mcp-latam-validate
Resolves Mercado Pago as the issuing bank for Mexican CLABE account numbers, enabling validation and bank identification for accounts at that institution.
Resolves Nubank from Brazilian bank codes (e.g. COMPE 260) to identify the institution associated with transfers and payments.
This server has a remotely hosted endpoint. Open its connector listing for connection details, authentication requirements, and setup instructions:
mcp-latam-validate
LatAm Validate MCP — validate Latin-American banking and tax identifiers.
Part of Pipeworx — an MCP gateway connecting AI agents to 1856+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.
Tools
Tool | Description |
| Validate a Mexican CLABE (Clave Bancaria Estandarizada, the 18-digit interbank account number used for SPEI transfers). Checks the control-digit checksum and decodes the bank code, plaza (branch city) code, and account number. Resolves the bank name for major Mexican banks (BBVA, Banorte, Santander, Banamex, Banco Azteca, STP, Nu, Mercado Pago, ...). Pure computation — accepts spaces or dashes in the input. |
| Validate a Brazilian CNPJ (Cadastro Nacional da Pessoa Jurídica, the 14-character company tax ID) and look up the company registration: legal name (razão social), trade name, CNAE activity, address, registration status (situação cadastral), and partners (QSA). Checksum supports both the classic numeric format and the alphanumeric CNPJ introduced in 2026. Punctuation (12.345.678/0001-95) is accepted. Set skip_lookup to validate the checksum only. |
| Validate a Brazilian CPF (Cadastro de Pessoas Físicas, the 11-digit personal tax ID) checksum. Pure computation, no lookup — returns whether the two check digits are correct and the formatted form. Punctuation (123.456.789-09) is accepted. |
| Look up a Brazilian CEP (postal code) and return the address: street, neighborhood, city, and state, with coordinates when available. Example: CEP 01310-100 → Avenida Paulista, Bela Vista, São Paulo, SP. |
| List Brazilian banks (COMPE code, ISPB, and name) from the central-bank registry, optionally filtered by name or code. Use to resolve a bank code from a boleto or PIX/TED transfer to the institution name, e.g. code 1 → Banco do Brasil, 260 → Nubank. |
Related MCP server: mcp-latam-business
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"latam-validate": {
"url": "https://gateway.pipeworx.io/latam-validate/mcp"
}
}
}What this endpoint actually serves
tools/list at https://gateway.pipeworx.io/latam-validate/mcp returns the tools in the table
above plus the shared Pipeworx meta-tools — ask_pipeworx,
discover_tools, search_within, remember/recall and the rest of the
gateway-wide set. So the tool count you see is larger than this table: a
single-pack endpoint currently lists roughly 30 shared tools alongside the
pack's own. The connection's initialize response states its exact scope, and
is the authoritative answer for a given day.
This is deliberate, not multiplexing by accident. The meta-tools are what let a
scoped connection answer a question this pack does not cover — via
ask_pipeworx, which routes across the whole catalog — without you adding a
second MCP server. There is currently no way to mount a pack endpoint without
them; if the extra schemas cost you more context than the routing is worth,
connect to the full gateway once rather than to several pack endpoints.
Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}Both URLs reach the same gateway and the same 1856+ data sources. The
only difference is which pack's tools are listed directly; ask_pipeworx
reaches all of them from either one.
No MCP client? Call it over HTTP
curl -X POST https://gateway.pipeworx.io/v1/tools/validate_clabe \
-H 'Content-Type: application/json' \
-d '{"clabe":"002010077777777771"}'No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/validate_clabe. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.
Run it from npm
@pipeworx/mcp-latam-validate is a local stdio bridge to the Pipeworx gateway: your MCP client
starts it with npx, and it forwards every call to the same
https://gateway.pipeworx.io/latam-validate/mcp endpoint shown above. It needs network access;
there is no offline mode.
{
"mcpServers": {
"latam-validate": {
"command": "npx",
"args": ["-y", "@pipeworx/mcp-latam-validate"]
}
}
}Without a key it calls anonymously, capped at 50 calls a day. A free account
raises that to 200 a day: get a key at https://pipeworx.io/signup and add
"env": { "PIPEWORX_API_KEY": "<your key>" } to the server entry.
The key is sent as a Bearer token, the same way a hosted connection sends it,
so calls are metered and billed exactly as they are there.
It lists only this pack's tools by default. Set PIPEWORX_META_TOOLS=1 to
also list ask_pipeworx and the other gateway-wide tools.
Behind an HTTPS proxy: Node's built-in fetch does not read HTTPS_PROXY by
default. Newer Node releases honour it when NODE_USE_ENV_PROXY=1 is set; check
your Node version's documentation.
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:
ask_pipeworx({ question: "your question about Latam Validate data" })The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
This server cannot be deployed
Maintenance
Related MCP Connectors
15 deterministic validation tools for AI agents: tax IDs (15 countries), VAT, IBAN, LEI, HS codes.
Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402).
Verified LATAM data for AI agents: sanctions, entity, rates, KYB. Pay via x402.
Checksum validation for AI agents: IBAN, ISBN, EAN/GTIN, UUID, ULID. Deterministic, no auth.
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