The Mambu Payments API docs let you explore endpoints, test requests against the sandbox, and download OpenAPI specs – all from docs.numeral.io.

Sandbox integration

You can make authenticated API requests directly from any endpoint page. Add your sandbox API key in the Credentials section, fill in the request parameters, and send a request to get a live response.

OpenAPI specification

Download the Mambu Payments OpenAPI specs at docs.numeral.io/openapi. Use them to generate client libraries, validate requests, or import endpoints into tools like Postman.

Ask AI

Every page in the docs includes an Ask AI button. Click it to open a conversational assistant trained on the Mambu Payments documentation. Ask questions about any endpoint, concept, or integration pattern and get an answer with links to the relevant doc pages.

Markdown export

Append .md to any documentation URL to get its content as plain Markdown. For example:

https://docs.numeral.io/docs/payment-order-object.md

This is useful for feeding doc pages into LLMs, copying content into internal tools, or building automations on top of the documentation.

MCP server

The Mambu Payments MCP (model context protocol) server lets AI-powered code editors like Cursor and Windsurf interact directly with the API docs.

The server is hosted at https://docs.numeral.io/mcp. Add it to your editor's MCP configuration:

Add to~/.cursor/mcp.json:

{
  "mcpServers": {
    "numeral": {
      "url": "https://docs.numeral.io/mcp"
    }
  }
}

To test the connection:

Open a new chat in your AI editor.
Ask a question about Mambu Payments (e.g., "How do I create a payment order?" or "Show me an example of the returns endpoint").

If the MCP server is configured correctly, the assistant responds using your API docs and account data.

Release notes

Release notes are published at docs.numeral.io/changelog. Subscribe via the RSS feed to get notified of new releases.