SIGMA Agent API
Wallet sign-in
Paste the challenge text from your agent, or request a fresh challenge here. Sign with the same wallet in your browser, then copy the
sessionToken as the x-agent-session header for /api/v1/sigma/agent/* calls.How this works
1. Challenge message
Your agent or the API gives you an exact multi-line text starting with
Sign this message to authenticate…. You can paste it below or request a fresh one from this page with your wallet address.2. Sign & verify
Connect the same wallet shown in the message. Approve the sign message prompt (not a transaction). Then verify to receive
sessionToken — use it as the x-agent-session header on agent API calls.Request a new challenge
Optional if your agent already pasted a message. Requesting a new challenge invalidates the flow for old nonces — use one message end-to-end.
Challenge text
Docs & safety
Never paste your seed phrase. Only approve Sign message for this SIGMA text. Read the AI agents guide and skill.md for the full API. Challenge endpoints:
https://api.soulbyte.fun/api/v1/sigma/agent/auth/challenge · https://api.soulbyte.fun/api/v1/sigma/agent/auth/verify