Pet Microchips in Brazil: SinPatinhas and Tracing

This guide explains how pet microchip registration works in Brazil, where to check a Brazilian microchip, and what to do if the number is not found.

In this guide:

Brazilian microchip numbers
Found pet with a Brazilian microchip
Microchip not found
Brazilian microchip databases
How ChipTrace searches Brazil
Registering a microchip
Checking and updating registration
Buying, adopting and moving
Missing pets, imported pets and travel
Useful links

If you already have a microchip number, start with ChipTrace. It can help you check possible databases, country clues and manufacturer routes before you contact registries manually.

What do Brazilian microchip numbers look like?

Most modern pet microchips follow the ISO standard and contain 15 digits.

The official ISO numeric country code for Brazil is 076.

A Brazilian country-coded microchip may therefore begin with 076.

However, not every pet living in Brazil has a 076 chip. Many animals have manufacturer-coded microchips or chip numbers from other countries.

Manufacturer-coded microchips start with the digit 9. These numbers may appear in several countries, so they do not prove where the pet was chipped or registered.

Some animals received the microchip in another country before moving to Brazil.

This is common with:

Imported dogs and cats
Pets adopted through foreign rescues
Animals that moved to Brazil with their families
Older pets with manufacturer-coded chips
Animals with previous registrations abroad

A readable foreign or manufacturer-coded chip can still identify the animal in Brazil.

Also, the same number can be added to a Brazilian record when the system accepts it.

In short, the first digits can give a clue about origin. They do not prove where the animal lives or which database holds the registration.

Example formats commonly found in Brazil

Many different microchip numbers may appear in Brazil. These examples show a few possible formats, but many other variations exist.

076123456789012 — Brazilian country-coded microchip
981123456789012 — manufacturer-coded microchip
945123456789012 — manufacturer-coded microchip
724123456789012 — foreign country-coded microchip

Use the prefix as a clue only, because a manufacturer-coded prefix can appear in more than one country.

Always check the complete number.

Read our guide to pet microchip numbers for more detailed information and practical steps.

What should you do if you find a pet with a Brazilian microchip number?

Follow these quick tracing steps to help reunite the animal with its owner.

Ask a veterinarian, shelter, rescue or animal service to scan the animal and confirm the full microchip number.
Use ChipTrace to search PetLink Brasil automatically through Petmaxx and check possible country or manufacturer clues.
Open SinPatinhas and complete a separate manual search.
Open the SIRAA microchip search and complete a separate manual search.
Ask about any municipal or state registration.
Check databases in countries where the animal may have lived.
Contact any veterinarian, shelter, rescue, breeder or previous organisation that may be connected to the animal.

Who can contact the owner?

ChipTrace searches PetLink Brasil through Petmaxx.

At the moment, ChipTrace does not search SinPatinhas or SIRAA automatically.

Instead, ChipTrace provides direct buttons or links to open both services.

The user then completes each search manually.

A public result may confirm that the microchip is registered.

However, it should not show the owner’s full private details.

The database, veterinarian, shelter, rescue or public service may contact the registered owner instead.

A negative result from SinPatinhas or SIRAA does not necessarily mean that the microchip is not registered elsewhere.

If nobody can reach the owner, you can post on local social media and leave notices at veterinary clinics, shelters, rescues, municipal animal services and nearby shops.

Do not publish the complete microchip number online. Share only part of it so ownership claims can be checked safely.

Remember: some owned cats in Brazil are allowed to roam near their homes. Do not assume that every outdoor cat is lost.

Before taking action, look for signs that the animal is injured, frightened, displaced, trapped, very young, or unfamiliar with the area.

Read Found a Microchipped Pet? What to Do Next for practical advice and template messages you can send to local shelters and vets.

What if the microchip number is not found in any database?

A missing database result is not always the end of the trace.

Start by asking a veterinarian, shelter, rescue or animal service to scan the animal again and confirm every digit. One wrong digit can return no result.

