Blockrun MCP

Name: Blockrun MCP
Author: BlockRunAI

by BlockRunAIversion 0.55.5i★ –iRuns on your computer

Registry nameio.github.BlockRunAI/blockrun-mcp

Install

Overview

Description from the maker (original English)

Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via 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
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: Search & AI memory
You need to fill in: BLOCKRUN_WALLET_KEY, SOLANA_WALLET_KEY, BLOCKRUN_API_KEY

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).
You fill in yourself: BLOCKRUN_WALLET_KEY, SOLANA_WALLET_KEY, BLOCKRUN_API_KEY

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

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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": {
    "blockrun": {
      "command": "npx",
      "args": [
        "-y",
        "@blockrun/mcp"
      ],
      "env": {
        "BLOCKRUN_WALLET_KEY": "your-value",
        "SOLANA_WALLET_KEY": "your-value",
        "BLOCKRUN_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add blockrun --env BLOCKRUN_WALLET_KEY=your-value --env SOLANA_WALLET_KEY=your-value --env BLOCKRUN_API_KEY=your-value -- npx -y @blockrun/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": {
    "blockrun": {
      "command": "npx",
      "args": [
        "-y",
        "@blockrun/mcp"
      ],
      "env": {
        "BLOCKRUN_WALLET_KEY": "your-value",
        "SOLANA_WALLET_KEY": "your-value",
        "BLOCKRUN_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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "blockrun": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@blockrun/mcp"
      ],
      "env": {
        "BLOCKRUN_WALLET_KEY": "your-value",
        "SOLANA_WALLET_KEY": "your-value",
        "BLOCKRUN_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 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.

Values you fill in

BLOCKRUN_WALLET_KEY secret env
Optional: EVM private key (0x-prefixed hex) for USDC payments on Base; also the Polymarket signer. If not set, a wallet is auto-generated.
SOLANA_WALLET_KEY secret env
Optional: Solana private key (bs58) for USDC payments on Solana. Setting it selects the Solana chain. If not set, a wallet is auto-generated.
BLOCKRUN_API_KEY secret env
Optional: BlockRun account API key; bills your prepaid balance instead of a wallet (no per-call network fee). Takes priority over a wallet when set.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account BlockRunAI, 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 Search & AI memoryi

More stars than 0% of the other 7250 servers in this category
Published to the registry more recently than 96% of the other 7250 servers in this category
Basic checks equal to or better than 100% of the other 7250 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 Blockrun 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: BLOCKRUN_WALLET_KEY, SOLANA_WALLET_KEY, BLOCKRUN_API_KEY

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 (0.55.5) reached the registry yesterday.

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: 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.

BlockRun MCP

Real-time data — and real trades — for Claude and any AI agent.

Agents can pay like agents: sign transactions from a wallet.

Teams can pay like teams: get a BlockRun API key at user.blockrun.ai , add credit by card or wire, and let the MCP call api.blockrun.ai .

BlockRun MCP gives your agent 19 tools — markets, research, web search, images, video, on-chain data, and live Polymarket trading — paid per call.

Two ways to pay, same tools: a self-custody wallet (USDC on Solana, Base or Arc, no account needed) — or a BlockRun API key backed by account credit. Sign up at user.blockrun.ai →

Read the odds and place the bet, from one self-custody wallet.

claude mcp add blockrun -s user -- npx -y @blockrun/mcp@latest

Wallet auto-created on first run. Fund with $5 USDC — or get a key at user.blockrun.ai , top up by card, and call through api.blockrun.ai . Ask Claude anything.

Every MCP server costs you this. Almost none of them tell you. How we measure it, and how to measure anyone else →

BlockRun MCP is an open-source Model Context Protocol server that gives Claude — and any MCP-compatible agent — 19 tools for real-time data and real actions: 90 LLMs, image & video generation, prediction-market data, live web + news search, on-chain queries across 40 chains, and the ability to place real, USDC-settled bets on Polymarket.

You pay per call, and you choose how. Wallet mode authenticates with a signature and settles each call in USDC via the x402 protocol — no account, no credit card, no subscription, on Solana, Base or Arc. Account mode authenticates with a BlockRun API key (brk_live_…) from user.blockrun.ai, routes service calls through api.blockrun.ai, and draws down card- or wire-funded account credit at exact usage. Same 19 tools either way. MIT licensed.

🏆 First of its kind — the signal → trade loop in Claude Code

Read live Polymarket odds *and* place the bet, from one self-custody wallet, pay-per-call. Jump to Polymarket trading →

Why BlockRun MCP exists

Every other data integration was built for human developers — create an account, copy an API key into .env, add a credit card, repeat for every vendor.

BlockRun gives you both payment rails without rebuilding the integration. Use a wallet when the agent should self-custody funds, or use an account key when a team wants card-funded credits and a dashboard.

