Feature

Connect any API
as a tool.

Turn any REST API into a tool your agents can use. Define the endpoint, set up auth, and your agent gets a new capability — no code required.

How to Add Custom API Tools on Macha

GET api.example.com/v1/orders/{{order_id}}

Auth Bearer Token

Params order_id (required, string)

Name Get Order Details

Define your endpoint.

Any HTTP method

GET, POST, PUT, PATCH, DELETE — connect to any REST API endpoint.
Flexible authentication

API key, bearer token, or basic auth. Credentials are encrypted and never exposed.
URL and body parameters

Define path parameters, query strings, and request bodies. The AI fills them in at runtime.

Describe the API

"Connect to Postmark and add tools for sending emails and listing templates."
AI discovers and tests endpoints

The builder finds the right endpoints, tests them with your credentials, and creates the tools.
Auto-grouped under a connector

Tools are automatically organized under a named connector with icon and brand color.

Created 3 tools for Postmark:

List Postmark Templates

Send Postmark Email

Get Postmark Message Details

Test Endpoint 200 OK

Response:
{ "id": 4821,
"status": "pending",
"total": "$49.99" }

Built-in endpoint testing

Send a test request directly from the tool editor. See the response before assigning to an agent.
Verify authentication

Make sure your API key or token works before the agent tries to use it.

Custom connectors

Group tools under a named connector with a custom icon and brand color.
Appears in your connectors page

Custom tool groups show alongside native integrations on the connectors page.
Assign to any agent

Custom tools work exactly like native integration tools. Add them to any agent.