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Contractor Bid Estimator

Build a client job bid from cost components: labor hours x rate + materials + equipment + subs, then overhead, contingency and margin into an itemized bid price.

Free tier eligible — 500 calls/month with a free key from /pricing; x402 pay-per-call above quota.

Parameters

ParameterTypeRequiredDescription
material_costnumberoptionalTotal material cost
labor_hoursnumberoptionalLabor hours
labor_ratenumberoptionalLabor rate per hour
equipment_costnumberoptionalEquipment cost
subcontractor_costnumberoptionalSubcontractor cost
overhead_pctnumberoptionalOverhead percent of direct cost (default 10)
contingency_pctnumberoptionalContingency percent of direct+overhead (default 0)
margin_pctnumberoptionalProfit margin as a percent of the final bid price (default 15)

Call it over MCP (JSON-RPC 2.0)

curl -s https://wingmanprotocol.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "bid_estimator", "arguments": {"material_cost": 100, "labor_hours": 100, "labor_rate": 0.07}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/bid_estimator \
  -H 'Content-Type: application/json' \
  -d '{"material_cost": 100, "labor_hours": 100, "labor_rate": 0.07}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/bid_estimator from your browser.

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