excalibur_post_nostr_message

io.github.lonniev/excalibur-mcp · Verify this server

Publish a public Nostr note (kind 1) authored by your proven npub. eXcalibur cannot sign a note *as* you — a Nostr event must be signed by the key it claims to come from, and eXcalibur never holds your nsec. So for this one note it mints a fresh, ephemeral "scribe" keypair, signs with it, and ``p``-tags YOUR npub as the author. The p-tag renders the note as a real mention and places it in your own Nostr mentions, so you can see — and disown — anything published in your name. The author is always your **proven** npub from this session (the same npub you pass for billing); it is never a free-form argument, so no caller can scribe as anyone else. The note publishes to the DPYC relay set. The call **succeeds if at least one** relay accepts it; the response lists every relay's accept/reject and the accepted/attempted counts so you can see the note's real reach — a one-relay publish never reads as a clean broadcast.