# Raintree Technology - Complete Context > Raintree Technology builds reliable AI products and open-source developer tools. Founded in 2025 in San Francisco and operated by FinSync LLC, the company builds production SaaS and open-source developer infrastructure. ## Organization - Name: Raintree Technology - Legal operator: FinSync LLC - Founded: 2025 - Location: San Francisco, CA, USA - Website: https://raintree.technology/ - Founder: Zachary Roth (https://zacharyr0th.com) - Founder GitHub: https://github.com/zacharyr0th - Founder X: https://x.com/zacharyr0th - Founder LinkedIn: https://www.linkedin.com/in/zacharyr0th/ - Role: Company behind BetterOff, FlightSweeper, and open-source developer tooling - Usage: Accounts, contracts, ownership, and legal structure ## About Raintree Technology builds reliable AI products and open-source developer tools for people and agents. ## Socials - GitHub: https://github.com/raintree-technology - X: https://x.com/raintree_tech (@raintree_tech) - LinkedIn: https://linkedin.com/company/raintree-tech ## Portfolio The /portfolio page lists active public work under Raintree Technology, organized into products and open-source infrastructure. ### Products #### BetterOff - Portfolio entry: https://raintree.technology/portfolio#betteroff - Website: https://betteroff.finance/ - Description: Brings spending, investments, assets, debts, and net worth into one view so people can see where they stand and what to do next. - About: Personal financial intelligence SaaS with private-by-default workspaces, optional sharing, read-only integrations, and evidence-linked AI output. #### FlightSweeper - Portfolio entry: https://raintree.technology/portfolio#flight-sweeper - Website: https://flightsweeper.com/ - Description: Finds live fares across flexible dates and carries the selected trip into a human-approved checkout—on the web or through an agent. - About: Production travel system with shared live airfare search, agent access through MCP, quote review, approval-gated checkout, ticketing, and reconciliation. ### Open Source Dev Tools #### DocPull - Portfolio entry: https://raintree.technology/portfolio#docpull - Website: https://github.com/raintree-technology/docpull - GitHub: https://github.com/raintree-technology/docpull - Description: Turns changing websites into cited, reproducible context that agents can verify before they act. #### HIG Doctor - Portfolio entry: https://raintree.technology/portfolio#hig-doctor - Website: https://apple.raintree.technology/ - GitHub: https://github.com/raintree-technology/hig-doctor - Description: Finds platform-specific UI issues before release with 431 Apple HIG checks across 14 frameworks. #### Trellis - Portfolio entry: https://raintree.technology/portfolio#trellis - Website: https://github.com/raintree-technology/trellis - GitHub: https://github.com/raintree-technology/trellis - Description: Catches risky shortcuts, security footguns, and structural debt with shared Biome checks and deterministic JSON fix lists. #### PolicyStrata - Portfolio entry: https://raintree.technology/portfolio#policystrata - GitHub: https://github.com/raintree-technology/policystrata - PyPI: https://pypi.org/project/policystrata/ - Paper: https://raintree.technology/writing/policystrata - PDF: https://raintree.technology/writing/policystrata/PolicyStrata.pdf - Artifact zip: https://github.com/raintree-technology/policystrata/releases/download/policystrata-paper-2026-06-26/policystrata-submission-kit-2026-06-26.zip - Artifact mirror: https://raintree.technology/artifacts/policystrata/policystrata-submission-kit-2026-06-26.zip - Description: Catches policy drift before release by turning cross-layer failures into deterministic, reproducible tests. - Reproduce command: `POLICYSTRATA_RUN_ROOT=/tmp/policystrata-final ./scripts/reproduce-final.sh` - Paper PDF SHA256: `3bccba1ca96c7f818eb606f52908561421463ba3b7cf288aee8368524ebe5cda` - Artifact zip SHA256: `961778c1e8affc04f76e27ce7958572d904e69d7701494e0047e4f7bffbc466d` ## Site Pages - Home: https://raintree.technology/ - Portfolio: https://raintree.technology/portfolio - BetterOff: https://betteroff.finance/ - FlightSweeper: https://flightsweeper.com/ - PolicyStrata: https://github.com/raintree-technology/policystrata - DocPull: https://github.com/raintree-technology/docpull - HIG Doctor: https://apple.raintree.technology/ - Trellis: https://raintree.technology/portfolio#trellis - Writing: https://raintree.technology/writing - DocPull evidence workflow: https://raintree.technology/writing/docpull-5 - PolicyStrata paper: https://raintree.technology/writing/policystrata - PolicyStrata PDF: https://raintree.technology/writing/policystrata/PolicyStrata.pdf - Privacy: https://raintree.technology/privacy - Markdown site summary: https://raintree.technology/page.md - RSS feed: https://raintree.technology/feed.xml - LLM index: https://raintree.technology/llms.txt - Sitemap: https://raintree.technology/sitemap.xml - Robots: https://raintree.technology/robots.txt ## Writing ### DocPull: Local-First Web Evidence for Agents - URL: https://raintree.technology/writing/docpull-5 - Date: 2026-06-23; updated 2026-07-21 - Summary: Collect inspectable web evidence locally, block paid routes with a zero-dollar budget, and add providers only when local routes fall short. - Result: Across 120 runs, direct crawl performed best or tied on five of eight targets. Paid routes helped most with discovery, fresh results, and archived pages. OKF stored pages as Markdown concept files with manifests and generated indexes. ### PolicyStrata: Responsibility-Scoped Tests for Policy Drift - URL: https://raintree.technology/writing/policystrata - Date: 2026-06-26; updated 2026-07-29 - Summary: Test whether manifests, validators, compilers, database controls, and release filters preserve their assigned responsibilities as policies change. - Result: DataPolicyDriftBench detected all 1,720 injected faults in the implemented fault model and reported zero false positives across 80 clean controls. - Limits: The result covers the published benchmark and fault model; it does not claim recall on unknown production failures. ## Contact - General: hello@raintree.technology ## FAQ Q: What is Raintree Technology? A: It is the company behind BetterOff, FlightSweeper, and open-source developer tooling. The public brand and website are operated by FinSync LLC. Q: What does Raintree Technology build? A: Production SaaS and open-source developer infrastructure for reliable AI and data workflows. Q: What apps live under Raintree Technology? A: BetterOff (betteroff.finance) and FlightSweeper (flightsweeper.com). Q: What open source tools live under Raintree Technology? A: PolicyStrata (github.com/raintree-technology/policystrata), DocPull (github.com/raintree-technology/docpull), HIG Doctor (apple.raintree.technology), and Trellis (github.com/raintree-technology/trellis). --- Last Updated: 2026-08-12