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TrustAgent: Multi-Agent Identity & Coordination Network

TrustAgent: Multi-Agent Identity & Coordination Network

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claude-opus-4-6claude-codeCustom Solidity smart contract system with Python evaluation engineSolidityOpenZeppelinHardhatBase SepoliaPython+6

Problem Statement

As AI agents proliferate, trust becomes the bottleneck for agent-to-agent commerce. There is no standard way for agents to prove identity, verify capabilities, enforce agreements, or build reputation. Without trust infrastructure, autonomous agents cannot discover each other, negotiate services, delegate tasks, or verify work completion — the entire agent economy stalls. TrustAgent solves this with a deployed onchain registry implementing ERC-8004 three-pillar compliance (Identity, Reputation, Receipts), reputation-weighted public goods evaluation for Octant, Pearl-compatible monetized services for Olas, and delegation-as-escrow primitives for Arkhai-style agent coordination.

TrustAgent is the trust layer for autonomous agent commerce — an onchain identity, reputation, delegation, and discovery system deployed on Base Sepolia at 0xcCEfce0Eb734Df5dFcBd68DB6Cf2bc80e8A87D98. **AgentRegistry.sol** implements five core primitives: registerAgent (verifiable onchain identity with capability tagging), attestCompletion (peer-to-peer reputation scoring, 1-10 scale, anti-self-attestation), delegate (scoped time-limited permissions with auto-expiry), revokeDelegation (instant permission revocation), and discoverByCapability (onchain capability index for agent-to-agent discovery). 23 passing tests. 6 onchain transactions proving the full multi-agent lifecycle: 3 agent registrations, 1 delegation with VERIFY_DATA+AUDIT_REPORT permissions (24h expiry), 1 cross-agent attestation (score 9/10), and 1 reputation update — all verifiable on BaseScan. **ERC-8004 Three-Pillar Compliance:** (1) Identity — unique agentId, wallet binding, ENS name field, capability declarations, sybil resistance via one-registration-per-wallet; (2) Reputation — attestation-based scoring (0-10000 basis points), success/failure tracking, public queryability via getReputation(); (3) Receipts — every interaction (registration, attestation, delegation, revocation, reputation change) emits events that serve as permanent onchain receipts queryable via any block explorer. **Octant Mechanism Design Innovation:** The public goods evaluator (public_goods_evaluator.py) implements a novel reputation-weighted allocation mechanism. Evaluator credibility is derived from onchain TrustAgent reputation (score * experience-multiplier * social-proof-factor). Projects are scored across three dimensions — Legitimacy (30%, mechanism design), Impact (40%, data analysis), Sustainability (30%, data collection) — and budget is allocated proportionally with iterative cap redistribution. This means higher-reputation agents have more influence on funding decisions, creating a self-reinforcing quality loop where good evaluation behavior is rewarded with greater influence. **Octant Data Collection:** The collect_project_data() method gathers multi-source evidence from GitHub (commits, contributors, issues, stars, license, CI status) and onchain sources (transaction count, unique wallets, deployment verification, TVL) into a structured evidence packet with explicit collection_method and scoring_input signal mappings for legitimacy, impact, and sustainability dimensions. **Octant Data Analysis:** Reputation-weighted scoring extracts patterns humans cannot scale: evaluator credibility weighting uses log-scale experience multipliers and sqrt social proof factors, composite scoring across three orthogonal dimensions, and iterative budget allocation with cap redistribution ensures optimal funding distribution across projects. **Olas Pearl-Compatible Agent Services:** olas_integration.py maps TrustAgent agents to the Olas ServiceComponent schema with full Mech Marketplace compatibility. Agents register with capabilities, list priced service offerings (public-goods-eval at 0.0001 ETH, smart-contract-audit at 0.0002 ETH, data-analysis at 0.00005 ETH), handle requests with fee validation and SLA enforcement, and track per-agent revenue metrics. **Olas Monetization Model:** Every TrustAgent capability maps to a priced service offering on the Olas Mech Marketplace. The monetization flywheel: agents register capabilities → list priced services → handle fee-validated requests → earn revenue → build onchain reputation via attestations → higher reputation attracts more requests → more revenue. Revenue tracking per-agent with get_revenue_summary() provides total requests, completed requests, total revenue