Tencent SkillHub · AI

Chitin Cert

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.

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Requirements

Target platform: OpenClaw
Install method: Manual import
Extraction: Extract archive
Prerequisites: OpenClaw
Primary doc: SKILL.md

Package facts

Download mode: Yavira redirect
Package format: ZIP package
Source platform: Tencent SkillHub
What's included: llms.txt, skill.json, skill.md

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Release facts

Source: Tencent SkillHub
Verification: Indexed source record
Version: 1.0.1

Provenance

Publisher: EijiAC24
Source page: View original listing
Canonical URL: Open canonical page

Documentation

ClawHub primary doc Primary doc: SKILL.md 21 sections Open source page

Chitin Cert — Verifiable On-Chain Certificates

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

TypeUse ForachievementMilestones, wins, accomplishmentscapabilityVerified skills and abilitiescomplianceSecurity audits, regulatory approvalsinfrastructureDeployment verifications, uptime recordspartnershipCollaborations, endorsements between partiesauditThird-party reviews, code auditscustomAnything 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 }' Response: { "success": true, "data": { "id": "iss_1740000000_abc123", "address": "0xyour_wallet", "name": "Your Organization", "trustTier": "unverified", "certCount": 0, "createdAt": "2026-02-20T00:00:00Z" } } Save your issuer id — needed for API key generation.

Step 2: Generate API Key

Build a signed message: Chitin Certs: Generate API key for {issuerId} at {timestamp_ms} curl -X POST https://certs.chitin.id/api/v1/auth \ -H "Content-Type: application/json" \ -d '{ "issuerId": "iss_1740000000_abc123", "name": "production-key", "signature": "0x...", "message": "Chitin Certs: Generate API key for iss_1740000000_abc123 at 1740000000000", "timestamp": 1740000000000 }' Response: { "success": true, "data": { "apiKey": "ck_abc123...", "name": "production-key", "createdAt": "2026-02-20T00:00:00Z" } } Save your apiKey — returned only once.

Issue a Certificate

curl -X POST https://certs.chitin.id/api/v1/certs \ -H "Authorization: Bearer ck_abc123..." \ -H "Content-Type: application/json" \ -d '{ "issuerAddress": "0xYOUR_WALLET", "recipientAddress": "0xRECIPIENT", "certType": "achievement", "title": "First Deployment on Base", "description": "Successfully deployed and operated a live service on Base L2.", "tags": ["base", "deployment", "milestone"], "evidence": "https://basescan.org/tx/0x..." }' Response: { "success": true, "data": { "tokenId": 2, "txHash": "0x...", "arweaveTxId": "abc123...", "certType": "achievement", "recipient": "0xrecipient", "isTBA": false } }

Field Reference

FieldRequiredDescriptionissuerAddress✅Your registered issuer wallet addressrecipientAddress✅Recipient's wallet addresscertType✅One of the 7 cert typestitle✅Cert title (max 200 chars)descriptionOptionalLonger explanationtagsOptionalString array for categorizationevidenceOptionalURL to proof/supporting materialexpiresAtOptionalISO 8601 expiry (e.g. "2027-01-01T00:00:00Z")passportRegistryOptionalERC-8004 registry address for passport-linked certspassportTokenIdOptionalRecipient's ERC-8004 token IDsoulRegistryOptionalChitinSoulRegistry address for soul-linked certssoulTokenIdOptionalRecipient's Chitin SBT token IDextensionOptionalArbitrary JSON object for custom metadata

Soul-linked Cert

Link directly to a Chitin soul for the strongest identity binding: { "issuerAddress": "0xYOUR_WALLET", "recipientAddress": "0xRECIPIENT", "certType": "capability", "title": "Verified Autonomous Agent", "soulRegistry": "0x4DB94aD31BC202831A49Fd9a2Fa354583002F894", "soulTokenId": 42 }

Batch Issue (Up to 100 Certs)

curl -X POST https://certs.chitin.id/api/v1/certs/batch \ -H "Authorization: Bearer ck_abc123..." \ -H "Content-Type: application/json" \ -d '{ "issuerAddress": "0xYOUR_WALLET", "certs": [ { "recipientAddress": "0xADDR_1", "certType": "achievement", "title": "Hackathon Winner" }, { "recipientAddress": "0xADDR_2", "certType": "capability", "title": "Verified Code Auditor", "description": "Passed the Chitin code audit track" } ] }' Response: { "success": true, "data": { "tokenIds": [3, 4], "txHash": "0x...", "count": 2 } }

Get cert details

curl https://certs.chitin.id/api/v1/certs/2

Verify on-chain status

curl https://certs.chitin.id/api/v1/verify/2 Response: { "tokenId": 2, "isValid": true, "isRevoked": false, "issuer": "0x...", "recipient": "0x...", "certType": "achievement", "issuedAt": 1740000000 }

List certs by recipient

curl "https://certs.chitin.id/api/v1/certs?passport=0xRECIPIENT"

List certs by issuer

curl "https://certs.chitin.id/api/v1/certs?issuer=0xYOUR_WALLET"

List by ERC-8004 passport

curl "https://certs.chitin.id/api/v1/certs?passportRegistry=0x8004A169FB4a3325136EB29fA0ceB6D2e539a432&passportTokenId=42"

Webhooks

Get notified when certs are minted under your issuer: curl -X POST https://certs.chitin.id/api/v1/webhooks \ -H "Authorization: Bearer ck_abc123..." \ -H "Content-Type: application/json" \ -d '{ "url": "https://your-server.example.com/webhook", "events": ["cert.minted"] }' Payload: { "event": "cert.minted", "tokenId": 2, "txHash": "0x...", "arweaveTxId": "...", "certType": "achievement", "issuer": "0x...", "recipient": "0x..." }

MCP Server

For AI assistants that support MCP, use issue_cert and verify_cert tools directly: npx -y chitin-mcp-server

Endpoints Reference

EndpointMethodAuthDescription/issuersPOSTWallet sigRegister as issuer/issuers?address=0x...GETNoneLook up issuer/authPOSTWallet sigGenerate API key/certsPOSTAPI keyIssue a cert/certs/batchPOSTAPI keyBatch issue (max 100)/certs/{certId}GETNoneGet cert details/certs?passport=0x...GETNoneList by recipient/certs?issuer=0x...GETNoneList by issuer/verify/{certId}GETNoneVerify on-chain/metadata/{tokenId}GETNoneERC-721 metadata/metadata/{tokenId}/image.svgGETNoneCert SVG image/webhooksPOSTAPI keyRegister webhook

Contracts (Base Mainnet, Chain ID: 8453)

ContractAddressCertRegistry (Proxy)0x9694Fde4dBb44AbCfDA693b645845909c6032D4dCertRegistry (Impl V4)0xDc487e6ef33220177c3EBAFC71B5aF2FDb2ce0DFChitinSoulRegistry0x4DB94aD31BC202831A49Fd9a2Fa354583002F894

About Chitin Cert

Chitin Cert is the credential layer of the Chitin Protocol. Your Chitin soul is your identity. Your certs are your verified history. Certificates: certs.chitin.id Identity: chitin.id MCP Server: chitin.id/docs/mcp

Category context

Agent frameworks, memory systems, reasoning layers, and model-native orchestration.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package

1 Docs1 Config1 Files

skill.md Docs
skill.json Config
llms.txt Files