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
HasData ChatGPT
Overview
Description from the maker (original English)
Send a prompt to ChatGPT anonymously and get the answer with its web sources, as JSON.
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: Computer or cloud
- Transport: stdio, Streamable HTTP
- Category: Other
- You need to fill in: HASDATA_API_KEY, x-api-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:
HASDATA_API_KEY,x-api-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
- 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 …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Or run it on your computer
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"chatgpt": {
"command": "npx",
"args": [
"-y",
"@hasdata/chatgpt-mcp"
],
"env": {
"HASDATA_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http chatgpt 'https://mcp.hasdata.com/mcp?apis=chatgpt' --header 'x-api-key: your-value'Or run it on your computer
claude mcp add chatgpt --env HASDATA_API_KEY=your-value -- npx -y @hasdata/chatgpt-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": {
"chatgpt": {
"url": "https://mcp.hasdata.com/mcp?apis=chatgpt",
"headers": {
"x-api-key": "your-value"
}
}
}
}Or run it on your computer
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"chatgpt": {
"command": "npx",
"args": [
"-y",
"@hasdata/chatgpt-mcp"
],
"env": {
"HASDATA_API_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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"chatgpt": {
"type": "http",
"url": "https://mcp.hasdata.com/mcp?apis=chatgpt",
"headers": {
"x-api-key": "your-value"
}
}
}
}Or run it on your computer
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"chatgpt": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hasdata/chatgpt-mcp"
],
"env": {
"HASDATA_API_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.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
- HasData API key, created at app.hasdata.com. 1,000 free credits every month, no card.
x-api-keysecret required HTTP headerHasData API key, created at app.hasdata.com. 1,000 free credits every month, no card.
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 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain hasdata.com (the registry checks domain ownership)
- … 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 Otheri
- More stars than 0% of the other 32364 servers in this category
- Published to the registry more recently than 56% of the other 32364 servers in this category
- Basic checks equal to or better than 100% of the other 32364 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 HasData ChatGPT 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: HASDATA_API_KEY, x-api-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 (1.0.0) reached the registry 32 days 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: Spec Driven Development, Remote Desktop Commander, AlphaGrowth
Alternatives
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
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Free crypto data for AI agents: TVL, fees, funding, investors, yields, token unlocks, DAO treasuries
Runs in the cloudUpdated today
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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.
ChatGPT MCP Server
A hosted ChatGPT MCP server that gives Claude, Cursor, Windsurf and any other MCP client one ChatGPT tool. Send a prompt anonymously and get the answer back as markdown together with the web pages ChatGPT consulted, as structured JSON, with no OpenAI account and no API key of your own.
1,000 free credits every month, no card required, which is 100 prompts.
https://mcp.hasdata.com/mcp?apis=chatgptContents
- What you need
- Quick start
- Example prompts
- Tools
- Errors and failure paths
- Pricing, free tier and limits
- How it compares
- FAQ
- HasData links
- Development
- Contributing
- License
What you need
An MCP client and a HasData API key from the dashboard, free to create with no card, and the free tier covers 100 calls a month at the 10-credit rate. This is a remote server, so the simplest path is a URL and an x-api-key header, with no container to run and no OpenAI billing anywhere in the flow. A client that only speaks stdio reaches it through a thin launcher, published as @hasdata/chatgpt-mcp on npm and hasdata-chatgpt-mcp on PyPI, shown below.
Quick start
The server URL is the same for every client. We run it hands-on in Claude Code and Claude Desktop. The other blocks follow each client's own documented format for a remote server.
| Field | Value |
|---|---|
| URL | https://mcp.hasdata.com/mcp?apis=chatgpt |
| Transport | HTTP, streamable |
| Auth header | x-api-key: HASDATA_API_KEY |
Clients with OAuth support can add the same URL as a connector and sign in without putting a key in a config file.
Claude Code
claude mcp add --transport http chatgpt "https://mcp.hasdata.com/mcp?apis=chatgpt" \--header "x-api-key: HASDATA_API_KEY"
Claude Desktop
{"mcpServers": { "chatgpt": { "type": "http", "url": "https://mcp.hasdata.com/mcp?apis=chatgpt", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
Cursor
{"mcpServers": { "chatgpt": { "type": "streamable-http", "url": "https://mcp.hasdata.com/mcp?apis=chatgpt", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
VS Code
{"servers": { "chatgpt": { "type": "http", "url": "https://mcp.hasdata.com/mcp?apis=chatgpt", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
Example prompts
Prompts, not code. Paste one in and the agent picks the tool itself. Each is annotated with the calls it takes, because every successful call costs 10 credits.
Ask ChatGPT what the current state of the Artemis program is, and list the sources it used.
*One call, 10 credits. The answer and the sources come back together.*
Ask ChatGPT the same question in German.
*One call, 10 credits. The answer follows the language of the prompt, so write the prompt in the language you want back.*
Ask ChatGPT what happened in AI this week, with Berlin as the current date.
