LLM Abacus for ChatGPT

com.llmabacus/pricing

Compare up-to-date pricing for 40+ LLMs (incl. Chinese) & estimate cost from tokens. EN/zh.

client:ChatGPT transport:streamable-http tools:2

Install LLM Abacus in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://llmabacus.com/api/mcp

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