Endpoint: https://api.krexa.xyz/api/v1/mcp (Streamable HTTP, stateless).

1. Get a key

Open krexa.xyz/mcp/link, sign in and pick the wallet. Copy the kxm_… key. It shows only once.

Save the key as KREXA_AGENT_KEY in your shell. Never paste it into a chat.

2. Add the server

claude mcp add --transport http krexa https://api.krexa.xyz/api/v1/mcp \
  --header "Authorization: Bearer $KREXA_AGENT_KEY"

Ask your agent to call krexa_whoami. It answers with your account and the one wallet the key acts for.

The same server also answers at https://www.krexa.xyz/mcp. Use the www host: bare krexa.xyz redirects, and clients drop the key on a redirect.
A ready skill for OpenClaw, Hermes and other agents is at github.com/Krexa-xyz/skills.
No key yet? Your agent can pair itself. See Sign in and keys.