> For the complete documentation index, see [llms.txt](https://docs.americanspend.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.americanspend.com/products/api.md).

# API

The same reads as MCP, over HTTP.

The API is the same Spend Graph reads as [MCP](/products/mcp.md), over HTTP. Counts, dollar sums, and distinct-account estimates, by merchant, category, place, and time. There are no transaction rows and no account identifiers.

```
https://platform.americanspend.com/v1/insights
```

Send a bearer API key on each request. Your key is on the [keys page](https://www.americanspend.com/dashboard/keys/). The calls match the [MCP Methods](/mcp-methods.md): `query_spend` is `GET /query`, `search_merchants` is `GET /merchants/search`, and the rest follow the same way. Arguments are query parameters with those names.

Without an account, the read endpoints take the same pay-per-call path as MCP. See [Without an account](/pricing/without-an-account.md).

The OpenAPI spec is [platform.americanspend.com/v1/openapi.yaml](https://platform.americanspend.com/v1/openapi.yaml).


---

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