Tollkit
Web search, pages and PDFs, crypto market data, SEC filings and weather for agents. USDC per call.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http tollkit 'https://api.tollkit.dev/mcp'{
"mcpServers": {
"tollkit": {
"type": "http",
"url": "https://api.tollkit.dev/mcp"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Tollkit MCP server
Pay-per-call tools for AI agents, as one remote MCP server:
https://api.tollkit.dev/mcpNo account and no API key. Each paid tool costs a fixed amount of USDC, paid per call with x402 on Base or Solana. A call that fails is never charged.
Listed in the official MCP Registry as io.github.UltraStarz/x402-extract.
Connect
Add the URL above as a remote (Streamable HTTP) MCP server in Claude, Cursor or any MCP client. In clients that take a JSON config:
{
"mcpServers": {
"tollkit": { "url": "https://api.tollkit.dev/mcp" }
}
}Paying: MCP has no 402 status, so a paid tool called without its payment argument returns the price quote as its result. Sign that quote with your x402 wallet and call the tool again with payment set. Six tools are always free: try_it_free (a real sample result), get_service_info, find_service, check_service, check_my_balance and verify_attestation. Fourteen give 3 free calls a day without a payment: read_page, screenshot_page, pdf_to_text, weather_forecast, airport_delays, geocode_address, exchange_rate, ip_lookup, wallet_balance, token_info, transaction_lookup, token_price, token_check and sec_company.
Tools
| Group | Tools | Price per call |
|---|---|---|
| Web pages & documents | web search (with date, site and news filters), search + read top pages, read a page or up to 5 at once in a real browser, screenshot, summarize, page brief, PDF to text | $0.002 – $0.008 |
| Public data | SEC filings, financials, company snapshot and due diligence; weather anywhere in the world (by point, or US address); FAA airport delays; US address geocoding; exchange rates; IP lookup | $0.002 – $0.03 |
| On-chain (Base, Ethereum, Solana) | wallet balance and portfolio, token info, token price, token safety check, transaction lookup, pre-trade check | $0.001 – $0.01 |
| x402 market data | best x402 tools for a task, seller lookup, full market dataset | $0.01 – $0.10 |
| Product data | price, stock, brand, SKU and images from a store page; compare up to 5 | $0.01 – $0.04 |
| Proof | signed, timestamped record of what a page said | $0.05 |
Live prices: /health · every tool with its URL and body: llms.txt · tollkit.dev/tools
Without MCP
Every tool is also a plain HTTP endpoint: POST the JSON body, get HTTP 402 with the price, pay with any x402 client (for example @x402/fetch), repeat the request. OpenAPI per hostname, e.g. https://data.tollkit.dev/openapi.json.
This repo
server.json is the MCP Registry entry. src/ holds an older stdio client (the x402-extract-mcp npm package) that only wraps product extraction and is no longer maintained; use the remote server above instead.
More
- Weekly x402 market report — free
- Live sales · Status
- hello@tollkit.dev · Tollkit LLC
MIT licensed.
Frequently asked questions
What is Tollkit?
Web search, pages and PDFs, crypto market data, SEC filings and weather for agents. USDC per call.
How do I install Tollkit?
It runs as a remote server. In Claude Code: claude mcp add --transport http tollkit 'https://api.tollkit.dev/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does Tollkit need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is Tollkit open source?
Its code is public on GitHub, but the repository does not declare a standard license.
Who maintains Tollkit?
It is published by UltraStarz. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.