Remote MCP Servers for Connecting APIs to Claude and ChatGPTRemote MCP Servers for Connecting APIs to Claude and ChatGPT
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Sungjun Park
• 1d
We build remote MCP servers — the piece that lets Claude and ChatGPT actually call your API instead of guessing about it.
Two we run in production right now:
• korea-data-mcp — 6 tools over Korean public-data APIs
• korea-ocean-mcp — 8 tools over Korea's marine and weather observation data (tides, sea temperature, buoy readings)
Both are remote (hosted, not a local stdio script), so a client pastes one URL into Claude Desktop, Claude Code or any MCP-capable client and the tools show up.
Three things we learned building them:
1. The hard part isn't the protocol, it's tool design. Six well-named tools beat thirty thin wrappers, because the model has to choose correctly without reading your docs.
2. Auth belongs on the server. Never make a user paste an API key into a chat window.
3. Error messages are prompts. "No station found for that name — try one of: ..." lets the model recover; "400 Bad Request" does not.
If you have a public or internal API and want it usable from Claude/ChatGPT, that is what we do. Typical delivery: 5 days.
ClaudemcpChatGPT
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