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PopNx MCPMCP servers for people who use AI · explained in plain words

SpecStream

by specstreamversion 1.3.2i★ –iRuns in the cloud
Registry nameai.specstream/specstream

Install

Overview

Description from the maker (original English)

The live web data engine for teams and agents.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

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 in the cloud
  • Transport: Streamable HTTP
  • Category: Other
  • You need to fill in: Authorization

Install

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

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: Authorization

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

You need

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.

Run this in your terminal

claude mcp add --transport http specstream https://api.specstream.ai/mcp --header 'Authorization: Bearer {api_key}'

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": {
    "specstream": {
      "url": "https://api.specstream.ai/mcp",
      "headers": {
        "Authorization": "Bearer {api_key}"
      }
    }
  }
}

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": {
    "specstream": {
      "type": "http",
      "url": "https://api.specstream.ai/mcp",
      "headers": {
        "Authorization": "Bearer {api_key}"
      }
    }
  }
}

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

  • Authorization secret HTTP header
    Your SpecStream API key as a Bearer token. Create one under Agents & API in the workspace. Clients that support MCP sign-in can leave this empty.

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

What it can do

The server asks you to sign in before it lists its tools.

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain specstream.ai (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

  • ✓ Pass

    Endpoint responds

    Responded in 380 ms (HTTP 401)

  • ✓ Pass

    Sign-in with OAuth

    Declares OAuth sign-in, so your AI app can take you to log in

  • … 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 32700 servers in this category
  • Published to the registry more recently than 97% of the other 32700 servers in this category
  • Basic checks equal to or better than 100% of the other 32700 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 SpecStream safe?

It passed 3 of 3 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: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.3.2) reached the registry yesterday.

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, Agent Data Tools: Utilities

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

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

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 2 days ago
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.

The live web data engine for teams and agents.

Website · Docs · Pricing · MCP Registry

One platform to build, search, extract, enrich, map, and monitor data across the entire web.

Ask for any dataset in plain words, and SpecStream builds it from the entire live web: every match found, extracted and enriched into structured records, then monitored for change. It runs through the API and MCP, and inside Sheets, CRMs, Slack, n8n, Zapier and the other tools teams already use.

ProductWhat it doesPrice
Search APIGET /v1/web-search. The most accurate web search API in the world (scores and method). Answers a question from the live web in seconds.$5 per 1,000 searches
Extract APIPOST /v1/extract. The main text of up to 20 web pages, PDF, Word or Excel files a call. The MCP tool is read_pages.$0.80 per 1,000 pages. A page with no text is not charged.
Deep SearchAsk in plain words. Get every match on the live web, in structured rows. It also enriches a list you have and monitors for change.5¢, 15¢ or $1 a row

Search:

curl -G https://api.specstream.ai/v1/web-search \

-H "Authorization: Bearer $SPECSTREAM_API_KEY" \ --data-urlencode "q=What is the population of Japan?"

Extract:

curl https://api.specstream.ai/v1/extract \

-H "Authorization: Bearer $SPECSTREAM_API_KEY" \ -H "Content-Type: application/json" \ -d '{"urls": ["https://example.com"]}'

  • Source URL and read time on every value.
  • The Search API and Extract API need no quote and no approval. Each search or page takes its flat price from your balance.
  • In Deep Search, the most a run can cost is shown and approved before it runs. Only delivered rows are billed, and a run that finds nothing costs nothing.
  • A saved request reruns hourly to yearly, and each row is labeled changed, unchanged or no longer matching.
  • Your agent works on your account, inside the spending limits you set.

This repository holds what you install around SpecStream: MCP client setup, agent plugins and skills, SDKs, the n8n node, a GitHub Action, and examples. The product itself runs at specstream.ai. Licensed MIT.

PathWhat it is
server.jsonEntry for the official MCP Registry, ai.specstream/specstream
skills/Agent skills: search-web, extract-pages, compile, review-work, approve-work, continue-work
plugins/claude-code/Claude Code plugin (MCP server and the six skills)
plugins/github-agent/Plugin for agents that read the agent-plugins format
.cursor-plugin/Cursor plugin
packages/sdk-py/specstream-client: Python client and the specstream command
packages/sdk-ts/@specstream/sdk: TypeScript client
packages/langchain-specstream/langchain-specstream: LangChain tools and a retriever
packages/llama-index-tools-specstream/llama-index-tools-specstream: LlamaIndex tool spec and a retriever
packages/crewai-specstream/crewai-specstream: CrewAI tools
packages/specstream-haystack/specstream-haystack: Haystack list fetcher component and agent tool
packages/ai-sdk/@specstream/ai-sdk: Vercel AI SDK tools
packages/mcp-stdio/specstream-mcp-stdio: stdio proxy for clients that only start local servers
integrations/n8n/n8n-nodes-specstream: n8n community node
integrations/opencode/opencode-specstream: OpenCode plugin (MCP server and the four skills)
integrations/openclaw/@specstream/openclaw-plugin: OpenClaw plugin (find a list, read its rows, four skills)
integrations/pi/@specstream/pi-package: Pi package (the hosted MCP server and four skills)
integrations/obsidian/Obsidian plugin: ask for data in a note, approve the price, get a Markdown table with a source for each value
integrations/open-webui/Open WebUI tool: quote, approve and read results from a chat, plus the native MCP route
integrations/anythingllm/AnythingLLM agent skill, plus the MCP route
integrations/convex/Convex component (@specstream/convex): live web data as records in your Convex tables, a source for every value
integrations/fivetran/Fivetran Connector SDK connector: your lists, records and each value with its source page in your warehouse
integrations/airbyte/Airbyte source (manifest-only): your lists and records, each value with its source page
integrations/meltano/tap-specstream on PyPI: Singer tap for Meltano and any Singer target, lists and records with each value's source page
integrations/coda/Coda Pack: sync a list into a table with a source column for every value, price a request, find a list from a button
plugins/grok/Grok Build plugin (the hosted MCP server and four skills)
plugins/kiro/Kiro power (the hosted MCP server and four skills)
integrations/vscode/VS Code extension: MCP sign-in and @specstream chat
actions/find-action/GitHub Action that runs a request and uploads a CSV
Formula/Homebrew formula for the command line
examples/Python SDK, TypeScript SDK, OpenAI Agents SDK and LangChain