*One call, 10 credits. timezone is what fixes the meaning of "this week".*
Put the same question to ChatGPT three times and show where the answers differ.
*Three calls, 30 credits. Each request is a fresh conversation, so there is no carry-over between them.*
Tools
| Tool | What it returns |
|---|---|
hasdata_chatgpt_chat_getChatgptAnswer | The answer as markdown, the web sources ChatGPT consulted with their domain and title, the conversation title it generated, the model that answered, and whether a web search was used. 10 credits a call |
One tool, 10 credits per successful call.
Ask ChatGPT
hasdata_chatgpt_chat_getChatgptAnswer
| Parameter | Type | Required | Notes |
|---|---|---|---|
prompt | string | yes | The question or instruction, up to 8000 characters |
timezone | string | IANA zone name such as Europe/Berlin. It sets what ChatGPT treats as today |
Everything lands under conversation. The answer is in answer as markdown, with title holding the name ChatGPT generated for the thread, model the model that answered, and usedWebSearch saying whether it went to the web at all. finishReason and complete tell a truncated answer from a finished one.
{"conversation": { "answer": "As of October 5, 2026, NASA's Artemis program has made substantial progress…", "title": "Artemis developments cited", "model": "gpt-5-6", "usedWebSearch": true, "finishReason": "stop", "complete": true, "sources": [ { "title": "Artemis News - NASA", "url": "https://www.nasa.gov/artemis-news/", "domain": "www.nasa.gov" } ] } }
Errors and failure paths
Your client almost never sees an HTTP error code from a tool call. The MCP layer answers 200 and puts the failure inside the result, with isError set to true and the reason as text.
`sources` is uneven, and partly absent. In a measured answer carrying twenty sources, every one had title, url and domain, eleven had publishedDate and only five had snippet. Read each field defensively rather than assuming the shape of the first element holds for the rest.
No web search means no sources. usedWebSearch is false when ChatGPT answers from the model alone, and sources is then empty or missing. A prompt about a stable fact often takes that path, so ask for current information when citations are the point.
Every call is a fresh conversation. There is no memory between requests, so a follow-up has to carry its own context in the prompt. conversationId identifies the thread that answered, not a thread you can continue.
A truncated answer still succeeds. Check complete and finishReason before treating answer as the whole response.
Each successful call spends credits from the connected account. A call that fails validation is not billed.
Pricing, free tier and limits
The ChatGPT tool costs 10 credits per successful call. Answer length does not change the price.
The free tier is 1,000 credits every month with no card, which is 100 prompts.
Paid plans start at $59 a month for 200,000 credits, which is 20,000 calls. The unit price falls on larger plans. Current numbers are on the plans page.
How it compares
| OpenAI API | This server | |
|---|---|---|
| Account | Your own OpenAI account and billing | One HasData key |
| What you get | The model's answer | The answer plus the web sources behind it |
| Web search | A separate tool you wire up | Included, with usedWebSearch reporting whether it ran |
| Output | Your own schema | Parsed JSON with the sources already split out |
The two are not substitutes. The OpenAI API is the right call when you need system prompts, tools, streaming and conversation state. This server is the right call when you want what ChatGPT publicly answers, with its citations, and no account of your own.
FAQ
Do I need an OpenAI account or an API key?
No. The server answers anonymously through HasData, and the only credential involved is your HasData key.
Which model answers?
Whichever ChatGPT serves anonymously at the time. The response reports it in model, so read it rather than assuming. A measured call returned gpt-5-6.
Can I continue a conversation?
No. Each request is a fresh thread with no memory of earlier ones. Carry the context in the prompt instead.
What language will the answer be in?
The language of the prompt. Ask in German and the answer comes back in German, or ask explicitly for a language in the prompt.
Is HasData affiliated with OpenAI?
No. HasData is an independent web data provider and is not affiliated with, endorsed by or sponsored by OpenAI. All trademarks belong to their owners.
Compliance and personal data
The server reads what ChatGPT answers publicly to an anonymous visitor. It does not log in, and it does not reach private conversations or account data.
HasData links
| Product page and request builder | ChatGPT Scraper API |
| Endpoint documentation | ChatGPT Scraper API docs |
| Server documentation | MCP server docs |
| Every tool in one server | HasData/hasdata-mcp |
| Client walkthroughs | MCP clients and integrations |
| Plans and credit costs | Plans and credit costs |
Development
npm installnpm test
The tests in test/ assert the tool contract, the part that can break without a commit here. They check that ?apis=chatgpt returns the one expected tool, that its name and required parameter have not changed, that it carries a description, and that a real call still puts the answer under conversation.
Contributing
The parameter table and the sample above were read from the live schema and from real calls rather than from documentation. A correction is welcome when a field or a failure mode has changed. Open an issue with the response you saw.
License
MIT