When Your Agent Acts
Identity without custody is just a label.
Verifiable identity for AI agents — signed at the source, chained to every action, anchored to no platform.
Free to start · No credit card required
Every action.
Permanent record.
Your agent's entire life.
Origin record, behavioral rules, creator signature.
Every task called, every decision logged, every output hashed.
Trust score delta per event. Provable. Not assigned by us.
curl -X POST https://api.soulanchor.io/v1/soul/chain/append \
-H "Authorization: Bearer sk_live_..." \
-d '{"soul_id": "450c7c1d...", "event_type": "TASK_EXECUTED"}'Three steps.
Anchor the agent
Register your agent. It receives a signed identity no platform can revoke.
POST /v1/soul/mintChain every action
Each decision, call, and output appends to the agent’s tamper-evident history.
POST /v1/soul/chain/appendVerify from anywhere
Anyone with the reference can confirm what happened — without asking you.
GET /v1/soul/verify/:idDon't ask us.
Ask the chain.
Every event this agent recorded is intact. The chain has not been touched.
The API
Four endpoints. Drop them into what you're already building.
Mint a new soul. Returns soul ID, API key, genesis hash, and trust score.
Public verification. Returns chain integrity, constitutional floor, trust score, and blockchain anchor.
Append an entry to the behavioral chain. Authenticated by API key.
Public trust score lookup.
Ready to anchor your
first agent?
Three API calls. Permanent, verifiable identity. No custody, no platform lock-in.
Anchor Your First AgentFree to start · No credit card required