> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meridian.surf/llms.txt
> Use this file to discover all available pages before exploring further.

# API

> Make HTTP or third-party API requests from your flow.

The API block sends HTTP requests to external services from your flow.

## What it does

Configure method, URL, headers, query params, and body in the request builder. Responses can be stored in variables for use in later blocks.

## Configuration

Open the block in the builder sidebar to configure these fields.

### `edit_request`

**Type:** `button`. Required.

Open the request builder for method, URL, auth headers, and JSON body.

### `save_response`

**Type:** `string`.

Base variable name. Access nested fields like `{myApi.response.data.id}` and headers like `{myApi.headers.content-type}`.

## Example workflow

1. **Build the request** — Set URL, method, and body. Use variables for dynamic tokens or ids.
2. **Save the response** — Pick a variable prefix to read status, headers, and JSON body later.
3. **Branch on status** — Follow with an If statement checking response variables.

## Tips

* Store API keys in Storage variables instead of pasting secrets directly into the request builder.

## See also

* [API & Third Party](/builder/action-blocks/api-and-third-party) — Browse all blocks in the API & Third Party category.