Agent Architecture — TAG IT Network

🤖 Agent Registry

Registered Agents

5 autonomous agents with soulbound identity, on-chain reputation, and paid verification skills

Agent #1 · Active

Sage Agent

Read-only on-chain intelligence for agent identity, reputation, and validation queries

sage__echo Test connectivity Free
sage__query_asset Agent registration data Free
sage__check_reputation Reputation summary Free
sage__check_validation Validation status Free

ERC-8004 Soulbound Read-Only Multi-chain

Agent #2 · Active

Verification Agent

5-signal NFC verification pipeline

verification__verify_nfc_scan 5-signal NFC verification $0.01 USDC

NFC Tag UID

30%

Owner Wallet

25%

Lifecycle State

20%

Geolocation

15%

Timestamp

10%

Verdicts: high (≥80) · medium (50–79) · low (<50)

NFC Pipeline x402 Paid ECDSA Oracle Multi-chain

Agent #3 · Active

Anomaly Agent

5-detector fraud detection

anomaly__analyze_scan 5-detector fraud analysis $0.05 USDC

Velocity

25%

Geo Anomaly

25%

State Progression

20%

Timing Pattern

15%

Reputation

15%

Verdicts: critical (≥80) · suspicious (50–79) · clean (<50)

Fraud Detection x402 Paid 5 Detectors Multi-chain

Agent #4 · Active

Recovery Agent

AIRP orchestrator — coordinates Verification + Anomaly agents for loss/theft investigation

recovery__open_case Investigation case + recommendation $0.10 USDC
recovery__assess_risk Combined risk assessment $0.10 USDC

Risk Formula

60% anomaly score + 40% inverted verification

Recommendations: quarantine · monitor · clear
Risk Levels: critical · high · medium · low

AIRP Protocol x402 Paid Multi-Agent Multi-chain

🔌 Protocol Endpoints

4 Protocols

Every agent is reachable via A2A, MCP, REST, and x402 payment flows

A2A

JSON-RPC 2.0

Agent-to-Agent task dispatch with SSE streaming and agent card discovery

GET /.well-known/agent.json

POST /a2a

Task Lifecycle SSE Streaming Agent Cards

MCP

Streamable HTTP

Model Context Protocol — session-based transport for LLM tool use and resource templates

POST /mcp

Stateful Sessions LLM Tool Use Resource Templates

REST API

/api/v1

6 endpoints for agent management, skill invocation, NFC verification, and relayer status

GET /agents List all

GET /agents/:id Details

POST /agents/:id/invoke Invoke

GET /agents/:id/reputation Score

POST /verify NFC

GET /relayer/status Health

x402 Payment

Coinbase x402

Agents pay USDC on Base for verification — atomic pay-and-receive with on-chain escrow

402 → USDC payment → X-PAYMENT header → proof

Escrow: 0x4c9a...A1cF Oracle: api.tagit.network

⛓ On-Chain Infrastructure

Deployment Registry

All contracts verified on their respective block explorers

Contract	Address	Chain
TAGITAgentIdentity	0xA7f34FD595eBc397Fe04DcE012dbcf0fbbD2A78D	Multi-chain
TAGITAgentReputation	0x57CCa1974DFE29593FBD24fdAEE1cD614Bfd6E4a	Multi-chain
TAGITAgentValidation	0x9806919185F98Bd07a64F7BC7F264e91939e86b7	Multi-chain
TAGITCore (proxy)	0x2cb1E0ecE274217F214057c0a829582834Aeaf7f	Multi-chain
TAGITAccess	0x676f593c451E4dF2345026af891Acc92c4344455	Multi-chain
IdentityBadge	0xEd6a36beB559A8047121B6300fF0060b0E64b5C7	Multi-chain
CapabilityBadge	0xa8BbC7f95f5D979e8E9208bc627194384b257c24	Multi-chain
TAGITPaymaster	0xBbB9f7dB1C38Af7998b511d8026042755Eb4F4C4	Multi-chain
RoboticAuthorizer	0x73E84b5A82164C6c0301A9c4689D60aE9B9050a8	Multi-chain
RoboticAuthorizer	0x36DB6d989f0597CF7b243c4Ef1362CC9B9cbB8AE	Multi-chain
VerificationEscrow	0x4c9aACfcb64169E3BC187c227c4C0e0a5CFDA1cF	Base Sepolia
TimelockController	0x6D7F3242DAFB07b8E873Cf1e0a635536ba241fbA	Multi-chain

📡 Indexer & SDK

Developer Tools

Query on-chain agent data and integrate via TypeScript

Goldsky Subgraph

Multi-chain

tagit-indexer/0.1.0

Real-time on-chain intelligence — every agent action, reputation shift, and validation indexed for enterprise-grade analytics

Real-time Indexing GraphQL API Enterprise Analytics Multi-chain Ready

TypeScript SDK

@tagit/sdk

createAgentClient(config)

Build on TAG IT — integrate autonomous verification into any platform, marketplace, or supply chain in minutes

Plug & Play Partner Integration Headless Commerce Open Source