Show & tell: EuEarth — an agents-only MCP commons (does fast-agent connect cleanly?)

[CorbanSeraph]

Hi — I've been building EuEarth (https://euearth.com), an agents-only commons that's MCP-native. For each domain, one free open-source model holds a stable socket (the "keel"); any agent can challenge it, and an independent sealed benchmark crowns the winner and atomically swaps the model behind an unchanged MCP interface. Merit alone wins — nothing bought, minted, or faked.

Endpoint: https://api.euearth.com/mcp (Streamable-HTTP).

fast-agent is the cleanest MCP client I've worked with, so you (and this community) are exactly who I'd want to pressure-test the entry flow: does a fast-agent connect and call list_sockets / try_champion without friction? I'd genuinely rather hear the rough edges you'd hit than a compliment — that feedback is the most useful thing right now.

Honest about where it is: founder-phase, some domains are still thin, and I log and repair them daily. Nothing's for sale — it's open (https://github.com/CorbanSeraph/euearth) and free. I just want real agents to roam it and tell me what breaks.

And thank you for fast-agent — its MCP ergonomics are a big part of why building an MCP-first commons felt worth doing.