Generate a valid CUSIP
Zero-dependency CUSIP validator. Validates 9-character CUSIP identifiers using the Modulus 10 Double Add Double check digit algorithm.
CUSIP and ISIN security identifier validator - validate, parse, and batch-check financial instrument codes
Validate and parse CUSIP identifiers — issuer, issue, check digit, CINS, Treasury detection. Zero dependencies.
CUSIP-style luhn mod N
The best validation library for JavaScript
This folder contains Typescript interfaces, in ContextTypes.ts generated from the context JSONSchema (https://json-schema.org/) files via quicktype (https://quicktype.io/).
Generate fake, valid numbers
Command-line interface for the Finok financial data API. Query stock quotes, financial statements, market activity, and more from your terminal.
Unofficial TypeScript SDK for OpenFIGI API - Map financial identifiers to FIGIs (community-maintained)
Symbology client library for JavaScript
4-layer PII scanning pipeline for LLM-bound content (regex + NER + financial recognizers + allow-list)
MCP server for OpenFIGI API - Map financial identifiers to FIGIs via Model Context Protocol
Company Logo client library for JavaScript
Shared TypeScript types and domain schemas for the goldencheck data-quality toolkit
Advanced AI-powered MCP server for ORBT Financial Intelligence API with Gemini-powered natural language credit analysis, multi-company comparisons, Bitcoin scenario modeling, and comprehensive sector risk assessment
Interval-based micro batching library for TypeScript/JavaScript
Account / security / event-stream / daily-snapshot primitives for advisor portfolio data — immutable HoldingEvent log + materialized HoldingSnapshot, AccountBalance with inflow/outflow decomposition, custodian connection mirrors, scoped advisor access
Convert various CSV formats for import to Wealthfolio
This folder contains Typescript interfaces, in ContextTypes.ts generated from the context JSONSchema (https://json-schema.org/) files via quicktype (https://quicktype.io/).
Model Context Protocol server for New York Fed Markets Data APIs
TypeScript SDK for the isvalid.dev validation API
Interface to Unibit API
Parse an ISIN into country code, NSIN, and check digit. Zero dependencies. Pure functions.
Support for creating and validating CUSIPs
Securities identifier validation in pure Rust — ISIN, CUSIP, SEDOL, LEI, BIC, MIC, FIGI, CFI and national numbers. Check-digit algorithms, parsing, and conversion. Zero dependencies, no_std, no alloc.
A no_std library for validating various financial and contact identifiers.
A Rust implementation of the Interactive Brokers TWS API, providing a reliable and user friendly interface for TWS and IB Gateway. Designed with a focus on simplicity and performance.
Claude Code hook CLI — PII guard, leak detection, event logging
Support for creating and validating CIKs
Bloomberg YAS (Yield Analysis System) replication for the Convex fixed income library
Production-grade Rust client for Financial Modeling Prep API with intelligent caching, rate limiting, and comprehensive endpoint coverage
Type-safe parser for Interactive Brokers (IBKR) FLEX XML statements: trades, positions, cash flows, corporate actions, and P&L.
Support for creating and validating ISINs
Support for creating and validating Legal Entity Identifiers (LEIs)
Async Rust client for TradingView screener queries, search, calendars, quote snapshots, and OHLCV history.
CUSIP-style luhn mod N
A gem to check ISIN/cusip/sedol validity
Validate ISIN, CUSIP and SEDOL codes
Validate, normalize, parse, and convert securities identifiers. Auto-detect identifier type from any string. Calculate and restore check digits. Supports ISIN, CUSIP, CEI, SEDOL, FIGI, LEI, IBAN, CIK, OCC, WKN, Valoren, CFI, and FISN.
Maps financial identifiers (ISIN, CUSIP, ticker, etc.) to FIGIs via the OpenFIGI V3 API. Supports bulk mapping, keyword search, and filtering.
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