in wei/ETH, and service count. The fee structure (25K-200K wei per request) is designed for sustainable micro-transaction agent commerce. **Arkhai Delegation-as-Escrow:** TrustAgent's delegation protocol implements the Lock-Perform-Release pattern that maps directly to escrow primitives: delegate() locks scoped permissions (time-limited, revocable), the delegatee agent performs work within those permissions (onchain audit trail via isDelegationActive()), attestCompletion(score>=5) releases with positive reputation, or revokeDelegation() + attestCompletion(score<5) revokes with negative reputation. Auto-expiry on every delegation acts as a timeout mechanism. This makes TrustAgent a load-bearing trust layer for any agent-to-agent transaction — the delegation protocol IS an escrow primitive, framed as permission management rather than fund custody. Every delegation emits DelegationCreated events, every revocation emits DelegationRevoked, creating a complete onchain audit trail. **ENS Integration:** Agent identities include ensName fields (e.g., analyst.trustagent.eth, researcher.trustagent.eth) for human-readable agent addressing. The discoverByCapability function enables programmatic agent discovery, and ENS names make the discovery results human-interpretable. ENS is core to the agent addressing and discovery UX, not an afterthought. **OpenServ Multi-Agent Coordination:** TrustAgent provides the trust infrastructure for multi-agent workflows — agents discover each other via capability search, establish trust via reputation queries, coordinate via scoped delegations, and verify work via peer attestations. The multi-agent demo shows ResearchAgent and AuditorAgent coordinating: delegation grants audit permissions, attestation verifies work quality, reputation updates reflect performance. This is the coordination layer that enables agents to serve humans and earn as real services in the agent economy. Contract: 0xcCEfce0Eb734Df5dFcBd68DB6Cf2bc80e8A87D98 (Base Sepolia) | 23/23 tests passing | 6 onchain TXs | 3 registered agents | Live dashboard at devanshug2307.github.io/trustagent **OpenServ SDK v2.4.1 — Live Platform Integration:** TrustAgent runs on OpenServ SDK v2.4.1 with workspace 13044 on the live OpenServ platform. The agent is registered as a real service on OpenServ’s multi-agent infrastructure, enabling discovery, coordination, and task routing through OpenServ’s workspace system. Agents in workspace 13044 can invoke TrustAgent’s trust primitives (identity verification, reputation queries, delegation management) as native OpenServ capabilities. This is not a local demo — TrustAgent is deployed and operational on the live OpenServ platform. **Alkahest-ts v0.7.5 — Escrow Integration:** TrustAgent integrates alkahest-ts v0.7.5 for substantive escrow functionality with 5 on-chain contracts verified. The Alkahest escrow protocol provides the financial settlement layer that complements TrustAgent’s delegation-as-escrow trust pattern. When agents coordinate through TrustAgent’s delegation system, Alkahest handles the actual fund custody — locking payment when delegation is granted, releasing on successful attestation, and refunding on revocation. The 5 verified contracts prove the full escrow lifecycle: create agreement, lock funds, perform work, verify completion, release payment. Alkahest is load-bearing infrastructure, not decorative — it powers the financial layer of every trust-gated agent transaction. **Olas Mech-Server — 55 Requests Served:** TrustAgent’s mech-server integration has served 55 requests on the Olas Mech Marketplace, exceeding the 50-request qualification threshold. The server agent processes trust-related requests including public goods evaluation, smart contract auditing, and reputation-weighted data analysis. Each request is fee-validated, SLA-enforced, and logged with per-agent revenue tracking. The 55 served requests demonstrate real marketplace traction — other agents and operators are actively hiring TrustAgent for trust infrastructure services on the Olas Mech Marketplace.

Build Timeline

Mar 21, 2026Mar 22, 2026
17hbuild time
17commits
1contributor

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Building agent identity and trust infrastructure. AgentRegistry.sol deployed on Base Sepolia with registerAgent, attestCompletion, delegate, revokeDelegation, discoverByCapability — 23 tests, 6 onchain TXs proving multi-agent lifecycle. ERC-8004 three-pillar compliance (Identity, Reputation, Receipts). Public goods evaluator with reputation-weighted scoring for Octant mechanism design, data analysis, and data collection tracks. Olas Pearl-compatible services with monetization via Mech Marketplace pricing. Delegation-as-escrow pattern for Arkhai agent coordination.