A-Cube MCP by usefulapi
REMOTE · ACUBE.USEFULAPI.IO
Read Italian invoices, receipts and SDI notices; validate, prepare and submit agreed drafts.
Available components
Last scanned (22 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 4 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 1 Nov 26 −47
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 31 Oct 26 65
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Probed https://acube.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of acube.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 302 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://acube.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/acube/ |
| http (plaintext) | http://acube.usefulapi.io/mcp | Inconclusive | 302 | http://acube.usefulapi.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
acube_create_draft_invoice Create a draft invoice ~241
WRITE: saves a new invoice as a DRAFT in A-Cube. Nothing is sent to the SDI until acube_send_draft_invoice. Not idempotent: calling it twice creates two drafts. Validate first with acube_validate_invoice. POST /invoices/draft.
| Name | Type | Req | Description |
|---|---|---|---|
| fattura_elettronica_body | array | yes | Exactly one invoice body (an array with one object), snake_case keys: dati_generali (dati_generali_documento...), dati_beni_servizi (dettaglio_linee, dati_riepilogo), optional dati_pagamento. Field n… |
| fattura_elettronica_header | object | – | FatturaPA header as A-Cube JSON (snake_case keys): dati_trasmissione (codice_destinatario, pec_destinatario), cedente_prestatore (seller), cessionario_committente (buyer). Give the full header (selle… |
No output schema declared.
No examples provided.
acube_delete_draft_invoice Delete a draft invoice ~83
WRITE: permanently deletes a draft invoice (a draft only: a sent invoice answers 409). Without confirm: true it only returns the draft. DELETE /invoices/draft/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | – | Must be true to actually delete. Otherwise the draft is returned as a preview. |
| uuid | string | yes | The draft invoice uuid. |
No output schema declared.
No examples provided.
acube_get_business_registry_configuration Get a business registry configuration ~61
One business by fiscal id: name, email, enabled services and its webhook configurations. GET /business-registry-configurations/{fiscalId}.
| Name | Type | Req | Description |
|---|---|---|---|
| fiscal_id | string | yes | The business's fiscal id (codice fiscale or partita IVA). |
No output schema declared.
No examples provided.
acube_get_current_numbering_sequence Get the current numbering sequence ~60
The sequence now in use for a sequence name. Its number is the LAST number used: the next invoice gets that number plus one. GET /numbering-sequences/current/{name}.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | The sequence name. |
No output schema declared.
No examples provided.
acube_get_draft_invoice Get a draft invoice ~47
One draft invoice by uuid, with its FatturaPA JSON content. GET /invoices/draft/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The draft invoice uuid. |
No output schema declared.
No examples provided.
acube_get_invoice Get an invoice ~81
One invoice by uuid: metadata plus the FatturaPA JSON payload (parties, lines, VAT, payment), or the XML file sent to the SDI. GET /invoices/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | json (default) or xml. |
| uuid | string | yes | The invoice uuid (from acube_list_invoices). |
No output schema declared.
No examples provided.
acube_get_invoice_stats Get invoice statistics ~87
Counters of invoices and notifications for a year (annual; monthly or daily detail only if A-Cube activated it), for the whole account or one fiscal id. GET /invoices/stats/{year}.
| Name | Type | Req | Description |
|---|---|---|---|
| fiscal_id | string | – | Only this customer's fiscal id (a business registry configuration). |
| year | integer | yes | The year, e.g. 2026. |
No output schema declared.
No examples provided.
acube_get_job Get a background job ~43
One background job by uuid with its status and result. GET /jobs/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The job uuid (from acube_list_jobs). |
No output schema declared.
No examples provided.
acube_get_notification Get an SDI notification ~44
One SDI notification by uuid, with its payload. GET /notifications/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The notification uuid (from acube_list_invoice_notifications). |
No output schema declared.
No examples provided.
acube_get_receipt Get an electronic receipt ~71
One electronic receipt by uuid: type, status, number, date, total and links to voiding or returned receipts (no line items: use acube_get_receipt_details). GET /receipts/{uuid}.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The receipt uuid (from acube_list_receipts). |
No output schema declared.
No examples provided.
acube_get_receipt_details Get electronic receipt details ~53
The line items and VAT, discount and taxable totals of one electronic receipt. GET /receipts/{uuid}/details.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The receipt uuid (from acube_list_receipts). |
No output schema declared.
