ZipKit MCP Server

Live: https://zipkit-mcp.scy1he02.workers.dev Thailand tax, visa & expat-money tools exposed as an MCP (Model Context Protocol) server for AI agents.

The business logic

• Free tools drive adoption: tax calculator, remittance checker, residency counter
• Premium tools monetize: remittance rule engine (multi-year planning scenarios) + Thai expert knowledge base
• Premium unlocked via x-zipkit-key header matching ZIPKIT_PREMIUM_KEY secret
• Monetization path: list on MCPize (85% rev share, they handle billing) or sell keys direct via zipkit.cc/mcp + Stripe

Tools

Tool	Tier	What it does
thai_tax_calculator	Free	Official 0–35% progressive brackets w/ breakdown
remittance_tax_checker	Free	Por.161/162 four-factor verdict
residency_day_counter	Free	180-day threshold evaluation from stay pairs
remittance_rule_engine	🔒	Multi-year split scenarios + savings computation
thai_expert_query	🔒	Curated KB: banking-by-visa, visa reqs, insurance, fees, deadlines, cost-of-living

Usage (any MCP client / raw JSON-RPC)

# List tools
curl -X POST https://zipkit-mcp.scy1he02.workers.dev/ \
  -H "content-type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

# Call a tool
curl -X POST https://zipkit-mcp.scy1he02.workers.dev/ \
  -H "content-type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"thai_tax_calculator","arguments":{"annual_income_thb":1200000}}}'

Premium calls add header: -H "x-zipkit-key: <key>"

Deploy / operate

npm install
npx wrangler dev          # local
npx wrangler deploy       # production
npx wrangler secret put ZIPKIT_PREMIUM_KEY   # set premium gate key

Distribution TODO

• [ ] Submit to PulseMCP, mcp.so, Glama, Smithery (free listings)
• [ ] Apply to MCPize marketplace (85% share, billing handled)
• [ ] Create zipkit.cc/mcp pricing page → Stripe key sales
• [ ] Add "Available as MCP server" badge on ZipKit tool pages (cross-marketing)

Data caveat

All knowledge-base content mirrors zipkit.cc research with asof: 2026-08 stamps. Update cadence: whenever ZipKit money guides get fact-checked, mirror changes here.