Brazil
Your Brazilian case files, read by artificial intelligence
Custodio reads the documents of your case and does the work that comes next: it tells you which ruling is new and where the matter stands, answers your questions citing the document each answer comes from, and leaves the draft started. It is fed by the CNJ case number: the case record, looked up daily in the courts that publish their lookup through e-SAJ, and the comunicações the DJEN publishes under that number.
The risk is not finding out late: it is citing an acórdão that does not exist
A language model asked about the law from memory invents, and it invents with a number, a year and a reporting judge. We measured ours in Brazilian legal Portuguese on 13 September 2026: asked with no text in front of it, it invented citations. With the case documents in front of it, across eighteen answers over delivered documents, it invented no article, no date and no filing, and in four of them it said the fact was not in the documents instead of filling it in.
That is why Custodio does not answer from memory. It works over your case documents and over what the court published, never over the open web, and every statement comes with the citation of the document it came from, which opens in one click and is logged. What is not in the case file, it does not say.
From the CNJ number to the draft, in four steps
You enter the number
The CNJ unified case number is national and written the same way across the country. You paste it however you wrote it down, with dots or without them, and Custodio normalizes it before looking it up.
It is looked up every day
The class, the subject, the forum and the court where the case sits today, the parties with their side, and every movimentação with its date and its type, in the courts whose e-SAJ lookup is open.
The artificial intelligence reads it
It extracts the facts of the ruling, says what changed and where the matter stands and shows next to it the document each statement came from.
And leaves the work started
The draft filing in Word to review and sign, the answer to your question with the citation behind it, and the deadline in your calendar before it slips.
What Custodio does in Brazil
Seven concrete things. The first five work on day one, over the documents you upload, with no court portal involved.
Questions in plain language over your case documents, answered with the citation of the document the answer comes from.
The facts of every ruling and every document you upload, each with its evidence and kept apart from the conclusions.
Draft filings in Word, written from the case file and its documents, for you to review, correct and sign.
Where the matter stands in one line: what was decided, what is missing and what is on you.
Running the practice: judicial and extrajudicial matters, parties, documents and calendar, with your firm's data kept apart from anyone else's.
A lookup of the case by its CNJ number: every day, the e-SAJ record with class, subject, forum, court, parties and the list of movimentações with each one's date and type; and the comunicações the DJEN publishes under that number, each with its text.
Data subject rights: an access, correction or deletion request arriving through the public channel is handled under the terms the LGPD, Lei nº 13.709/2018, sets, counted on the Brazilian calendar.
Which cases are watched, and which are not
We say it in full and up front, because it is what decides whether the product is useful to you today. In Brazil the case record has no single national door standing open: each court publishes its own lookup, and Custodio reads the courts that publish theirs through e-SAJ. Comunicações do have a national channel, the DJEN, and Custodio queries it with the numbers of the cases you follow.
The e-SAJ case lookup
That is where the first-instance case record comes from: class, subject, forum, court, amount in dispute, the parties with their lawyers and the table of movimentações with their dates.
Tribunal de Justiça de São Paulo
Measured with ten cases out of ten on 13 September 2026, with no account, no password and no prior registration. It is the country's largest court, and its e-SAJ lookup reaches what it handles through e-SAJ, not what it handles through Projudi.
Tribunal de Justiça do Amazonas and Tribunal de Justiça do Acre
Measured in the same 13 September 2026 sweep, which covered 33 courts — the 27 state courts of justice and the 6 regional federal courts —: together with São Paulo, they are the three whose e-SAJ lookup is open and that Custodio reads with no account and no password. A case from any other court can still be added, but its number is not checked.
What you upload
Everything the artificial intelligence does over your case documents works on day one, in any court in the country, whether or not there is a public lookup.
DJEN comunicações
The Diário de Justiça Eletrônico Nacional, queried by the CNJ number of the cases you follow: each comunicação it returns comes in as an entry on the case, with its text. The lookup runs daily and is spread across your cases, each time covering the last seven days: not every case is checked on the same day.
And what is not: DataJud, the CNJ's national case database, whose terms of use do not allow commercial use, so Custodio does not query it. On the DJEN, Custodio searches only by the number of the cases you follow: it does not search by OAB number or by party name, and a comunicação published under another number is one it does not see.
Custodio not recording a movimentação or a comunicação is no proof that there was none: if the court did not publish it, we do not see it either. The comunicação that counts is the one the DJEN publishes; Custodio tells you what it finds, but it does not replace your own check.
You pay in reais, with no conversion
Plans are charged in reais, at the figure the price list publishes: there is no conversion in between. The charge is made by a merchant abroad, so you need a card with the international function enabled: a Brazilian card without it will not work.
There is something specific to Brazil worth knowing before you subscribe: the charge is in reais, but it is made by a merchant abroad, and if your card issuer treats the payment as an international purchase it may apply the charges of one, the IOF included, whose rate is under litigation (between 3.5% and 6.38%). From 1 January 2027 one more line may be added: we are not registered in the Brazilian IBS and CBS cadastre, and without that registration the institution processing your payment may withhold those two taxes, on top of the price (LC 214/2025, art. 23 parágrafo único). If instead your firm formalizes the import of the service, it also bears the IRRF, the CIDE, the PIS and the COFINS on imports and your municipality's ISS: between 15.9% and 52% more, depending on how the service is classified and which rate your municipality applies. It is not a Custodio charge and it is not something we file for you; check it with your accountant before you subscribe.
And one dated notice that is not up to you: from 2027, if the foreign supplier is not registered in the IBS and CBS cadastre, the institution handling the currency exchange withholds those two taxes on the remittance, on top of the list price. That is a decision of ours which is open and closes in December 2026; this page will say whatever gets decided.
See plans and pricesWhat gets asked before opening an account
What exactly does the artificial intelligence do?
It extracts the facts of every ruling and every document, says where the matter stands and what changed with the latest docket entry, and writes draft filings in Word. It also answers questions in plain language over your case documents. Nothing is filed on its own: you review it, correct it and sign it.
What stops it from inventing an acórdão?
That it does not answer from memory. It works over your documents and over what the court published, never over the open web, and every answer carries the document it came from, which opens in one click. If the fact is not in the case file, the answer says so instead of filling it in. That is the difference we measured in Brazilian legal Portuguese on 13 September 2026.
Does it watch the intimações of the DJEN?
Yes, by the CNJ number of the cases you follow. Custodio queries the DJEN in a daily pass that is spread across your cases and covers the last seven days each time; each comunicação it finds comes in as an entry on the case, with its text. It does not search by OAB number or by party name. The intimação that counts is the official one on the DJEN: Custodio tells you what it finds, it does not replace your own check.
How is the case number written?
With the CNJ unified number, which is national and does not change if the case moves up an instance: seven sequential digits, two check digits, the year, the branch, the court and the unit of origin. Custodio takes it with dots and without them. The two check digits matter: with one of them changed, the lookup answers exactly as it does for a case that does not exist.
Does the price include Brazilian taxes?
No, and Custodio charges none of them. The charge is in reais; since it is made by a merchant abroad, your card issuer may apply the charges of an international purchase, and which ones depends on how it settles the transaction. If your firm formalizes the import of the service, the IRRF, the CIDE, the PIS and the COFINS on imports and your municipality's ISS are added. What it ends up costing depends on how you are taxed: that is your accountant's call.
Try it on a case of your own
Open a free account, upload the documents of one matter and see what it answers.