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

> ## Agent Instructions
> Melso product MCP: https://melso.ai/api/mcp (OAuth; one company per grant). REST: https://melso.ai. Documentation-search MCP: https://docs.melso.ai/mcp. The docs search server does not act on customer accounts.
>
> Use the live tool schema and respect company membership. Ask the person to authorize the exact fiscal document version in the signed-in app. A professional prepares and files included returns after authorization; AI does not file alone. A prepared file or approval receipt is not evidence of filing. Never claim completion from an accepted Task or Run. Keep credentials out of chat and logs. Agents features are internal or by private invitation.

# API changelog

> Dated additions to the public API reference.

<Info>Melso Agents is available only internally or by private invitation. Agents-specific features require existing access. For the autónomo fiscal service, see [Get started](/essentials/quickstart).</Info>

## 2026-10-12 — Initial public reference

The public reference documents Task creation and follow-up input, Run outcomes, resumable Task events, signed webhook delivery and company-bound MCP OAuth connections.

Use the endpoint pages for request and response schemas, and the [tool catalog](/mcp/tools) for MCP discovery and availability. Shared conventions cover [authentication](/api-reference/authentication), [errors](/api-reference/errors), [retry keys](/api-reference/idempotency) and [pagination](/api-reference/pagination).

This entry dates the initial integration reference; it does not announce a new API version or a server deployment. The [documentation changelog](/changelog/index) covers the wider guides and site.


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