Why the microchip may not appear

Possible causes and next steps:

The chip was implanted, but nobody registered it correctly. Ask the veterinarian, breeder, shelter or rescue to check their records.
Someone entered the number incorrectly. Re-scan the animal and search again with the verified number.
The animal may be registered in a separate Brazilian system. Search PetLink Brasil through ChipTrace, then search SinPatinhas and SIRAA manually.
A municipal, state, clinic, shelter or rescue record may exist. Ask local organisations to check their records.
The animal may still be registered in another country. Use ChipTrace for country or manufacturer clues and open the relevant manual route.
The chip is manufacturer-coded. Use the manufacturer or distributor route when no registry result appears.

Extra tracing routes to try

Use ChipTrace again after confirming the number. It searches PetLink Brasil through Petmaxx and may also suggest a likely country, manufacturer or distributor.
Open SinPatinhas and complete a manual search.
Open SIRAA and complete a manual search.
Check databases in countries where the animal previously lived.
Contact the microchip manufacturer or distributor. They may identify the distributor who supplied the chip and the veterinarian, breeder, shelter or rescue that received it.

Search SinPatinhas

Search SIRAA

If online searches give no result

ChipTrace cannot search SinPatinhas or SIRAA automatically yet.

Therefore, negative results from SinPatinhas and SIRAA do not necessarily mean that the chip is not registered elsewhere.

The chip may have been implanted but never registered.

The record may exist only with a veterinarian, shelter, rescue, municipality or older database.

The animal may also remain registered in another country.

ChipTrace may show possible country or manufacturer information. However, this is only a tracing clue, not a registration result.

Manufacturers and distributors normally do not give out the owner’s private details. Instead, they may identify the distributor that supplied the chip, the veterinarian or organisation that received it, or pass a matched enquiry to the next organisation.

Finding the owner is not guaranteed, but these extra steps often help. If you still cannot trace the owner after checking every route, contact a local shelter, rescue, municipal animal service, veterinarian or public service for advice.

Read our guide to why a microchip may not appear in any database.

Check a Microchip

Which microchip databases are used in Brazil?

Brazil uses a national government register and several private or local databases.

A registration may be held by:

PetLink Brasil
SinPatinhas
SIRAA
A private microchip company
A veterinary clinic
A shelter or rescue
A municipal or state database
A database in another country

An animal may appear in more than one system.

However, updating one registration does not normally update the others.

What is PetLink Brasil?

PetLink Brasil is a private Brazilian microchip registration and recovery service.

Owners can register a microchip and manage the animal’s details online.

PetLink Brasil also accepts some microchips supplied by other companies.

A record may include:

The complete microchip number
Information about the animal
The registered owner’s contact details
An emergency contact
Missing-pet information

Keep the owner’s telephone number and email address current.

Also, check the registration terms before creating or transferring a record.

What is SinPatinhas?

SinPatinhas is Brazil’s national register for dogs and cats.

Its full name is Sistema do Cadastro Nacional de Animais Domésticos.

It is a free federal government service.

Owners can create a record using a Gov.br account.

Veterinarians, animal welfare organisations and public authorities can also use the system.

A SinPatinhas record may include:

Information about the animal
The registered owner’s details
The microchip number
Vaccination information
Sterilisation information
Health information
A change of owner

After registration, the owner can download a digital Animal RG.

This identification card includes a QR code.

The QR code can be placed on the animal’s collar.

A finder can scan it and use the approved recovery information.

The QR code is useful, but it does not replace an implanted microchip.

Can the public search SinPatinhas?

Yes. The SinPatinhas homepage provides a public microchip-number search.

A finder can enter the complete number.

The search checks whether the chip appears in the national system.

The owner’s full private information should not be displayed.

Only contact information approved by the owner should be available for recovery.

What is SIRAA?

SIRAA is an animal-identification database used in Brazil and other parts of Latin America.

Its full name is Sistema de Identificação e Registro de Animais da América Latina.

The database includes microchipped pets and horses.

Some veterinarians, municipalities and microchip suppliers use SIRAA.

SIRAA provides a public microchip-number search.