No examples provided.
acube_get_recipient_code Get the SDI recipient code ~47
The account's 7-character SDI recipient code (codice destinatario), the address customers put on invoices they send to you. GET /users/me/recipient-code.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
acube_list_business_registry_configurations List business registry configurations ~182
The businesses (fiscal ids) set up on the account, with which services are on: customer invoices, supplier invoices, receipts, signature, legal storage. GET /business-registry-configurations.
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | Contact email. | |
| fiscal_id | string | – | Exact fiscal id. |
| items_per_page | integer | – | Items per page, 1 to 100 (default 30). A full page means there may be more: ask for the next page. |
| name | string | – | Business name (partial match). |
| page | integer | – | Page number, from 1 (default 1). |
| receipts_enabled | boolean | – | Only businesses with electronic receipts on (true) or off (false). |
| supplier_invoice_enabled | boolean | – | Only businesses that receive supplier invoices (true) or not (false). |
No output schema declared.
No examples provided.
acube_list_draft_invoices List draft invoices ~154
Draft invoices that were created but not yet sent to the SDI. Same filters as acube_list_invoices. GET /invoices/draft.
| Name | Type | Req | Description |
|---|---|---|---|
| invoice_date_from | string | – | Invoice date on or after this day. |
| invoice_date_to | string | – | Invoice date on or before this day. |
| invoice_number | string | – | Exact invoice number. |
| items_per_page | integer | – | Items per page, 1 to 30 (default 30). A full page means there may be more: ask for the next page. |
| page | integer | – | Page number, from 1 (default 1). |
| recipient_name | string | – | Recipient business name (partial match). |
No output schema declared.
No examples provided.
acube_list_invoice_notifications List an invoice's SDI notifications ~75
The SDI notifications of one invoice (delivery receipt RC, rejection NS, outcome NE, failed delivery MC, deadline expiry DT...), with their type, date and status: how you tell whether an invoice was delivered or rejected. GET /invoices/{uuid}/notifications.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | The invoice uuid. |
No output schema declared.
No examples provided.
acube_list_invoices List invoices ~374
Sent and received Italian e-invoices (SDI) of the account: uuid, invoice number and date, document type (TD01...), sender and recipient, amounts, marking and notification status. Filter by date, number, document type, party name or VAT number. GET /invoices.
| Name | Type | Req | Description |
|---|---|---|---|
| created_from | string | – | Created in A-Cube on or after this day. |
| created_to | string | – | Created in A-Cube on or before this day. |
| document_type | string | – | SDI document type, e.g. TD01 (invoice), TD04 (credit note), TD17-TD19 (reverse-charge self-invoices). |
| downloaded | boolean | – | Only invoices already downloaded (true) or not yet (false). |
| invoice_date_from | string | – | Invoice date on or after this day. |
| invoice_date_to | string | – | Invoice date on or before this day. |
| invoice_number | string | – | Exact invoice number. |
| items_per_page | integer | – | Items per page, 1 to 30 (default 30). A full page means there may be more: ask for the next page. |
| order | string | – | Sort direction (default desc). |
| order_by | string | – | Sort field (default invoice_date). |
| page | integer | – | Page number, from 1 (default 1). |
| recipient_name | string | – | Recipient business name (partial match). |
| recipient_vat_number | string | – | Recipient VAT number code (digits, without the country prefix). |
| sender_name | string | – | Sender business name (partial match). |
| sender_vat_number | string | – | Sender VAT number code (digits, without the country prefix). |
| signed | boolean | – | Only signed (true) or unsigned (false) invoices. |
No output schema declared.
No examples provided.
acube_list_jobs List background jobs ~133
Background jobs (invoice, report and zip downloads, F24 and daily receipt report downloads) with status ready, started, completed or error. GET /jobs.
| Name | Type | Req | Description |
|---|---|---|---|
| fiscal_id | string | – | Only this business's jobs. |
| items_per_page | integer | – | Items per page, 1 to 30 (default 30). A full page means there may be more: ask for the next page. |
| job_type | string | – | Only this job type. |
| page | integer | – | Page number, from 1 (default 1). |
| status | string | – | Only jobs in this status. |
No output schema declared.
No examples provided.
acube_list_numbering_sequences List numbering sequences ~107
The invoice numbering sequences (name, year, last number). GET /numbering-sequences.
| Name | Type | Req | Description |
|---|---|---|---|
| items_per_page | integer | – | Items per page, 1 to 100 (default 30). A full page means there may be more: ask for the next page. |
| page | integer | – | Page number, from 1 (default 1). |
| sequence_name | string | – | Only this sequence name. |
| year | integer | – | Only this year. |
No output schema declared.
