Toolfi

Open API Marketplace for AI Agents. Crypto data tools with USDC payments on Base.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "toolfi": {
      "url": "https://api.example.com"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

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

Code

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)

bash

# 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)

bash

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

Add to Claude Desktop config:

config.json

{
  "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:

bash

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:

bash

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

Contract


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

Project Structure

Code

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

bash

# 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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

Last commit

7mo ago

Most recent push to the default branch.

Directory activity

1 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Toolfi

toolfi is a hosted MCP server. Add it as a remote server in your client's config: "mcpServers": { "toolfi": { "url": "https://api.example.com" } }

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Technical Specs & Signals

CategoryFinance & Fintech

3/6 checks healthy over the last 45d

35Quality signal: Fair · 35/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity0/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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Explore more

More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Toolfi →Install in Claude Desktop Install in Cursor Install in VS Code Setup guides for all 13 MCP clients

Toolfi

Open API Marketplace for AI Agents. Crypto data tools with USDC payments on Base.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "toolfi": {
      "url": "https://api.example.com"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

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

Code

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)

bash

# 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)

bash

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

Add to Claude Desktop config:

config.json

{
  "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:

bash

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:

bash

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

Contract


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

Project Structure

Code

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

bash

# 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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

Last commit

7mo ago

Most recent push to the default branch.

Directory activity

1 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Toolfi

toolfi is a hosted MCP server. Add it as a remote server in your client's config: "mcpServers": { "toolfi": { "url": "https://api.example.com" } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/toolfi?style=directory)](https://allmcps.com/mcp/toolfi)

HTML Embed

<a href="https://allmcps.com/mcp/toolfi"><img src="https://allmcps.com/api/badge/toolfi?style=directory" alt="Toolfi on AllMCPs" /></a>

Technical Specs & Signals

CategoryFinance & Fintech

3/6 checks healthy over the last 45d

35Quality signal: Fair · 35/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity0/15

Community engagement0/10

★ Featured

AllMCPs Server

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.