Connect an agent

The MCP server is https://api.specstream.ai/mcp (Streamable HTTP). Your agent works on your account: the same balance, permissions and spending limits you have.

  1. Open Agents & API in the workspace and create an API key. Give it only what the task needs: read, prepare, or execute, the projects it may use, an expiry, and a spending limit.
  2. Put it in an environment variable, so no file holds it:
   export SPECSTREAM_API_KEY="ss_live_..."
  1. Add the server to your client, below.

Clients that support MCP sign-in can connect without a key. Each guide at specstream.ai/docs/mcp shows the current steps.

New accounts start with $10 of credit for 30 days, no card.

Claude

In Claude, go to Customize > Connectors, choose Add custom connector, name it SpecStream and paste https://api.specstream.ai/mcp. Steps for both sign-in and a key: docs/mcp/claude.

Claude Code
claude mcp add --transport http specstream https://api.specstream.ai/mcp \

--header "Authorization: Bearer $SPECSTREAM_API_KEY"

Or install the plugin, which adds the server and the six skills. It signs you in through your browser the first time, so no key is needed:

/plugin marketplace add specstream/specstream-tools

/plugin install specstream@specstream

ChatGPT

Go to ChatGPT Plugins, choose the plus button, then Add custom MCP server. Paste https://api.specstream.ai/mcp under Connection and set Authentication to OAuth. Steps: docs/mcp/chatgpt.

Codex

Add to ~/.codex/config.toml:

[mcp_servers.specstream]

url = "https://api.specstream.ai/mcp" bearer_token_env_var = "SPECSTREAM_API_KEY"

Cursor

Add to ~/.cursor/mcp.json, or .cursor/mcp.json in one project:

{

"mcpServers": { "specstream": { "url": "https://api.specstream.ai/mcp", "headers": { "Authorization": "Bearer ${env:SPECSTREAM_API_KEY}" } } } }

VS Code

Add to .vscode/mcp.json. VS Code asks for the key once and keeps it out of the file.

{

"inputs": [ { "type": "promptString", "id": "specstream-key", "description": "SpecStream API key", "password": true } ], "servers": { "specstream": { "type": "http", "url": "https://api.specstream.ai/mcp", "headers": { "Authorization": "Bearer ${input:specstream-key}" } } } }

Windsurf

Add to ~/.codeium/windsurf/mcp_config.json:

{

"mcpServers": { "specstream": { "serverUrl": "https://api.specstream.ai/mcp", "headers": { "Authorization": "Bearer ${env:SPECSTREAM_API_KEY}" } } } }

Zed, Cline, and Continue

Cline also connects to the hosted server directly with OAuth sign-in: cline mcp install specstream --transport http https://api.specstream.ai/mcp. Zed and Continue, and Cline if you prefer a key, use the stdio proxy. It forwards your key from the environment and nothing else.

pip install specstream-mcp-stdio

Zed, in settings.json:

{

"context_servers": { "specstream": { "command": "specstream-mcp-stdio", "args": [], "env": { "SPECSTREAM_MCP_URL": "https://api.specstream.ai/mcp" } } } }

Cline, in cline_mcp_settings.json:

{

"mcpServers": { "specstream": { "command": "specstream-mcp-stdio", "args": [], "env": { "SPECSTREAM_MCP_URL": "https://api.specstream.ai/mcp" } } } }

Continue, in .continue/mcpServers/specstream.yaml:

name: SpecStream

version: 1.0.0 schema: v1 mcpServers:

  • name: specstream type: stdio command: specstream-mcp-stdio args: [] env: SPECSTREAM_MCP_URL: https://api.specstream.ai/mcp SPECSTREAM_API_KEY: ${{ secrets.SPECSTREAM_API_KEY }}

Start Zed and Cline from a shell where SPECSTREAM_API_KEY is set. Agents installing SpecStream for someone can follow llms-install.md.

Gemini CLI

Install the extension (the MCP server plus instructions to show the price and wait for a yes):

gemini extensions install https://github.com/specstream/specstream-tools

Or add only the server:

gemini mcp add --transport http specstream https://api.specstream.ai/mcp \

--header "Authorization: Bearer $SPECSTREAM_API_KEY"

Or in ~/.gemini/settings.json:

`jso

Only the beginning is shown; read the rest in the repo

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