SpreadBench NCSX-IS — AI Infrastructure Bond Issuance Spread Index for ChatGPT

com.spreadbench/ncsx

AI-infrastructure bond issuance-spread index (NCSX-IS): 13 bonds, 2 tiers, 14 free MCP tools.

client:ChatGPT transport:streamable-http tools:14

Install SpreadBench NCSX-IS — AI Infrastructure Bond Issuance Spread Index in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://spreadbench.com/mcp

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