No examples provided.
acube_list_receipts List electronic receipts ~190
Electronic commercial receipts (scontrini) with number, date, status, type (sale, void, return) and totals. GET /receipts.
| Name | Type | Req | Description |
|---|---|---|---|
| document_date_from | string | – | Receipt date on or after this day. |
| document_date_to | string | – | Receipt date on or before this day. |
| document_number | string | – | Exact receipt document number. |
| fiscal_id | string | – | Only this business's receipts (its fiscal id). |
| items_per_page | integer | – | Items per page, 1 to 100 (default 30). A full page means there may be more: ask for the next page. |
| page | integer | – | Page number, from 1 (default 1). |
| status | string | – | Receipt status, as shown in the list. |
| type | string | – | Receipt type, e.g. sale, void, return. |
No output schema declared.
No examples provided.
acube_list_webhooks List webhook configurations ~111
The webhooks (events and target URLs) configured on the account. Authentication keys and tokens are never returned. GET /api-configurations.
| Name | Type | Req | Description |
|---|---|---|---|
| fiscal_id | string | – | Only webhooks of this business (fiscal id). |
| items_per_page | integer | – | Items per page, 1 to 30 (default 30). A full page means there may be more: ask for the next page. |
| page | integer | – | Page number, from 1 (default 1). |
No output schema declared.
No examples provided.
acube_send_draft_invoice Send a draft invoice to the SDI ~130
WRITE: accepts a draft and transmits it to the Sistema di Interscambio. This is a legal act: a sent e-invoice cannot be recalled (only corrected with a credit note) and may be billed by A-Cube. Without confirm: true it only returns the draft for review. Show the draft to the user and get their explicit OK first. POST /invoices/draft/{uuid}/send.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | – | Must be true to actually send. Otherwise the draft is returned as a preview. |
| uuid | string | yes | The draft invoice uuid. |
No output schema declared.
No examples provided.
acube_validate_invoice Validate an invoice (no save) ~216
Checks an invoice against the FatturaPA rules without creating or sending anything; returns the validation result or A-Cube's errors. POST /invoices/validate.
| Name | Type | Req | Description |
|---|---|---|---|
| fattura_elettronica_body | array | yes | Exactly one invoice body (an array with one object), snake_case keys: dati_generali (dati_generali_documento...), dati_beni_servizi (dettaglio_linee, dati_riepilogo), optional dati_pagamento. Field n… |
| fattura_elettronica_header | object | – | FatturaPA header as A-Cube JSON (snake_case keys): dati_trasmissione (codice_destinatario, pec_destinatario), cedente_prestatore (seller), cessionario_committente (buyer). Give the full header (selle… |
No output schema declared.
No examples provided.
acube_verify_company Look up an Italian company ~74
Basic registry data of an Italian company by VAT number (name, address, status), optionally with the split-payment check. GET /verify/company/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| check_split_payment | boolean | – | Also tell whether the company is subject to split payment. |
| id | string | yes | The company's VAT number or fiscal id. |
No output schema declared.
No examples provided.
acube_verify_fiscal_id Check a fiscal id ~56
Checks whether a codice fiscale or partita IVA is valid. GET /verify/fiscal-id/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The fiscal id or VAT number to check, e.g. 12345678901. |
No output schema declared.
No examples provided.
How do I install the A-Cube MCP by usefulapi server?
A-Cube MCP by usefulapi is a hosted endpoint at https://acube.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · acube.usefulapi.io
claude mcp add --transport http io-usefulapi-acube 'https://acube.usefulapi.io/mcp'
What is the A-Cube MCP by usefulapi server?
A-Cube MCP by usefulapi is listed in the public MCP registry as io.usefulapi/acube. Read Italian invoices, receipts and SDI notices; validate, prepare and submit agreed drafts. This page covers its hosted endpoint (https://acube.usefulapi.io/mcp).
Is the A-Cube MCP by usefulapi server safe to use?
A-Cube MCP by usefulapi scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the A-Cube MCP by usefulapi server expose?
A-Cube MCP by usefulapi exposes 24 tools: acube_list_invoices, acube_get_invoice, acube_list_invoice_notifications, acube_get_notification, acube_get_invoice_stats, and 19 more. Their descriptions and schemas cost roughly 2,720 tokens of context every time the server is loaded.
Does the A-Cube MCP by usefulapi server require authentication?
Its publisher declares no required credentials for A-Cube MCP by usefulapi. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the A-Cube MCP by usefulapi server still maintained?
A-Cube MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.