| name | self-agent-id |
| description | Integrate Self Protocol Agent ID for ZK-powered, human-backed AI agent identity. Covers registration, verification, soulbound NFTs, Sybil resistance, and A2A patterns. Use when asked about agent identity, proof-of-human, Self Protocol, or ZK identity.
|
Self Agent ID
ZK-powered identity for AI agents via Self Protocol. Agents get soulbound ERC-721 NFTs verified through zero-knowledge passport authentication.
How It Works
- Human scans passport via Self app (ZK proof generated locally on phone)
- Hub V2 verifies the proof on-chain and notifies the registry
- Registry mints a soulbound NFT linking agent's key to unique human nullifier
- Agents sign requests via SDK; services verify against on-chain registry
No personal data leaves the user's device. Only a ZK proof and nullifier are submitted on-chain.
Registry Addresses
| Network | Chain ID | Registry Address |
|---|
| Celo Mainnet | 42220 | 0xaC3DF9ABf80d0F5c020C06B04Cced27763355944 |
| Celo Sepolia | 11142220 | 0x043DaCac8b0771DD5b444bCC88f2f8BBDBEdd379 |
Three on-chain registries (ERC-8004 compatible):
- SelfAgentRegistry — Core identity (soulbound ERC-721 + proof-of-human)
- SelfReputationRegistry — Aggregated reputation feedback
- SelfValidationRegistry — Third-party validation
REST API
Base: https://selfagentid.xyz/api
Get agent info:
web_fetch url="https://selfagentid.xyz/api/agent/info/42220/AGENT_ID"
List agents by wallet:
web_fetch url="https://selfagentid.xyz/api/agent/agents/42220/0xWALLET_ADDRESS"
Verify agent:
web_fetch url="https://selfagentid.xyz/api/agent/verify/42220/AGENT_ID"
Get agent card (A2A):
web_fetch url="https://selfagentid.xyz/api/cards/42220/AGENT_ID"
Register agent:
exec command="curl -s -X POST 'https://selfagentid.xyz/api/agent/register' -H 'Content-Type: application/json' -d '{\"mode\":\"linked\",\"network\":\"mainnet\",\"humanAddress\":\"0xWALLET\",\"disclosures\":{\"age\":true,\"ofac\":true}}'"
Registration Modes
| Mode | Key Type | Wallet Required | Best For |
|---|
linked | ECDSA | Yes (human) | Autonomous agents with human oversight |
wallet-free | ECDSA | No | Non-crypto users, embedded agents |
ed25519 | Ed25519 | No | OpenClaw, Eliza frameworks |
ed25519-linked | Ed25519 | Yes (human) | Ed25519 agents with human custody |
privy | Social login | No | Google/Twitter/email auth |
smartwallet | Passkey | No | Biometric auth, gasless revocation |
Verification Patterns
Agent-to-Service
Agent signs HTTP requests with headers:
x-self-agent-address — Agent's Ethereum addressx-self-agent-signature — ECDSA signaturex-self-agent-timestamp — Unix timestamp
Agent-to-Agent
Mutual verification between two agents. sameHuman() detects if two agents share the same human backer without revealing identity.
Agent-to-Chain
Smart contracts check isVerifiedAgent() on the registry directly. For gasless: agents sign EIP-712 typed data, relayer submits.
SDK Installation
| Language | Package | Install |
|---|
| TypeScript | @selfxyz/agent-sdk | npm install @selfxyz/agent-sdk |
| Python | selfxyz-agent-sdk | pip install selfxyz-agent-sdk |
| Rust | self-agent-sdk | cargo add self-agent-sdk |
Integration with Ottie
Ottie can integrate Self Agent ID for:
- Sybil-resistant identity: each agent backed by unique human
- A2A verification: verify other agents before DeFi interactions
- On-chain reputation: build verifiable trust history
- Proof-of-human gating: restrict sensitive operations to human-verified agents
