Costable — Parametric Should-Cost Analysis for ChatGPT

io.github.1337mofo/costable

Parametric should-cost: P50/P80/P90 estimates, 801 materials, 25 countries, quote review.

client:ChatGPT transport:streamable-http tools:10

Install Costable — Parametric Should-Cost Analysis in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://costable.ai/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs