Free, open-source tools for the parts of modern software that are moving fast: AI agents, retrieval (RAG), web scraping, and the developer workflow around them. Every tool here is meant to run, not just to read. Tested, documented, and free to use forever.
Open-source agents for the payment workflows that usually take a lot of manual effort. Each has a deterministic, tested core and a Claude agent for the judgment calls, and each is gateway-agnostic.
- recoup recover failed payments and failed subscription renewals.
- reconcile match settlements and payouts against your ledger and explain the gaps.
- dispute-agent triage chargebacks, find the missing evidence, and draft the response.
- cartback recover abandoned carts with a staged plan and a drafted nudge.
- risk-triage score transaction fraud risk and explain the decision.
- ArrowCode a multi-agent engineering orchestrator in a terminal UI.
- autooss-factory discover gaps, score them, and scaffold new tools.
- freshness-aware-rag re-rank retrieval by time decay and source authority, so recent trusted sources win.
- channelscrape a polite, pluggable framework for scraping product data across channels.
- sentinelscrape an anti-bot fingerprint research engine.
- crawlsync semantic diff between two crawls.
- scrapeguard health monitoring for scrapers.
- schemaweaver infer a merged schema from messy extractions.
- unsynth local-first detection of AI-generated text and watermarks.
- open-humanizer an adversarial rewriter that studies how detectors score text.
Small, sharp tools that do one thing well. Clear READMEs, real tests, MIT licensed. We build open-source alternatives to closed tools from scratch, never by copying anyone's code.
Issues and pull requests are welcome on every repo.
