A-Cube MCP by usefulapi

A-Cube MCP by usefulapi

Connect

• Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://acube.usefulapi.io/mcp.
• Claude Code: claude mcp add --transport http acube https://acube.usefulapi.io/mcp, then run /mcp to log in.
• VS Code: Add to VS Code.
• Cursor and other clients: add the URL as a remote MCP server:

{
  "mcpServers": {
    "acube": {
      "url": "https://acube.usefulapi.io/mcp"
    }
  }
}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your A-Cube credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/acube/

Tools

Tool	Type	What it does
acube_list_invoices	read	List invoices
acube_get_invoice	read	Get an invoice
acube_list_invoice_notifications	read	List an invoice's SDI notifications
acube_get_notification	read	Get an SDI notification
acube_get_invoice_stats	read	Get invoice statistics
acube_list_draft_invoices	read	List draft invoices
acube_get_draft_invoice	read	Get a draft invoice
acube_validate_invoice	read	Validate an invoice (no save)
acube_create_draft_invoice	write	Create a draft invoice
acube_send_draft_invoice	write	Send a draft invoice to the SDI
acube_delete_draft_invoice	write	Delete a draft invoice
acube_list_receipts	read	List electronic receipts
acube_get_receipt	read	Get an electronic receipt
acube_get_receipt_details	read	Get electronic receipt details
acube_list_business_registry_configurations	read	List business registry configurations
acube_get_business_registry_configuration	read	Get a business registry configuration
acube_list_webhooks	read	List webhook configurations
acube_list_numbering_sequences	read	List numbering sequences
acube_get_current_numbering_sequence	read	Get the current numbering sequence
acube_list_jobs	read	List background jobs
acube_get_job	read	Get a background job
acube_verify_fiscal_id	read	Check a fiscal id
acube_verify_company	read	Look up an Italian company
acube_get_recipient_code	read	Get the SDI recipient code
acube_usage_status	meta	Usage status (free-tier meter)
acube_request_feature	meta	Request a missing feature
acube_upgrade	meta	Upgrade to Pro or Pro+
acube_cancel_subscription	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

Plan	Price	Limit
Free (per A-Cube account)	$0	50 tool calls / month
Pro (per A-Cube account)	$9/mo or $90/yr (2 months free)	Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with acube_upgrade (it returns a Stripe Checkout link). Cancel any time with acube_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running acube_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT

Account access and data

Use your licensed A-Cube API account and select sandbox or production. Your production Italy API contract must permit this hosted connection. Customer onboarding, vendor subscriptions and fiscal processing charges remain separate. No vendor app approval or endorsement is claimed.

Your password is sent only for this sign-in and is not stored in the hosted connection. Only the vendor JWT, email, environment, expiry and billing identity are retained encrypted. Vendor tokens last up to24hours; reconnect on expiry or revocation. There is no silent password login or invented refresh endpoint. Disconnect UsefulAPI to stop this connection; an issued JWT may remain valid until A-Cube expires or revokes it. Billing follows the validated account UID, normally across password changes and environments.

Requested fiscal invoices, tax identifiers, receipts and business records reach your connected AI client and LLM provider. Connect only data you are authorized to process there.

Draft creation saves a draft without transmission. Submission and deletion require explicit confirmation; without it, the tools return a preview. Production submission is a legal act and may incur charges. A-Cube's acknowledgement means accepted for transmission, not confirmed SDI delivery: check invoice notifications. After an uncertain result, check A-Cube before repeating. No operation is automatically replayed.

All24tools were checked against current API specifications and local mocks. Synthetic invoice test data matches required fields/types but is not a legally validated invoice. No real customer data, SDI submissions, receipts or charges were tested.