papyr_leer_factura
Reads a European e-invoice: who invoiced whom, how much, and whether the figures add up. Detects the format by itself.
Your assistant, reading invoices for real
On its own, your assistant can’t verify the arithmetic of a Portuguese QR code, open an Italian .p7m or check that a Verifactu chain links up. With this connector, it can ask us.
Getting started
- Paste the address below into your assistant, as a connector (remote MCP server).
- Sign in with your AIM PAPYR account when it asks: you get a link by email. If you don’t have an account yet, it’s created as you sign in, free and with no card.
- Ask it something: “read this invoice”, “what do I owe in France?”, “check this QR before I pay”.
The address
https://www.aim-papyr.ai/mcp
Your assistant asks you to sign in with your account (OAuth): there’s no key to copy. If your client doesn’t support OAuth, create a key in your account and send it in the Authorization: Bearer papyr_sk_… header.
Where it works today
| Client | Status | How |
|---|---|---|
| Claude | full | Settings → Connectors → Add custom connector |
| ChatGPT | full | Settings → Connectors, in developer mode |
| Gemini | partial | Accepts remote URLs but needs a bridge: it isn’t a full MCP client yet |
That’s two and a half, not three. Saying so saves someone an afternoon.
What it can do
papyr_comprobar_cadena_verifactu
Checks that a chain of Verifactu invoicing records is complete: each record is linked to the previous one by a SHA-256 hash.
papyr_analizar_qr_fiscal
Checks an invoice’s fiscal QR code —Verifactu, TicketBAI or Portugal’s— against what the paper says.
papyr_validar_identificador_fiscal
Validates a Spanish tax ID (NIF, CIF or NIE) or an EU VAT number from any of the 27 member states.
papyr_comprobar_cuenta_de_pago
Checks an invoice’s IBAN before you pay: invoice fraud doesn’t forge the VAT, it changes the account number.
papyr_plazos_fiscales
Which tax obligations fall due and when, in Spain, France, Germany, Italy and Portugal.
papyr_borrador_303
From a quarter’s invoices, places the figures in the boxes of Spain’s Form 303 (VAT return).
papyr_buscar_licitaciones
Searches Spain’s public tenders still open today by words, CPV, place, type, amount, contracting body and days to the deadline.
papyr_licitacion
One tender: deadline, budget, award criteria and their weight, lots, tender documents and the discounts in similar awarded contracts.
papyr_buscar_ayudas
Searches Spanish public grants open today for SMEs, by words in the title, the body or the purpose; each with its page and the page that prepares the application.
papyr_ayuda
One public grant: deadline, budget, beneficiaries, de minimis regime, the documents the rules ask for, where to apply and what kind of companies usually get it.
papyr_organo_o_empresa
A contracting body or a winning company by its tax ID: how much, at what discount, against how much competition, and with whom.
And three whole jobs
Single tools leave it to your assistant to work out the order. These flows turn it into one request — and say where to stop, which is what matters most in anything fiscal.
Close the VAT quarterReads a batch of invoices, checks they add up and prepares the draft Form 303. For Spain.
Check invoices before paying themChecks the fiscal QR against the paper and the IBAN against the supplier’s country. Catches the tampered invoice.
What I owe and whenYour country’s tax obligations: those in force and those coming, with their source.
What it costs
These 12 tools run on fixed rules: they read, calculate and compare. They count against the same plan quota as the website —there’s no separate meter— and every reply tells you where you stand.
The only difference from the website: there you can use the tools without signing up; here you need an account, which is free. See plans.
What we return is labelled. When we read an invoice we separate what the document says from what we say. An invoice is written by a third party and can carry, in its description, a sentence aimed at the assistant reading it. Our engine computes the verdict from the arithmetic, not from the text.
AIM PAPYR reads and checks documents. It files nothing with any authority, is not an invoicing system or an accredited platform, and does not replace an adviser.