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Pix QR Builder
Build, validate and explain Pix static and dynamic QR codes (copia e cola) from the Central Bank manuals, with the CRC16 checked and a read-back for the owner to confirm
Unify Dynamics LLC
Tools8read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
Make me a Pix code for R$ 150.00 for order PED0042 to my CNPJ key, receiver Padaria Bom Pao in Sao Paulo, and let me confirm it
Tools called
build_static_pixcheck_pix_key_formatA customer sent me a Pix copia e cola: is it valid and who does it pay?
Tools called
validate_pix_payloadexplain_pix_payloadMy company name has accents and is longer than the Pix limit: what goes into the code?
Tools called
normalize_pix_textMy bank gave me a Pix payment URL: build the QR payload for it
Tools called
build_dynamic_pix_refWhat are the field limits of a Pix code and which CRC does it use?
Tools called
pix_field_rulescompute_pix_crcAbout
Pix QR Builder turns the public Pix BR Code rules into tools an agent can call. build_static_pix writes a static Pix payload from a Pix key, receiver name, city, optional amount and reference (txid), checks it again with a strict parser and returns a read-back (who is paid, where, how much) that the owner must confirm before the code is used. build_dynamic_pix_ref writes the payload of a dynamic code from the payment-location URL that the owner's payment provider issued. validate_pix_payload checks a pasted copia-e-cola string (structure, field lengths, fixed values, CRC16) and lists every error and warning; explain_pix_payload reads it field by field. compute_pix_crc, normalize_pix_text (accents and length limits, with a report of what changed), check_pix_key_format (format and check digits only, never a lookup) and pix_field_rules (every limit with its source) complete the set. Nothing is sent, paid or stored, and no Pix key is ever looked up. A wrong payload can send money to the wrong account, so every builder answer carries the read-back and says that the owner must confirm the receiver, city and amount. Built on the railqr library; the rules come from the Banco Central do Brasil manuals (BR Code v2.0.1 and Manual de Padroes para Iniciacao do Pix v2.10.0). Independent tool: not affiliated with or endorsed by Banco Central do Brasil.
Sources: Reference data from official sources (bcb.gov.br); every answer states its source, date and validity period.
Privacy
The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.
Data not collectedNo account, no profile, no stored prompts or results.
What it can do
8 tools, grouped by job. Every one is read-only or compute-only.
- Validate pix payloadStrictly check a Pix copia-e-cola payload: structure, lengths, fixed values, key format and CRC16; lists errors and warnings and a read-back of…
- Check pix key formatFormat and check-digit check of a Pix key (CPF, CNPJ including the alphanumeric format, +55 phone, e-mail, random key); never looks the key up.
- Compute pix crcCRC-16/CCITT-FALSE (polynomial 0x1021, initial value 0xFFFF) of a Pix payload body ending in 6304, or of any text in raw mode.
- Build static pixBuild a static Pix BR Code (copia e cola) from a Pix key, receiver name, city, optional amount, txid and note, re-check it with the strict parser…
- Build dynamic pix refBuild the dynamic Pix BR Code from the payment-location URL issued by the owner's payment provider (no protocol prefix, at most 77 characters),…
- Explain pix payloadRead a Pix payload field by field in plain language (kind, key type, receiver, amount, reference, recurrence) alongside its validity.
- Normalize pix textPrepare a receiver name and city for a Pix code: remove accents, collapse spaces, optional upper case, cut to 25 and 15 characters, and report…
- Pix field rulesThe Pix BR Code field rules (lengths, allowed characters, fixed values, CRC) each with its source, verification level and manual section.
Information
PublisherUnify Dynamics LLC
CategoryMoney & business · Brazil
LanguagesEnglish
Built forBrazil
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://br-pix-qr.connectorbay.com/mcpREST APIopenapi.json
CountryBrazil
FunctionGetting paid
LayerDeep connectors
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