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Legal software · for individuals, businesses and legal professionals

Your legal problem, made clear with the law in hand.

Tell it what you have received or what is happening to you. AIM LEX explains what it is, what you need to do and by when, and drafts your reply. Every article, checked against Spain's Official Gazette (BOE).

Start from an example:

Free, no account needed, and your text is not stored. It runs on artificial intelligence, with the official legislation in front of it.

Are you a lawyer, tax adviser or agent? Check the citations in a brief for free: whether they exist, whether they are in force and whether they say what you claim.

Already have an account? Log in.

Your letter, explained a traffic fine
Your deadlineArt. 93 · BOE

Twenty calendar days from notification, weekends and holidays included.

If you pay within that timeArt. 94 · BOE

You pay half, but you can no longer object.

If you disagreeArt. 95 · BOE

You submit your objections and evidence within those same twenty days.

What was missing between searching online and a lawyer.

  • Searching online

    Fast and free, but you do not know whether it is true, still in force, or whether the article even exists.

  • AIM LEX

    In minutes and from €6.99 a month: what it is, what to do and by when, every article checked against the BOE. And it tells you when your case needs a lawyer.

    Start for free →

  • A lawyer

    Essential when there is a trial or a lot at stake. And if you are the lawyer, AIM LEX is your tool: every citation in your brief, checked before you sign.

For lawyers, tax advisers and agents

Before you sign a brief, check every citation.

Every statute and every judgment, against its official source: whether it exists, whether it is in force and whether it says what you claim. What it cannot verify, it never passes as good.

Or try:

Free, no account, and your text is not stored. It runs on artificial intelligence; every verdict rests on the official text, and is explained in Spanish, the language of the law it checks.

Checking a brief three citations, against the BOE
Estatuto de los Trabajadores, art. 34.1Verified
La duración de la jornada de trabajo será la pactada en los convenios colectivos o contratos de trabajo.
Código Civil, art. 1976 bisDoes not exist

Not in the official text: the Civil Code ends at article 1976.

Ley 18/2007, disposición adicional terceraRepealed

No effect since 2 January 2016.

Three questions for every citation, against the official text.

It trusts no one's memory, not even its own: it reads the official source every time.

  1. Does it exist?

    It looks up the statute or the judgment in its official source. If the article is not in the published text, or the judgment could not have been handed down when the citation says, it is rejected.

    Código Civil, art. 1976 bisDoes not exist

    The BOE's official index does not contain it: the Civil Code ends at article 1976.

    STC 45/1975Rejected

    The Constitutional Court was set up in 1980 and handed down its first judgments in 1981.

  2. Is it in force?

    It checks which wording applies today, since when and under which law. An earlier wording or a repealed statute does not pass as current.

    One article, several wordings · only one applies today Loading a real example from the corpus…

      A general-purpose AI may quote you any of them. AIM LEX quotes the one in force, and tells you since when and under which law.

    1. Does it say what you claim?

      It compares what the brief states with the official text. If the deadline, the amount or the percentage is not what the law says, the citation does not go green.

      Blocking verification · on every citation
      The brief states: «el plazo de garantía legal de un producto nuevo es de tres años desde la entrega»
      ↓  checked against the official fragment
      ✓ literal match art. 120 TRLGDCU · RDL 1/2007 · BOE-A-2007-20555 · vigente

      If this check fails, the citation is not issued: it is a design condition, not a mode that can be switched off.

    So they don't have to take your word for it either

    When you check the citations of a brief, the receipt carries a QR code. Whoever scans it — a judge, the other side or your client — opens a public page showing what was checked, when and with what result. Without seeing your text: only its SHA-256 fingerprint is published.

    And if a citation came out rejected, the seal says so too: hiding it would make the seal worthless the first day someone checked it.

    Everything AIM LEX does: 85 tools

    Claim a debt, or from a seller in another EU country; sort out an inheritance; rehearse a cross-examination; get guided through a tax or labour inspection; dictate notes; check your citations. Every rule, checked against its official source.

    See them all →

    For law firms and tax advisers in Spain

    Built for law firms and tax advisers in Spain.

