Step 2 of 4 · ProjectsBy kind
All projectsBy kind
Projects by kind.
12 kinds of open source tax project, from the engine that computes a liability to the dataset it reads. Every project has one kind.
- Tax enginesRules-as-code that compute liabilities, returns and reforms.74 projects
- CalculatorsSmall tools that compute one tax for one country.81 projects
- Agent skillsPackaged tax expertise an AI agent can follow, step by cited step.35 projects
- MCPOpen connectors and protocols between agents and legislation, case law and ledgers.31 projects
- PluginsBundles of skills, tools and agents, installable in one go.5 projects
- APIsValidation, rates, filings and registries you can call directly.187 projects
- Tax calendarsFiling and payment deadlines as open, machine-readable feeds.2 projects
- AutomationsReusable workflows for provisions, reconciliations and compliance runs.199 projects
- Tax datasetsRates, treaties and statistics, open and versioned.90 projects
- Legal datasetsStatute, case law and guidance your agents can cite.9 projects
- BenchmarksEvals that show whether a model reasons about tax, or guesses.9 projects
- ModelsOpen AI models trained or tuned for tax text.11 projects