International Securities Identification Number (ISIN) Validator

Generate a valid ISIN

Graphical symbols for identification of specific securities labeled by the 12-digit code, ISIN.

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Securities-identifier validation MCP (ISIN / CUSIP).

Graphical symbols for identification of specific securities labeled by the 12-digit code, ISIN.

ISIN to uint256 conversion library

CUSIP and ISIN security identifier validator - validate, parse, and batch-check financial instrument codes

International Securities Identification Number validator

Securities identifier math in one package — validate, parse, and compute check digits for CUSIP, ISIN, SEDOL, FIGI, and LEI, plus CUSIP→ISIN and SEDOL→ISIN conversion. Zero dependencies.

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Official client for FundFacts API: structured fund & ETF data from any ISIN (key facts, TER, risk, holdings, exposure, performance), plus batch, search, portfolio look-through and overlap.

Parse an ISIN into country code, NSIN, and check digit. Zero dependencies. Pure functions.

MCP server for entityresolver.xyz — resolve ambiguous names ("Apple", "ETH", "Siemens") to verified canonical IDs (SEC CIK, GLEIF LEI, ISIN, Wikidata QID, CoinGecko slug), US and non-US. Free demo tool + x402-paid production tool (USDC on Base, no API key

The best validation library for JavaScript

MCP server for the Mamba Labs Public Company Earnings Dates and Reporting Window Finder actor on Apify. A domain, ticker, ISIN, LEI or CIK in, and out comes fiscal year end, reporting cadence, the next reporting date, days to event and the open and close

Parse an ISIN into country code, NSIN, and check digit. Zero dependencies. Pure functions.

Offline, zero-dependency checksum & format validators: IBAN, GTIN/EAN/UPC, Luhn, ISIN, CUSIP, SEDOL, LEI, VIN, ISO 6346 container, ABA routing number, BIC. No network calls.

Legal entity information and reference data including Legal Entity Identifier (LEI), LEI-reference data (Who is who?), LEI-relationship data (Who owns whom?), LEI-mapping data (LEI-BIC, LEI-MIC, LEI-ISIN) and LEI-meta data.

Extract deep ETF data from justETF: ISIN, TER, live quote, returns (YTD/1M/3M/6M/1Y/3Y/5Y/MAX + yearly), volatility, max drawdown, top-10 holdings, country and sector weights. Search by query or pass exact ISINs. No login required. Pay per ETF record.