"
]
}
}
}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": {
"sourcey": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@sourcey/mcp-server"
]
}
}
}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.
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 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account sourcey, 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 32403 servers in this category
- Published to the registry more recently than 32% of the other 32403 servers in this category
- Basic checks equal to or better than 100% of the other 32403 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 Sourcey 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?
The registry does not list a required key, though some servers ask you to sign in on first use.
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 (1.0.1) 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 Node.js on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, LickityClick
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
Install
LickityClick
by lickity.click
Create, edit and track LickityClick short links, campaigns and click stats from your AI assistant.
Computer or cloudUpdated today
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.
Sourcey
Find evidence-backed startup credits and deals, inspect Agent Readiness report cards, and prepare canonical service declarations from an agent client.
Sourcey is already a hosted Streamable HTTP MCP server:
https://mcp.sourcey.com/mcpGemini CLI can install the hosted connection and bundled sourcey-research skill directly from this repository:
gemini extensions install https://github.com/sourcey/mcp-server --ref main--ref main installs the current extension from the repository. Without it, Gemini CLI selects the older v1.0.0 release archive, which predates the extension manifest. The extension uses the remote Sourcey data MCP; it does not start the npm stdio bridge or invoke Sourcey's separate documentation generator.
Use that URL directly when your client supports remote MCP. This package is the thin stdio bridge for clients that require a local command:
npx -y @sourcey/mcp-server{"mcpServers": { "sourcey": { "command": "npx", "args": ["-y", "@sourcey/mcp-server"] } } }
The bridge downloads no offer dataset and contains no tool implementations. At startup it negotiates with the live Sourcey server, reads the current tool definitions once, and relays tool calls. A data or tool-description update therefore needs no package release.
Agent plugins
This repository also packages the hosted Sourcey connection for Claude, Cursor, Grok Build and portable ChatGPT/Codex distribution. Host manifests are in .claude-plugin/, .cursor-plugin/ and .grok-plugin/; root plugin.json carries Agent Plugins metadata for ChatGPT/Codex. Portable mcp.json and host-specific .mcp.json point directly to https://mcp.sourcey.com/mcp. The bundled Sourcey research skill shows how to check evidence and eligibility before recommending an offer. Marketplace review and live cards are separate from the source package; no ChatGPT/Codex approval is claimed here.
The Claude directory uses the scoped plugin folder at plugins/sourcey. It contains only the hosted connection, research skill, mark, license and README. npm run generate:metadata copies its shared files from the existing root sources; npm run check:metadata verifies the exact file set and bytes. The optional stdio bridge, its dependencies and repository ownership proofs stay outside that installable folder. Other clients can continue using the root manifests.
The plugin connects to Sourcey's startup-offer and Agent Readiness data. It does not run Sourcey's separate documentation generator or pay for Sourcey's HTTP services. The current square mark is in assets/sourcey-mark.png; privacy, terms and support are available on the product site.
Try these prompts after installing the plugin:
- “Find current cloud-hosting startup offers in Sourcey. Show the original source, last-checked date, and any eligibility unknowns for three results.”
- “Compare two of those offers using their recorded terms and evidence. Separate confirmed conditions from anything Sourcey has not verified.”
- “Find a Sourcey Agent Readiness report card and explain the tested workflows, blockers, and claims that remain unverified.”
The Claude plugin's .mcp.json declares only the public HTTPS Sourcey MCP server. It does not run this repository's optional npm stdio bridge or read a local credential. Search terms and record references deliberately sent to the hosted MCP are handled under Sourcey's privacy policy; request bodies are not persisted as product records.
What agents can do
- search and compare current startup credits, discounts, free tiers, programs, perks, and deals;
- inspect exact evidence, freshness, eligibility unknowns, and the signed change feed;
- search and inspect Agent Readiness report cards, including visible grades, five-stage findings, blockers, remediations, methods, coverage, and freshness;
- prepare canonical Agent Readiness declaration YAML without assigning a grade; and
- discover Sourcey's paid HTTP services and x402 endpoint without paying inside MCP.
Call tools/list for the exact live schemas and descriptions. Sourcey's full agent guide is at sourcey.com/SKILL.md, its OpenAPI contract is at api.sourcey.com/openapi.yml, and x402 discovery is at api.sourcey.com/.well-known/x402.
Boundary
This package performs only two actions: MCP over local stdio and MCP over the configured hosted HTTP endpoint. It has no wallet, payment signer, credentials, telemetry, browser, background daemon, mutable plugin, Catalog data, Agent Readiness executor, or submission authority. Paid work remains on Sourcey's canonical HTTP API.
SOURCEY_MCP_URL may select another HTTPS Sourcey endpoint. Plain HTTP is accepted only for a loopback test server. URLs containing credentials or fragments are refused.
Development
npm cinpm run verify docker build -t sourcey-mcp .
The verification path builds from clean output, checks all generated metadata, tests the real HTTP-to-stdio boundary, creates an SBOM, installs the exact packed tarball into a blank project, and repeats protocol introspection from those installed bytes.
MIT. See SECURITY.md and SUPPORT.md for reporting paths.