Agents & LLMs
Agents & LLMs
Modern AI agents, developer copilots, and large language models increasingly rely on machine-readable documentation to understand how to interact with APIs. Ziptax publishes first-class resources designed for this workflow, from a hosted MCP server to a drop-in Claude Skill to a machine-readable OpenAPI specification, so your agent can look up door-level U.S. and Canadian sales tax rates with minimal setup.
Available resources
Drop-in Skill for Claude Desktop that teaches Claude how to call the Ziptax API and reason about sales tax data.
Hosted Model Context Protocol server exposing lookup_tax_rate and
get_account_metrics tools over Streamable HTTP.
Canonical OpenAPI v3 JSON document describing every endpoint, parameter, and response schema.
LLM reference file
Ziptax publishes an llms.txt index at
developers.zip.tax/llms.txt that
acts as a machine-readable map of the developer documentation. Pointing an
agent at this file improves accuracy when generating code, answering
developer questions, or orchestrating tax calculations inside automated
workflows.
Need an API key? Create a free account at platform.zip.tax.
