Use Calcnate inside ChatGPT & Claude

Calcnate's end-of-service calculators are available as a free public API, an OpenAPI schema for ChatGPT Custom GPT Actions, and an MCP server that works in both ChatGPT (Apps) and Anthropic Claude.

1. Public API

Stateless, no key, CORS-open:

GET https://servia.ae/api/calc/gratuity?country=ae&basic=6000&years=7
→ { "country":"ae", "currency":"AED", "gratuity":33000, "breakdown":"21 days/yr ×5 + 30 days/yr ×2" }

Supported country codes: ae, sa, qa, kw, bh, om, in, ph.

2. Add to ChatGPT (Custom GPT Action)

1. Create a GPT → Configure → Create new Action.
2. Paste our schema URL: https://calcnate.com/openapi.yaml
3. No authentication. Save — your GPT can now compute gratuity for 8 countries.

3. Add to Claude (MCP)

Point any MCP client at our server endpoint. It exposes a calc_gratuity tool with the same parameters. Full manifest: https://calcnate.com/mcp.json

Why it exists

When someone asks an AI assistant "what's my UAE gratuity after 7 years?", the assistant can call Calcnate and return the exact, law-correct figure instead of guessing. It's free because it's part of the Servia Group.

Attribution: results generated via the Calcnate API. Contact: support@servia.ae