A SIRAA registration is separate from SinPatinhas and PetLink Brasil.

Therefore, updating one system does not update the others.

How does ChipTrace search Brazil?

ChipTrace searches PetLink Brasil automatically through Petmaxx.

PetLink Brasil should not be searched again as a separate manual route after Petmaxx has checked it.

At the moment, ChipTrace does not search SinPatinhas or SIRAA automatically.

Instead, ChipTrace provides direct buttons or links to open both websites.

The user then completes those searches manually.

ChipTrace also checks other available international databases.

It may identify possible country or manufacturer information when no registration is found.

What can ChipTrace show?

ChipTrace may show possible country or manufacturer information.

However, a manufacturer match is not a registration result. It does not prove that the animal came from Brazil.

ChipTrace shows which automatic databases were checked. It also shows which manual Brazilian or international routes are still available.

ChipTrace does not display private owner information. A database, veterinarian, registry, shelter, rescue or authorised public service must contact the owner.

Read how ChipTrace works for more information about automatic checks and manual searches.

Are microchips required in Brazil?

Brazil does not have one general federal rule requiring every privately owned dog and cat to have a microchip.

Registration in SinPatinhas is also voluntary.

However, state and municipal rules may be different.

Some local programmes may require identification before an animal can use a public service.

A microchip may also be needed for:

International travel
Moving permanently to another country
Adoption through some shelters or rescues
Municipal identification programmes
Some breeder or animal-organisation records

Even when it is not required, microchipping and registration are strongly recommended.

A microchip gives the animal permanent identification.

However, it only helps when the number links to current owner details.

Does a pet need a microchip to join SinPatinhas?

No. A dog or cat can be registered in SinPatinhas without a microchip.

The animal receives a national record and a digital Animal RG.

If the animal is chipped later, the number can be added to the record.

A microchip gives stronger permanent identification than a collar or QR tag alone.

A collar tag can be lost or removed.

Are cats required to be microchipped?

There is no general federal rule requiring every privately owned cat in Brazil to have a microchip.

However, local rules may be different.

Microchipping and registration are still strongly recommended.

An indoor cat can also escape.

A readable microchip may be required for international travel.

How to register a pet microchip in Brazil

A veterinarian normally implants the microchip.

After that, the number must be linked to the animal and owner in a database.

To register a microchipped pet:

Confirm the complete microchip number.
Check whether the number is already registered.
Ask which database is linked to the chip.
Create or claim the animal’s record.
Add your current telephone number and email address.
Add an emergency contact when possible.
Create or check the SinPatinhas record.
Ask the veterinarian to add the microchip procedure when required.
Check every digit carefully.
Keep the registration confirmations.

Documents useful for registration

Useful documents may include:

The microchip certificate
The vaccination record
Veterinary records
An adoption contract
A purchase agreement
A foreign registration document
Any municipal or state registration

Does the veterinarian register the chip automatically?

Not always.

The veterinarian may add the implantation procedure to SinPatinhas.

The clinic may also use PetLink Brasil, SIRAA or another database.

In some cases, the owner must complete part of the registration.

Ask the veterinarian:

Which database will hold the record?
Has the microchip been added to SinPatinhas?
Is there another active registration?
Is the complete microchip number correct?
Are my contact details included?
How can I update the record later?

Do not assume that implantation means registration is complete.

A chip without a current record may not lead a finder back to you.

How to register a pet in SinPatinhas

To create a SinPatinhas record:

Open the SinPatinhas website.
Sign in using your Gov.br account.
Choose the owner profile.
Add information about the animal.
Upload a clear photograph.
Check your telephone number and address.
Complete the registration.
Download the digital Animal RG.

The animal does not need a microchip before the main record is created.

Registration is voluntary and free.

Some professional procedures can only be entered or confirmed by a veterinarian.

These may include microchip implantation, vaccination and sterilisation.

Can I add a global microchip registration?

Yes. A global registration can provide another route back to the owner.

Animal-ID allows owners to create an additional record using an existing microchip number.

