Melso Agents is available only internally or by private invitation. Agents-specific features require existing access. For the autónomo fiscal service, see Get started.
Base URL
SetMELSO_URL=https://melso.ai, with no trailing slash or /api suffix. Append each complete route to that origin: GET /api/me becomes $MELSO_URL/api/me. OAuth and metadata routes use the same origin with their own paths, such as $MELSO_URL/.well-known/oauth-authorization-server.
List responses have no universal envelope. Check the operation schema and Pagination for the list you need.
Send your first request
Make a read-only call, then confirm funding before starting work.
Choose a credential
Company keys, personal tokens, Run tokens and MCP OAuth have different authority.
Receive events
Verify signatures and process deliveries safely.
Use MCP
Query fiscal records, register expenses and prepare invoices with explicit consent.
Read the contract before writing
Each endpoint page is generated from the OpenAPI document. Where an operation accepts a dynamic payload, the reference says which catalog supplies its schema. A company is represented asworkspace_id in the API. Preserve that identifier in requests even though the product calls it a company. JSON fields are case-sensitive.
Successful creation means a resource or execution request was accepted. Follow the Run and read its output to determine whether work completed. For fiscal work, preparation and professional review precede authorization of the exact version in the signed-in app. The state remains Autorizado · en revisión (authorized, under review) until a professional records the actual filing result. Check the external reference and receipt.