Connect
MCP
Let your AI agent use Yumi's refined venue data mid-reasoning. Verified intelligence instead of hallucinations. The right answer in fewer calls.
In ChatGPT, just search for HeyYumi in the plugin directory and hit Connect — no server URL or API key needed (Google sign-in only). For Claude and Perplexity, paste the server URL below into a custom connector and sign in with Google. Other tools like Cursor: mint an API key (hmp_…) in the dashboard and add it as a header.
Get started free →Pick the tool you use
Open Plugins
ChatGPT web (chatgpt.com) or the desktop app → Settings → Plugins. You can also go to chatgpt.com/plugins or use the 'Plugins' entry in the sidebar. (No developer mode needed.)
Search HeyYumi
In the plugin directory search box, type heyyumi, reservation, Korean restaurant, or dining reservation. heyyumi is the surest match. Open the HeyYumi listing.
Connect & sign in with Google
Click 'Connect' and sign in with Google in the HeyYumi window. A dedicated key is minted automatically — no manual key. (If Connect is greyed out, it's usually your plan, region, or a workspace admin setting.)
Call it and ask
In a new chat, mention '@HeyYumi', or use the composer ＋ → More to pick HeyYumi, then ask 'using HeyYumi, …'.
What happens once you connect?
Your agent can call tools like search_places and nearby_places, and at Yumi Partner venues it can even book a table right in the chat (request_reservation → push to the owner's app → wait_for_reservation for the confirmed/declined outcome). Live questions like ‘is this available now?’, ‘how long is the wait?’, or ‘can 10 of us come in?’ go straight to the owner via request_live_status, answered within 5 minutes. During Open Season, personal interactive use is free. Only commercial use in a company product or service is licensed separately.
Using this at a company? Talk to us →Why MCP, not just REST
Built for agent pace
Agents make short, bursty calls. Tools plug in without a custom app.
Same data, same tokens
One meter with REST. Usage is tagged channel=mcp.
Right answer, fewer calls
We reconcile, filter, and add context up front so the agent lands in one shot.