Holded integration for AI agents.
Holded integration for AI agents with secure authentication and server-side credential injection. Open Connector runs the OAuth, seals the token in an encrypted vault, and serves Holded tools to your agent over MCP or a typed API — credentials injected server-side, every call audited, nothing leaving your infrastructure. Open source (AGPL-3.0) and self-hostable.
Real Holded actions, managed and audited.
Your user connects Holded once; your agent can then use Holded to manage invoicing contacts, products, invoices, and sales receipts — scoped to the OAuth permissions you grant and the tool allowlist you configure. Every action is least-privilege and written to a tamper-evident audit trail.
- 1
Your user grants Holded access once (OAuth) — the token lands in the vault.
- 2
Your agent calls a tool over MCP or the typed API; Open Connector injects the credential server-side.
- 3
Every routed call appends a hash-chained audit record — nothing leaves your infra.
Supported Holded tools.
20 tools are generated from the published Holded catalog. Descriptions are plain text; each action remains subject to its configured authentication and tool allowlist.
Showing 20 tools. All published catalog entries are included in this page's server-rendered HTML.
- Create a Holded contact
- Create a Holded contact.
- createcontact
- Create a Holded invoice
- Create a Holded invoice.
- createinvoice
- Create a Holded product
- Create a Holded product.
- createproduct
- Create a Holded salesreceipt
- Create a Holded salesreceipt.
- createsalesreceipt
- Delete a Holded contact
- Delete a Holded contact.
- deletecontact
- Delete a Holded invoice
- Delete a Holded invoice.
- deleteinvoice
- Delete a Holded product
- Delete a Holded product.
- deleteproduct
- Delete a Holded salesreceipt
- Delete a Holded salesreceipt.
- deletesalesreceipt
- Get a Holded contact
- Retrieve a Holded contact by ID.
- getcontact
- Get a Holded invoice
- Retrieve a Holded invoice by ID.
- getinvoice
- Get a Holded product
- Retrieve a Holded product by ID.
- getproduct
- Get a Holded salesreceipt
- Retrieve a Holded salesreceipt by ID.
- getsalesreceipt
- List Holded contacts
- List Holded contacts.
- listcontacts
- List Holded invoices
- List Holded invoices.
- listinvoices
- List Holded products
- List Holded products.
- listproducts
- List Holded salesreceipts
- List Holded salesreceipts.
- listsalesreceipts
- Update a Holded contact
- Update a Holded contact.
- updatecontact
- Update a Holded invoice
- Update a Holded invoice.
- updateinvoice
- Update a Holded product
- Update a Holded product.
- updateproduct
- Update a Holded salesreceipt
- Update a Holded salesreceipt.
- updatesalesreceipt
Holded integration, answered
- How do AI agents use Holded through Open Connector?
- Your user connects Holded once with one of its cataloged authentication methods. Open Connector stores the credential in an encrypted vault and exposes Holded tools to your agent over MCP or a typed API, with credentials injected server-side on each call.
- Is this a Holded MCP server?
- Yes. Open Connector can serve Holded as a named MCP server with a scoped allowlist and a per-user connection URL, so any MCP client can call Holded actions with credentials injected server-side.
- Where do Holded credentials live?
- In your own infrastructure. Open Connector keeps credentials in its own vault and injects them at call time, so they never leave your environment.
Give your agents Holded — keep the keys.
Open source, self-hostable, with Holded credentials that never leave your infrastructure. Run it from source today.