One wallet, every source — 19 tools behind a single self-custody wallet. No per-vendor signups.
One account key, every source — mint a key at user.blockrun.ai, top up by card or wire, then the MCP calls api.blockrun.ai with that key.
No API key required in wallet mode — your wallet signature *is* authentication.
No credit card required in wallet mode — pay per request in USDC via x402, fractions of a cent each.
Starts free — the free tier (blockrun_chat mode:"free", blockrun_dex, crypto blockrun_price, blockrun_models) costs $0.
**Reads *and* acts** — most tools deliver data; blockrun_polymarket places real, confirm-gated trades.
Human-in-the-loop payments — turn on BLOCKRUN_CONFIRM_SPEND=on and the agent pauses before any paid call above your threshold; nothing is signed until you approve. Details ↓
Generative UI — on Claude Desktop, claude.ai, VS Code and Cursor the Polymarket preview is a live order card with a Place button, and the wallet is a panel with balances, QR and card top-up. MCP Apps ↓
Self-custody — your key never leaves your machine (~/.blockrun/.session, 0600 — or the OS keychain once you opt into BLOCKRUN_KEYCHAIN=strict). BlockRun can't move your funds.

How it compares

	Raw provider APIs	Typical single-vendor MCP	BlockRun MCP
Setup	Account + API key per vendor	Account/key for 1 vendor	Wallet auto-created — or one BlockRun key for everything
Payment	Credit card, monthly minimums	Credit card / vendor plan	USDC per-call via x402, or card/wire-funded account credit
Data sources	One per integration	One vendor	19 tools — LLMs, media, markets, chain
Place real bets	Build it yourself	Rare	Yes — Polymarket CLOB, confirm-gated
Pay-chain	—	—	Solana + Base, or `api.blockrun.ai` with no chain at all
Agent budgets	Manual	—	Built-in per-agent delegation
Spend approval	—	—	Ask-before-pay dialog (MCP elicitation)
Generative UI	—	Rare	Order card + wallet panel (MCP Apps)
Open source	Varies	Varies	Yes (MIT)

✓ One wallet or one account key · ✓ Pay-per-call · ✓ Reads and trades · ✓ Multi-chain · ✓ Agent-ready · ✓ Open source

What changes

Before BlockRun, Claude can't answer:

*"What's the current Polymarket probability that Bitcoin hits $100k this year?"*
*"Find me the top 5 papers on RAG published in the last 30 days."*
*"What are people saying about @sama on X right now?"*
*"What's the 24h volume on the PEPE/ETH pair on Uniswap?"*
*"Polymarket has the Fed holding at 73% — put $2 on it."* ← and now it can place the trade, not just read the odds.

After BlockRun, it can. Each query costs fractions of a cent — billed from a local USDC wallet, or from card-funded credit on a BlockRun account through api.blockrun.ai. No subscriptions, no per-vendor signups.

Quick Start

0. Choose how you pay

	Wallet (default)	API key
Setup	Nothing — a wallet is created on first run	Sign in at user.blockrun.ai, mint a key, use it against api.blockrun.ai
Funding	Send USDC (Solana, Base or Arc)	Credit card / wire → account credit
Billing	Per call, settled on-chain, + $0.001 network fee	Exact-usage account credit, no per-call network fee, no minimum
Identity	A keypair on your machine	An account with members, credits, and a usage ledger
Best for	Agents, solo devs, anything self-custody	Teams, companies, anyone who can't run a wallet
Trade on Polymarket	✅	❌ — needs a keypair to sign

Both modes reach the same 19 tools. Account mode sends service calls to https://api.blockrun.ai by default. You can switch at any time; setting BLOCKRUN_API_KEY takes priority over a wallet, and unsetting it hands the wallet back.

1. Install

Claude Code (recommended)

claude mcp add blockrun -s user -- npx -y @blockrun/mcp@latest

-s user installs globally (available in every project). The -- separator ensures -y is passed to npx, not parsed by claude mcp add.

💡 Homebrew / nvm users: if the server doesn't connect, Claude Code likely can't find node/npx on its launcher PATH. Pass your shell PATH through — works on CLI and desktop:

`bash

claude mcp add blockrun -s user -e PATH="$PATH" -- npx -y @blockrun/mcp@latest

`

See Troubleshooting if it persists.

Every MCP client — one command or one JSON block. *Verified* = we ran the published package on that client and saw the tools listed (client version · date). *Documented* = install path from the client's own docs; not run by us yet — tell us if it works. The Spend dialog column is whether the client renders the human-in-the-loop payment prompt; on ❌ clients paid calls proceed without asking and BLOCKRUN_BUDGET_LIMIT is the guard.

Client	Status	Spend dialog	Install

| Claude Code | ✅ Verified · 2.1.251

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

Blockrun MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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 Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

🏆 First of its kind — the signal → trade loop in Claude Code

Why BlockRun MCP exists

How it compares

What changes

Quick Start

0. Choose how you pay

1. Install