Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Chainstack

by chainstacklabsversion 1.12.0i★ –iRuns in the cloud
Registry namecom.chainstack/chainstack

Install

Overview

Description from the maker (original English)

Deploy and manage blockchain nodes across 70+ protocols, search docs, request testnet funds.

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: Search & AI memory
  • You need to fill in: Authorization

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: 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 chainstack https://mcp.chainstack.com/mcp --header 'Authorization: your-value'

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": {
    "chainstack": {
      "url": "https://mcp.chainstack.com/mcp",
      "headers": {
        "Authorization": "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": {
    "chainstack": {
      "type": "http",
      "url": "https://mcp.chainstack.com/mcp",
      "headers": {
        "Authorization": "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

  • Authorization secret HTTP header
    Chainstack API key as a Bearer token. Optional — search_docs, get_doc_page, get_platform_status, get_chainstack_pricing and contact_chainstack work without it. Required for the platform tools (projec…

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 chainstack.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 Search & AI memoryi

  • More stars than 0% of the other 7248 servers in this category
  • Published to the registry more recently than 76% of the other 7248 servers in this category
  • Basic checks equal to or better than 100% of the other 7248 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 Chainstack 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: 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 (1.12.0) reached the registry 11 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: Context7, Codebase Memory, Exa

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

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month
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.

Chainstack MCP server

The Chainstack MCP server gives AI agents direct access to the Chainstack platform — deploy blockchain nodes, search documentation, and check platform status from any coding environment.

Live at [`mcp.chainstack.com`](https://mcp.chainstack.com)

Quick start

Type this into any AI agent:

get mcp.chainstack.com

The agent will fetch the onboarding page and walk you through setup. Works with Claude Code, Cursor, Codex, Windsurf, Gemini CLI, GitHub Copilot, Antigravity, Claude.ai, and ChatGPT.

Tools

No API key needed:

  • search_docs — search Chainstack documentation
  • get_doc_page — fetch full doc page content
  • get_platform_status — check platform status and incidents
  • contact_chainstack — send a message to Chainstack (sales, support, or general questions)
  • get_chainstack_pricing — live pricing snapshot: plan tiers, feature matrix, add-ons, and the per-chain dedicated-node catalog

API key required (get one here):

  • get_organization, list_projects, create_project, get_project, update_project, delete_project
  • list_nodes, get_node, create_node, update_node, delete_node, get_deployment_options
  • list_node_access_rules, create_node_access_rule, update_node_access_rule, delete_node_access_rule, set_node_access_rules_status — restrict a Global Node to allowed IP addresses or origins
  • request_testnet_funds — top up a testnet address from the Chainstack faucet (12 networks across EVM, Solana, and TON)

Two ways to use

Option 1: Install as a skill (lean context)

Cross-agent, via the skills CLI — it auto-detects your installed agent (50+ supported, including Claude Code, Cursor, Codex, Windsurf, Antigravity, GitHub Copilot, Pi, and OpenCode):

npx skills add chainstacklabs/mcp-server

This installs the bundled skills/chainstack skill.

Option 2: Register as an MCP server

VS Code — Chainstack is in the GitHub MCP Registry, so VS Code installs it for you. Two ways:

  • From inside VS Code — open the Extensions view (⇧⌘X / Ctrl+Shift+X), search @mcp chainstack, and click Install. Right-click and choose Install in Workspace to write .vscode/mcp.json instead of your user profile.
  • From the registry — open the Chainstack entry and click Install > Install in VS Code.

Neither needs an API key, which covers every tool that works unauthenticated.

Anywhere else:

claude mcp add --transport http chainstack https://mcp.chainstack.com/mcp -s user

See full setup guide for all agents.

MCP registries

Listed in both public registries as com.chainstack/chainstack:

  • GitHub MCP Registry — the catalog VS Code surfaces in its Extensions view, with one-click install
  • MCP Registry — the official registry that MCP clients read from
curl "https://registry.modelcontextprotocol.io/v0.1/servers?search=com.chainstack/chainstack&version=latest"

server.json is the manifest. Its version field is a placeholder — the publish workflow derives the real value from the live server card at mcp.chainstack.com, which renders it from the deployed chart, so the registry entry cannot drift from what is actually running. Query the registry, not this file, to see what is published.

Issues & feature requests

Use Issues to:

  • Report bugs or unexpected behavior
  • Request new tools or features
  • Suggest improvements to any Chainstack product

Links

Ask PopNx