SparkForge — 20+ Utility APIs with x402 Micropayments for ChatGPT

sh.sparkforge/sparkforge

20+ pay-per-use APIs: image gen, crypto data, email verify, SSL check, web scraping, and more.

client:ChatGPT transport:streamable-http

Install SparkForge — 20+ Utility APIs with x402 Micropayments in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://sparkforge.sh/mcp

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