Taxley launches free MCP server for UK Corporation Tax calculations in AI assistants

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Taxley UK LLP has published a free, public Model Context Protocol server that lets AI assistants call UK Corporation Tax calculators instead of estimating answers. The server works over HTTPS using JSON-RPC 2.0, requires no API key or authentication, and exposes 17 read-only tools. Developers can connect it to clients such as Claude or ChatGPT by adding its URL as a custom connector, or explore it directly with curl. Responses include plain-text answers along with structured figures, sources and a link to the same calculation on the Taxley website. The article notes the results are general guidance rather than tax advice.

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