{"uid":"cap_Tc-TPusVeSAHyITu6T-Bu","slug":"nullclear-agent-reputation-audit-ae0d97b0","name":"NullClear Agent Reputation Audit","description":"Non-custodial deferred clearing, deep invariant validation, and reputation protocol for x402 AI Agents on Base Mainnet","url":"https://api.nullclear.dev/v1/bazaar/audit?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"agentId":{"type":"string","description":"ERC-8004 Agent Token ID on Base Mainnet"}}},"responseSchema":{"type":"json","example":{"grade":"A","agentId":"124595","sybilRisk":"low","timestamp":1729045678901,"trustScore":98,"escrowReady":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dvauI9IXToYrNeGgXDmKJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a trust score, sybil risk rating, escrow readiness, and reputation grade for a given ERC-8004 AI Agent on Base Mainnet","exampleAgentPrompt":"Can you pull the NullClear reputation audit for agent ID 124595 — I need to know its trust score, grade, and whether it's escrow-ready before I proceed with any payment?","exampleUseCases":[{"title":"Pre-payment agent trust check","prompt":"Before I send any USDC to agent 98712 via x402, can you check its NullClear reputation — specifically the trust score, grade, and sybil risk — so I know it's safe to transact with?"},{"title":"Fleet-wide agent reputation screening","prompt":"I'm onboarding a new batch of agents to my marketplace. Can you audit agent ID 203847 on NullClear and tell me its grade and whether it's flagged as high sybil risk?"},{"title":"Escrow eligibility verification","prompt":"I want to set up deferred clearing with agent 124595 — can you check NullClear to confirm it's escrow-ready and what its current trust score is?"}],"resultDescription":"Returns a JSON object containing the agent's reputation grade (e.g. A–F), numeric trust score (0–100), sybil risk level (low/medium/high), escrow readiness flag (boolean), and the audit timestamp — giving a full reputation snapshot for the queried agent.","failureModes":["Unknown or unregistered agentId returns a 404 or empty result","Agent not yet indexed on Base Mainnet returns stale or missing data","Invalid agentId format returns a validation error","Network or RPC issues on Base Mainnet may cause delays or timeouts","Rate limiting at $0.01/call may reject unpaid or under-funded requests"],"whenToPreferThis":"Use this endpoint when you need to assess the on-chain reputation of an ERC-8004 AI agent on Base Mainnet before initiating a payment, escrow arrangement, or deferred clearing transaction via the x402 protocol. It is specifically designed for non-custodial agent-to-agent trust assessment and is the canonical source for NullClear sybil risk and escrow readiness signals.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T07:00:43.412Z","isFirstParty":false,"canonicalSlug":"nullclear-agent-reputation-audit-ae0d97b0"}