    AIM LEX checks every legal citation against its official source — the Spanish Official Gazette (BOE), EUR-Lex and administrative doctrine — before you ever see it. If a statute or a judgment does not exist, it does not reach you.

    Received an official letter? A fine, a letter from the tax office, a dismissal: we explain what it is, what deadline you have and what you can do. Free first diagnosis: we answer in English → Or read first how the most common ones work: official letters explained, with the law in front of you.

    What it does

    • Citation verification. Paste any brief and we tell you which statutes and judgments do not exist, or do not say what the text claims.
    • Procedural deadlines. Working days and regional public holidays, so you never miss by one day.
    • Case files and clients. Deadlines tied to their court and case number; each client with their own tax compliance calendar.
    • A verifiable seal. A QR on your document opens a public page proving what was checked and when — without showing your text.

    Why it is different

    • It is not a search engine with answers on top. It decides which tool to use, checks what it finds and reviews itself before delivering.
    • It says what it does not know. When coverage is insufficient it tells you, instead of writing something plausible.
    • Measured regularly, in public — including the cases that fail.
    • Spanish regional law included: the Catalan Civil Code and the Basque Civil Law Act, not only state legislation.

    If a citation marked green turns out to be false, we refund the month

    When we mark a citation as verified it is because we have the official text in front of us. If a citation marked green turns out not to exist, not to be in force, or if the legal figure we give on the strength of it —a deadline, an amount, a percentage— is not the one its official source states, we refund that month's subscription. Nothing to argue about: the verification seal is public and anyone can check what we claimed and when. See our refund policy.

    The industry charges per lawyer.
    We charge per firm.

    Every AI legal tool in Spain charges per seat: each lawyer you add is another full licence, whether they use it or not. We do not — and it is not a launch gimmick: our cost depends on how many research queries are run, not on how many people log in. We charge for what it costs us. See pricing.

    Software as a service. No installation. No minimum term — cancel anytime and take your data with you. Provided by Biomag S.L.U., Vitoria-Gasteiz, Spain. Contact · Terms · Privacy · Refunds

    About us

    Spanish technology since 1987. Your data, in Europe.

    AIM LEX is built by AIM, the software division of Biomag: a Spanish technology company founded in 1987, based in Vitoria-Gasteiz and present in more than twenty countries. Not an anonymous start-up: a European company with almost forty years of products on the market, accountable under European law.

    We built AIM LEX because AI has made it trivial to write law that sounds flawless and cites rules that do not exist, and Spanish courts already sanction it. The answer is not an AI that sounds better: it is one that checks every citation against the official source before showing it to you, and leaves you the receipt.

    European company, data in the European Union. Compliant with the General Data Protection Regulation and with the transparency obligations of the European Artificial Intelligence Act.

    Sovereignty over your data

    Hosted in the European UnionThe application, the database and your documents are stored in EU data centres, in the Netherlands.
    GDPR built inA data processing agreement, and export or deletion of your data from your account, whenever you want.
    European AI ActYou always know you are talking to an artificial intelligence, and what it generates is marked as such (Article 50).
    Personal data kept out of the modelBy default, names, ID numbers, accounts, emails and phone numbers travel as placeholders: the AI works on the case without seeing the people.
    Your data trains no oneWhat you ask and upload is used only to answer you. Never to train models.
    Encrypted in transit and at restEncrypted connections, queries and documents encrypted in the database, two-step verification and each organisation in its own space.

    Who is behind it

    Since 1987Almost forty years as a technology company, based in Spain and present in more than twenty countries
    Our own brands on the marketYears manufacturing and selling products
    Engineering in production, not a demoManagement systems, expert copilots, complete platforms
    Proof, not promisesPublic benchmark, a receipt for every verification, real figures on the website

    security · data processing agreement · privacy · aimadvisor.ai · write to us

    Start with your case. It is free.

    Tell it what you received and in a minute you know what to do. If you are a lawyer or adviser, check the citations in your next brief. No account; and when you choose a plan, no minimum term.

    Law firm or tax advisory? Ask for a demo. Pricing. Already have an account? Log in.