#golang-library

Full-featured test framework for Go! Assertions, fuzzing, input testing, output capturing, and much more! 🍕

MongoDB queries in Go you can actually read. Composable builders for filters, updates, and pipelines, with the docs in your godoc.

Golang library for working with Windows primitives

Convenience package linking sztest and szlog packages for cleaner test code.

The fully compliant, embeddable high-performance Go MQTT v5 server for IoT, smarthome, and pubsub

A complete, production-grade, dependency-free Go client for the Banking Circle Connect API: cross-border payments, accounts, virtual accounts (VIBANs), FX (trading, RFQ, held rates, and live WebSocket streaming), reporting, case management (RFI/recall), direct debit collections, ISO20022 message transport, and webhooks.

Production-grade Go client for the [Ramp Developer API v1](https://docs.ramp.com/developer-api/v1/introduction).

A lightweight, type-safe reactive stream library for Go 1.27+. Built on generics — no reflection, no external dependencies.

Go configurator structures library

Persistent data structures for go

A production-grade, dependency-free Go client for the [Moneyhub Open Finance API](https://docs.moneyhubenterprise.com/) - Open Banking account aggregation (AIS), payment initiation (PIS), data categorisation/enrichment, affordability, and webhooks.

A complete, production-grade Go client for the [Monzo API](https://docs.monzo.com), structured with domain-driven design layering and built entirely on the standard library.

A production-grade Go client for the full Tipalti API surface: the modern OAuth2 REST API, the legacy HMAC-signed SOAP Payee/Payer API, and the Procurement REST API.

An unofficial, complete Go client for the [Treasury Prime](https://www.treasuryprime.com) banking API (the Ledger product): bank accounts, ACH, wires, book transfers, FedNow, debit cards, account opening / KYC, check deposit (RDC), check issuing, Green Dot cash loads, webhooks, and sandbox simulations.

A Go client for the [Triple](https://jointriple.com) transaction data enrichment API: turn raw bank/card transaction strings into clean merchant names, logos, categories, locations, contact details, subscription detection, CO₂ estimates, fraud signals, and payment processor identification.

A production-grade Go client for Worldpay's payment platforms.

A lightweight, high-performance Clerk authentication and RBAC helper for Go & Echo. Features built-in Ristretto caching and easy metadata extraction.

A minimal set of monadic types for go.

A complete, production-grade Go client for the Starling Bank Public API (https://developer.starlingbank.com/docs),

Simple TLS PKI Library with embedded database

CipherPayload middleware for Fiber that use AES Algorithm for encrypt and decrypt payload in request and response body.

zlogtime is a logging library, which measure the elapsed time of services on-demand.

custom golang logger

Production-grade Go client for the [Lithic API](https://docs.lithic.com) — card issuing, fintech infrastructure, and embedded finance.

Skip the request parsing and response serialization boilerplate in Go using struct tags.