io.usefulapi/smallinvoice · v1.1.0 · sales-and-crm
smallinvoice MCP by usefulapi is healthy: it completed an MCP handshake in 1633 ms and exposes 27 tools.
Read smallinvoice contacts, invoices, offers, projects and hours; create contacts and invoices.
Endpoint: https://smallinvoice.usefulapi.io/mcp (streamable-http)
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| Users (last 30 days) | 0 |
| Handshake | Healthy |
| Auth needed | None |
| Tool count | 27 |
| Latency | 1633 ms |
| Last checked (UTC) | 2026-10-25T23:55:14.885Z |
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-25T23:55:14.885Z | Healthy | 1633 |
smallinvoice_get_owner | The smallinvoice account the API client belongs to (the owner's id and details). A cheap check that the connection works. GET /auth/owner. |
smallinvoice_list_contacts | List contacts (customers and suppliers): name, type (company or person), relation, e-mail, currency. Add with=main_address for the address. Needs the "contact" scope. GET /contacts. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_contact | One contact by id, with its fields. Add with=main_address for the main address. Needs the "contact" scope. GET /contacts/{id}. |
smallinvoice_list_contact_addresses | All addresses of one contact. Needs the "contact" scope. GET /contacts/{contactId}/addresses. |
smallinvoice_list_contact_people | The contact persons of one company contact. Needs the "contact" scope. GET /contacts/{contactId}/people. |
smallinvoice_list_contact_groups | List the contact groups. Needs the "contact" scope. GET /contacts/configuration/groups. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_invoices | List invoices: number, contact, dates, total, currency, status. Filter by contact_id or a JSON filter. Needs the "invoice" scope. GET /receivables/invoices. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_invoice | One invoice by id with its positions, totals and status. Needs the "invoice" scope. GET /receivables/invoices/{id}. |
smallinvoice_list_invoice_payments | The payments recorded on one invoice. Needs the "invoice" scope. GET /receivables/invoices/{invoiceId}/payments. |
smallinvoice_list_offers | List offers (quotes). Filter by contact_id or a JSON filter. Needs the "offer" scope. GET /receivables/offers. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_offer | One offer (quote) by id with its positions and totals. Needs the "offer" scope. GET /receivables/offers/{id}. |
smallinvoice_list_order_confirmations | List order confirmations. Filter by contact_id or a JSON filter. Needs the "order_confirmation" scope. GET /receivables/order-confirmations. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_order_confirmation | One order confirmation by id. Needs the "order_confirmation" scope. GET /receivables/order-confirmations/{id}. |
smallinvoice_list_delivery_notes | List delivery notes. Filter by contact_id or a JSON filter. Needs the "delivery_note" scope. GET /receivables/delivery-notes. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_delivery_note | One delivery note by id. Needs the "delivery_note" scope. GET /receivables/delivery-notes/{id}. |
smallinvoice_list_products | List the catalog's products (articles). Needs the "catalog" scope. GET /catalog/products. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_services | List the catalog's services. Needs the "catalog" scope. GET /catalog/services. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_units | List the units (piece, hour, ...) with their ids, which an invoice position's unit_id refers to. Needs the "configuration" scope. GET /catalog/configuration/units. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_bank_accounts | List the account's bank accounts (as printed on documents). Needs the "configuration" scope. GET /configuration/bank-accounts. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_projects | List projects. Needs the "project" scope. GET /reporting/projects. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_get_project | One project by id. Needs the "project" scope. GET /reporting/projects/{id}. |
smallinvoice_list_working_hours | List recorded working hours (time tracking entries). Needs the "working_hours" scope. GET /reporting/working-hours. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_efforts | List efforts (expenses and services recorded against projects). Needs the "effort" scope. GET /reporting/efforts. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_activities | List activities (the kinds of work that hours are booked on). Needs the "activity" scope. GET /reporting/activities. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_list_cost_units | List cost units. Needs the "cost_unit" scope. GET /reporting/cost-units. Returns count, total, next_offset (pass it as offset for the next page) and the items. |
smallinvoice_create_contact | WRITE: creates a new company contact (customer) in smallinvoice, with its main address. Needs the "contact" scope. POST /contacts. Nothing is sent to anyone. Private persons are not supported here (smallinvoice needs more fields for them): create those in smallinvoice. Check smallinvoice_list_contac |
smallinvoice_create_invoice | WRITE: creates a new invoice for a contact. Needs the "invoice" scope. POST /receivables/invoices. It is only created: it is NOT sent by e-mail or post and its status is not changed; the user reviews it in smallinvoice. Not idempotent: calling it twice creates two invoices. Use smallinvoice_list_con |