# Integrations

Use FastAF in automation workflows and AI agents, or pay for individual API calls with x402.

## How can your workflow call FastAF?

The same web data comes through four paths. Two are automation platforms where you add FastAF as a node or a piece; one is the Model Context Protocol for AI agents and coding assistants; one is x402 for agents that pay per call from a wallet. The first three use a FastAF API key (MCP also accepts OAuth); x402 needs no account.

## n8n

**What it is:** a community node, [`n8n-nodes-fastaf` v0.1.3](https://www.npmjs.com/package/n8n-nodes-fastaf/v/0.1.3), that adds FastAF operations to n8n workflows.

**Setup:** in n8n open **Settings > Community Nodes**, choose install and enter the package name `n8n-nodes-fastaf`. Then add the node to a workflow and connect it with your FastAF API key.

**When to use it:** scheduled or event-driven jobs, for example a daily Google search for a brand term or a check on a list of Amazon ASINs, where the results go to a spreadsheet, a database or a chat channel. Each run draws credits from your account balance.

## Activepieces

**What it is:** a FastAF piece published as [`@fastaf-co/piece-fastaf`](https://www.npmjs.com/package/@fastaf-co/piece-fastaf).

**Setup:** in Activepieces open **Settings > My Pieces > Install Piece** and enter `@fastaf-co/piece-fastaf`. Connect it with your FastAF API key.

**When to use it:** the same no-code automation cases as n8n, if your team already runs flows in Activepieces.

## MCP (Claude Code, Codex, Cursor and other clients)

**What it is:** a remote MCP server at `https://api.fastaf.co/mcp` over Streamable HTTP, with 23 tools such as `google_search`, `google_maps_places`, `amazon_product`, `search_ebay`, `search_walmart`, `search_zillow`, `youtube_transcript`, `get_linkedin_profile`, `x_profile`, `scrape_url` and `search_flights`.

**Setup:** for Claude Code:

```
claude mcp add --transport http fastaf https://api.fastaf.co/mcp --header "Authorization: Bearer $FASTAF_API_KEY"
```

Step-by-step setup for each client: [Claude Code](/integrations/claude-code/), [Cursor](/integrations/cursor/), [Vercel AI SDK](/integrations/vercel-ai-sdk/), [OpenAI Agents SDK](/integrations/openai-agents-sdk/) and [LangChain](/integrations/langchain/).

Other clients take the same URL and header, or sign in with OAuth. Listing the tools is public and needs no key; calling a tool needs a FastAF API key or an OAuth token. Every successful tool result reports `credits_used` and `credits_remaining`. See the [server card](https://api.fastaf.co/.well-known/mcp/server-card.json), the [MCP documentation](/docs/#mcp) and the [setup guide for Claude Code, Codex and Cursor](/how-to/add-fastaf-claude-code-codex-cursor/).

**Note:** MCP is not paid with x402. If your client loads too many tools, filter them on the client side; see [Too many MCP tools?](/how-to/mcp-tool-schema-bloat/).

## x402

**What it is:** 24 REST routes under `GET https://api.fastaf.co/x402/v1/<name>`, paid per successful call in USDC on Base, without an account or API key.

**Setup:** use any x402-aware client. The first request returns HTTP 402 with the exact price; the client signs and retries. Only successful calls settle. Google search costs $0.003 per call; every price is on the [x402 price list](/pricing/x402-price-list/). Discover the routes in the [x402 catalog](https://api.fastaf.co/.well-known/x402), or read [how x402 works](/x402/) and the [x402 documentation](/docs/#x402).

**When to use it:** autonomous agents with their own wallet and spending cap that should not hold an API key.

## Already using a Tavily SDK?

FastAF answers Tavily-style `/search` and `/extract` requests at `https://api.fastaf.co/tavily`. Keep the official Python or JavaScript SDK, change the base URL and use a FastAF API key, or pay per call with x402. See the [Tavily-compatible API](/integrations/tavily-compatible/) for examples, supported fields and prices.

## Which one should you pick?

*   A no-code workflow: n8n or Activepieces.
*   Web data for a coding assistant or a chat agent: MCP.
*   An agent that pays for itself: x402.

[Start free](/signup/) with an API key (500 free credits every month after email verification), or explore [all APIs](/apis/).