excalibur-mcp

eXcalibur MCP — AI agent access to X (Twitter) posting, monetized via DPYC Tollbooth Lightning micropayments. ## Getting Started 1. Call `session_status` to check your current session. 2. If no active session, follow the Secure Courier onboarding flow: - Get your **patron npub** from the dpyc-oracle's how_to_join() tool — this is the npub you registered as a DPYC Citizen, your identity for credit operations - Call `request_credential_channel(recipient_npub=<patron_npub>)` to receive a welcome DM (the response includes a session phrase / poison) - Reply via your Nostr client with your X API credentials in JSON - Call `receive_credentials(sender_npub=<patron_npub>, service=<service>, poison=<session phrase>)` to vault your credentials — all three are required ## Credits Model Tool calls cost api_sats per call. Auth and balance tools are always free. Use `check_balance` to see your balance. Top up via `purchase_credits`. ## Troubleshooting Tool Failures When a tool