Contracts

Primary contract: MantleAgentIdentity — ERC-721 agent identity with [DecisionLogged](/glossary#decisionlogged-event) audit log. Canonical deployment (Mantle Sepolia, chain 5003):


Contract	`0xB86dC64573089D8DD89C5686010295bB4412D652`
Owner + agent NFT holder	`0x59ffc8907beaA275F29B466BCB1D9BbfeaDAd165`
Agent token id	`0`
Source verify	Sourcify `exact_match` (bytecode matches `forge build` artifact)
Deploy tx	`0xa1b8ae9629fcbaad0816c644695820a15784750a0a95c2f8de93b6c1cdf1d7ad`

Source: packages/contracts/src/MantleAgentIdentity.sol

Events

Event	Indexed fields	Payload
`DecisionLogged`	`agentId`	`rationaleHash`, `actionType`, `metadataUri`, `operator`

Functions

Function	Visibility	Description
`mintAgent(address operator)`	external, `onlyOwner`	Mint agent NFT to `operator`, return `tokenId`
`logDecision(uint256 agentId, bytes32 rationaleHash, string actionType, string metadataUri)`	external	Caller must own `agentId`; updates snapshot + emits event

View mappings

Mapping	Returns
`lastRationaleHash(agentId)`	Latest rationale hash
`lastActionHash(agentId)`	`keccak256(actionType)`
`lastMetadataUri(agentId)`	Latest metadata URI
`nextTokenId`	Next mint id

Build & verify

cd packages/contracts
forge build

Set AGENT_IDENTITY_ADDRESS and AGENT_TOKEN_ID in worker + web env. The canonical deployment is already live; only redeploy if you are running a private fork.

ABI

Generated ABI after build:

packages/contracts/out/MantleAgentIdentity.sol/AgentIdentity.json

Verify source on Mantlescan after any new deployment.

Get started

Concepts

How it works

API reference

Guides

About

Events

Functions

View mappings

Build & verify

ABI

​Events

​Functions

​View mappings

​Build & verify

​ABI

Events

Functions

View mappings

Build & verify

ABI