This can help when:

The pet travels outside Brazil
The animal is adopted abroad
A finder uses an international search service
The Brazilian registration is difficult to find
The animal has a foreign or manufacturer-coded chip

Important: a global registration is only a safety net.

It does not replace SinPatinhas, PetLink Brasil or a required local registration.

Updating Animal-ID does not update the Brazilian records.

Keep the same contact details in every active database.

How to check your pet’s microchip registration

This section is for owners who already know their pet’s microchip number.

If you do not know the microchip number, ask a veterinarian, shelter or rescue to scan the animal first.

To check the registration:

Use ChipTrace to search PetLink Brasil automatically through Petmaxx.
Sign in to the PetLink Brasil owner account when PetLink holds the record.
Search SinPatinhas manually.
Search SIRAA manually.
Check any municipal or state system.
Compare the number with the microchip certificate and veterinary records.
Check databases in countries where the pet previously lived.

When checking the record, confirm the registered owner’s name, address, telephone number and email address.

Also check that the animal’s status is correct.

It should not still be marked as missing, found, transferred or dead.

A public search may show only limited recovery information.

It should not show the owner’s full private details.

How to update a Brazilian microchip registration

Update every active registration when important information changes.

Update the records when:

You move home
Your telephone number changes
Your email address changes
The animal moves to a new owner
The animal goes missing
The animal is found again
The animal moves abroad
The animal dies

SinPatinhas, PetLink Brasil, SIRAA and municipal databases do not normally update each other.

Therefore, change each active record separately.

Some veterinary information in SinPatinhas may need a veterinarian update.

Updating veterinary documents alone is not enough.

Finally, update any foreign or international registration separately.

How to transfer a Brazilian microchip registration

The owner details should change when a pet is sold, adopted or given away.

The transfer process depends on the database holding the record.

The previous owner may need to approve or start the change.

Useful documents may include:

An adoption contract
A purchase agreement
A signed transfer document
Veterinary records
The microchip certificate
Written confirmation from the previous owner

Update SinPatinhas and each private registration separately.

After the transfer, check the new owner’s name and contact details.

What if the pet is still registered to someone else?

Contact the previous owner, shelter, rescue or breeder first.

Ask them to help transfer the record.

If they cannot help, contact the database directly.

Explain how the animal came into your care.

Then, provide any documents the database requests.

A database record shows who is registered as the animal’s contact. However, it may not settle a legal disagreement about ownership.

Buying or adopting a pet in Brazil

Ask for the complete microchip number before taking the animal home.

When possible, ask a veterinarian, shelter or rescue to check the microchip.

Make sure the number matches every document.

Buying or adopting a dog or cat

Also ask for:

The name of every database holding the record
The SinPatinhas Animal RG, when available
Proof of the microchip registration
Vaccination and veterinary records
An adoption contract or purchase agreement
Any local registration documents
Information about any foreign registration

The previous owner, shelter, rescue or breeder should help update every active record.

What about a pet adopted from a Brazilian rescue?

Ask the rescue which records already exist.

Also ask:

Whether the animal has been checked for a microchip
Who is named in each database
Whether the pet is registered in SinPatinhas
Whether PetLink Brasil or SIRAA holds a record
Who will complete each transfer
Who will register the pet in its new country
Whether the rabies and travel documents are complete

A pet adopted abroad may need active registrations in Brazil and its destination country.

Keep the Brazilian records active until the new registration has been confirmed.

What should you do if your pet goes missing?

Act quickly.

First, report the animal as missing in every database that offers this option.

Then, check the SinPatinhas record and every private registration.

Also, make sure your telephone number and email address are correct.

Local alerts and contacts

You should:

Contact local veterinarians.
Contact shelters and rescue groups.
Contact the municipal animal service.
Check local lost-and-found pet pages.
Share a clear photograph and the area where the animal disappeared.

Do not publish the complete microchip number online.

Share only part of the number publicly. Keep the full number for veterinarians, shelters, rescues, municipal services, databases and trusted organisations helping with the search.

After the animal returns, close every missing-pet report.