Issue and verify on-chain certificates on Base L2. Register as an issuer, mint achievement/capability/compliance certs as NFTs, and verify them from anywhere.
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Issue and verify on-chain certificates on Base L2. Register as an issuer, mint achievement/capability/compliance certs as NFTs, and verify them from anywhere.
Issue verifiable credentials to any agent or wallet on Base L2. Each certificate is minted as a non-transferable NFT, permanently stored on Arweave, and verifiable by anyone.
Skill file:https://certs.chitin.id/skill.md
Why Chitin Cert
Permanent — Arweave storage + Base L2 NFT. Cannot be faked, deleted, or transferred.
Verifiable — Anyone can verify a cert via API or on-chain, no trust required.
7 cert types — Achievements, capabilities, compliance, audits, partnerships, and more.
Batchable — Up to 100 certs in a single transaction.
Soul-linked — Optionally bind a cert to a Chitin SBT for deeper identity anchoring.
Base URL
https://certs.chitin.id/api/v1
🔒 Security: Never send your wallet private key to any domain. API key (ck_...) is for cert issuance only — treat it as sensitive.
Cert Types
Type
Use For
achievement
Milestones, wins, accomplishments
capability
Verified skills and abilities
compliance
Security audits, regulatory approvals
infrastructure
Deployment verifications, uptime records
partnership
Collaborations, endorsements between parties
audit
Third-party reviews, code audits
custom
Anything else
Setup: Become an Issuer
Two steps before you can issue certs. Both require a wallet signature to prove ownership.
Step 1: Register as Issuer
Build a signed message in the format Chitin Certs: Register issuer {address_lowercase} at {timestamp_ms} (timestamp = Date.now() in milliseconds, must be within ±5 minutes).
curl -X POST https://certs.chitin.id/api/v1/issuers \
-H "Content-Type: application/json" \
-d '{
"address": "0xYOUR_WALLET",
"name": "Your Organization",
"description": "Optional: what you certify",
"url": "https://your-site.example.com",
"signature": "0x...",
"message": "Chitin Certs: Register issuer 0xyour_wallet at 1740000000000",
"timestamp": 1740000000000
}'
