European Central Bank reference FX rates provider for molecule.dev (free, keyless, EUR pivot)

Rate limiter that supports a rolling window, either in-memory or backed by Redis

MCP server for European Central Bank data — exchange rates, interest rates, yield curves, inflation, money supply, and more via the ECB SDMX API

Pure Javascript implementation of Blowfish block cipher.

A scheduler based on requestAnimationFrame

A rate limiter component for Convex. Define and use application-layer rate limits. Type-safe, transactional, fair, safe, and configurable sharding to scale.

MCP server for official central-bank and tax-authority exchange rates — let AI tools (Claude Code, Cursor, Claude Desktop) fetch published rates from 60+ institutions (ECB, Fed, HMRC, BOJ, ...) via the AllRatesToday API.

A modular rate limiter for SvelteKit. Use in password resets, account registration, etc.

Distributed task scheduler and rate limiter

User replays for Sentry

React Native Rate is a cross platform solution to getting users to easily rate your app.

Simple in-memory rate-limit for Node.

Model Context Protocol (MCP) server for the Rate-API.com exchange-rate API: gives Claude and other AI assistants currency rates, conversion, historical data, time series and crypto prices.

Compute the internal rate of return of a sequences of transactions made at irregular periods.

[](https://www.npmjs.com/package/@upstash/ratelimit) [](https://github.com/upstash/ratelimit/actions/workf

javascript standard data structure library which benchmark against C++ STL

Highly configurable and extensible rate limiter library

create error-first callbacks from separate error and success handlers

Audited & minimal JS implementation of Salsa20, ChaCha and AES

Replay canvas integration