Fast, deterministic payroll tax answers for every team, and every agent
Meet STE MCP, the agent-ready layer of the Symmetry Tax Engine® (STE). It puts production-grade payroll tax accuracy directly into the AI tools your team already uses and the AI features you're building for your own clients, so every answer is deterministic and auditable, never a generative guess.
Accurate compliance, effortless for every team
Works in your existing AI tools
Claude, Cursor, ChatGPT, or your own AI agent.
Natural-language queries
No payload, no setup, no code required.
Deterministic, auditable answers
Not a generative guess.
Read-only by design
Queries the engine, never touches client data.
Live tax tables
7,000+ jurisdictions, always current.
Engine-versioned results
Every answer traceable to an STE version.
Answers you can build on
The same engine, trusted at scale
- 64M+employee paychecks calculated each year
- 7,000+tax jurisdictions regularly updated
- 1B+payroll tax calculations performed
Who will love it?
Integrate in 3 easy steps
Connect the MCP server
One-time setup inside Claude, Cursor, ChatGPT, or your own AI agent. No prior Symmetry setup required.
Ask in natural language
No payload, no SDK, no code required.
Audit every answer
Full traceability via engine version and JSON replay.
FAQ
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Looking for more?
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