How do I install Toolfi?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Toolfi need an API key?

No required environment variable is listed on this record.

When was Toolfi last checked?

Last checked 2026-11-09. Open API Marketplace for AI Agents. Crypto data tools with USDC payments on Base.

Toolfi MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://web-ten-alpha-81.vercel.app/api/mcp

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http io.github.tsubaki414-toolfi https://web-ten-alpha-81.vercel.app/api/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.tsubaki414-toolfi": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://web-ten-alpha-81.vercel.app/api/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.2.0
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

ToolFi — API Marketplace for AI Agents

"The next unicorn is an API marketplace for agents... where the right API should be selected by Claude and connected automatically" — @auralix4

API marketplaces exist, but they're built for human developers. ToolFi is built for AI workflows — agents discover, select, and pay for APIs automatically, without human intervention.

🌐 Website · 📡 API · 📜 Contract · 🗺️ Roadmap

The Problem

AI agents need external data (prices, security checks, routes). Current solutions:

RapidAPI, etc. — Built for humans. Agents can't browse and click "Subscribe"
Hardcoded keys — Security risk, doesn't scale
Manual integration — Every new tool needs human setup

The Solution

ToolFi = APIs that agents can discover and use autonomously.

Discovery — Agents find tools via .well-known/mcp.json, MCP registries, semantic search
Selection — Rich descriptions help agents pick the right tool
Payment — USDC on Base, no API keys, just pay and use
Data — Structured responses optimized for LLM consumption

How It Works

Agent → GET /api/price?symbol=ETH
                ↓
Server → 402 Payment Required
         { toolId, price, paymentInstructions }
                ↓
Agent → USDC.approve() → Registry.payForCall(toolId)
                ↓
Agent → Retry with X-Payment-Tx header
                ↓
Server → Verify on-chain → Return data

Available Tools

Tool	Price	What it does
Crypto Price Oracle	0.001 USDC	Real-time prices via DexScreener
Rug Pull Scanner	0.003 USDC	Token security via GoPlus
Bridge Router	0.002 USDC	Cross-chain routes via Li.Fi
DeFi Yield Finder	0.002 USDC	Best yields via DefiLlama
Swap Router	0.002 USDC	DEX aggregation via Li.Fi
Trending Coins	0.001 USDC	What's hot via CoinGecko
Protocol TVL	0.001 USDC	DeFi TVL data via DefiLlama
Gas Tracker	0.0005 USDC	Gas prices for EVM chains
Wallet Risk Scanner	0.005 USDC	Address risk analysis
News Digest	0.002 USDC	Crypto news summary

Integration Options

Option 1: HTTP API (Any Agent)

# Pay on-chain, then call with payment proof
curl -H "X-Payment-Tx: 0x..." "https://toolfi.vercel.app/api/price?symbol=ETH"

Option 2: MCP Server (Claude Desktop)

cd mcp-server
uv venv && source .venv/bin/activate
uv pip install -e .

Add to Claude Desktop config:

{
  "mcpServers": {
    "toolfi": {
      "command": "/path/to/.venv/bin/python",
      "args": ["-m", "src.server"],
      "cwd": "/path/to/mcp-server"
    }
  }
}

Then ask Claude: "Check the security of token 0x... on Base"

For Tool Creators

Publish your API and earn USDC:

cast send $REGISTRY \
  "registerTool(string,string,string,uint256)" \
  "My Tool" "https://api.example.com" "Description" 10000 \
  --rpc-url https://sepolia.base.org --private-key $KEY

Price in 6 decimals: 10000 = $0.01/call

Withdraw earnings:

cast send $REGISTRY "withdraw()" --rpc-url https://sepolia.base.org

Contract


Chain	Base Sepolia (84532)
USDC	`0x036CbD53842c5426634e7929541eC2318f3dCF7e`
Registry	`0x3D6C600799C67b45061eCAbfD5bBF8ef57Dded88`

Project Structure

toolfi/
├── api/           # Vercel serverless API
├── web/           # Next.js frontend
├── mcp-server/    # Python MCP server for Claude
├── src/           # Solidity contracts
├── skill/         # OpenClaw skill spec
└── script/        # Deployment scripts

Development

# Contracts
forge build
forge test -v

# API
cd api && npm install && npm start

# MCP Server
cd mcp-server && uv pip install -e . && python -m src.server

Roadmap

License

MIT

Toolfi

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Toolfi?

Does Toolfi need an API key?

What transport does Toolfi use?

When was Toolfi last checked?

Documentation

ToolFi — API Marketplace for AI Agents

The Problem

The Solution

How It Works

Available Tools

Integration Options

Option 1: HTTP API (Any Agent)

Option 2: MCP Server (Claude Desktop)

For Tool Creators

Contract

Project Structure

Development

Roadmap

License