# Services from x402trustlayer.xyz on Zero

> x402trustlayer.xyz serves 63 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/x402trustlayer.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402trustlayer.xyz/health.json

## Services

- [x402 Trust Layer - Seller Audition Coach](https://www.zero.xyz/c/x402-trust-layer-seller-audition-coach-37f6a4b1/llms.txt): $0.06/call via x402. Audits an API seller's routes against x402/Dexter trust standards and returns per-route coaching, scores, and fix instructions to help sellers pass certification.
- [x402trustlayer.xyz Attestation Issuance](https://www.zero.xyz/c/x402trustlayer-xyz-f4ce13b7/llms.txt): $0.04/call via x402. Issues a signed TrustLayer attestation for a merchant or entity after payment is confirmed via x402.
- [x402 Trust Layer – Bedrock Preflight Guard](https://www.zero.xyz/c/x402-trust-layer-bedrock-preflight-guard-f5a3446f/llms.txt): $0.05/call via x402. Performs a pre-payment policy check (preflight guard) to determine whether an x402 spend is allowed before initiating a payment
- [x402 Trust Layer Buy Advisor](https://www.zero.xyz/c/x402-trust-layer-buy-advisor-d9f763ab/llms.txt): $0.08/call via x402. Evaluates an API purchase intent against policy limits and returns ranked quotes with a recommended provider, cost, and action for x402-paid API calls
- [x402 Trust Layer – Attestation Verify](https://www.zero.xyz/c/x402-trust-layer-attestation-verify-5044df23/llms.txt): $0.02/call via x402. Verifies an attestation record, returning whether the attested action or identity is allowed along with the attestation ID.
- [x402 Trust Layer Proxy Preflight Guard](https://www.zero.xyz/c/x402-trust-layer-proxy-preflight-guard-706a8b4b/llms.txt): $0.08/call via x402. Performs a preflight safety and risk check on a downstream x402-gated endpoint before committing payment, returning a security grade, risk score, and payment requirements.
- [x402trustlayer.xyz Merchant Trust Score](https://www.zero.xyz/c/x402trustlayer-xyz-7abe9967/llms.txt): $0.06/call via x402. Returns a trust score and risk assessment for a given merchant to help evaluate their reliability.
- [x402 Trust Layer Receipt Auditor](https://www.zero.xyz/c/x402-trust-layer-receipt-auditor-9af678b5/llms.txt): $0.05/call via x402. Verifies and audits x402 payment receipts to confirm whether a paid HTTP request was allowed and settled correctly
- [x402 Trust Layer – Attestation Registry](https://www.zero.xyz/c/x402-trust-layer-attestation-registry-013a569d/llms.txt): $0.02/call via x402. Retrieves attestation registry entries from the x402 trust infrastructure, returning records and policy metadata for trust validation.
- [x402trustlayer.xyz Mandate Verify](https://www.zero.xyz/c/x402trustlayer-xyz-d2540c37/llms.txt): $0.02/call via x402. Verifies the status of a payment mandate across supported blockchain chains, returning validity, scope, violations, and confidence score.
- [x402trustlayer.xyz Quality Escrow Settlement](https://www.zero.xyz/c/x402trustlayer-xyz-quality-escrow-settlement-b53a6724/llms.txt): $0.1/call via x402. Settles a quality escrow payment for a verified API access interaction, releasing or withholding funds based on quality score evaluation.
- [x402 Trust Layer Payment Intent Compiler](https://www.zero.xyz/c/x402-trust-layer-payment-intent-compiler-69acdf11/llms.txt): $0.15/call via x402. Compiles a multi-step downstream execution plan for x402 trust infrastructure APIs, estimating total USDC cost and ordering API calls within a specified budget.
- [x402 Trust Layer Agent Verify](https://www.zero.xyz/c/x402-trust-layer-agent-verify-35030401/llms.txt): $0.04/call via x402. Verifies whether an agent action is permitted and trusted within the x402 trust infrastructure after micropayment settlement
- [x402 Trust Layer Buyer Gate](https://www.zero.xyz/c/x402-trust-layer-buyer-gate-6ece88dc/llms.txt): $0.03/call via x402. Validates whether a buyer is authorized to proceed through the certified seller gate before initiating an x402 payment
- [x402 Trust Layer MPP Session Manager](https://www.zero.xyz/c/x402-trust-layer-mpp-session-manager-b0d85c75/llms.txt): $0.03/call via x402. Closes and settles a multi-payment protocol (MPP) session, returning settlement metadata and facilitator instructions for aggregate USDC on-chain settlement.
- [x402 Trust Layer - Transaction Auth](https://www.zero.xyz/c/x402-trust-layer-transaction-auth-b3fb7456/llms.txt): $0.05/call via x402. Authorizes and validates HTTP transactions through the x402 trust network after USDC payment settlement.
- [x402trustlayer.xyz Refund Arbiter](https://www.zero.xyz/c/x402trustlayer-xyz-7650f59b/llms.txt): $0.08/call via x402. Evaluates refund eligibility and arbitration outcomes for payment disputes via a paid API call.
- [x402 Trust Layer A2A Execute](https://www.zero.xyz/c/x402-trust-layer-a2a-execute-81315017/llms.txt): $0.1/call via x402. Runs an agent-to-agent (A2A) trust preflight check, dispatching guard, trust score, and seller validation before allowing an API transaction to proceed.
- [x402 Trust Layer Spend Governor Check](https://www.zero.xyz/c/x402-trust-layer-spend-governor-check-d0c1cff9/llms.txt): $0.03/call via x402. Checks whether a spending action is allowed under the active x402 spend governance policy after micropayment settlement
- [x402 Trust Layer — Pre-x402 Alchemy Guard](https://www.zero.xyz/c/x402-trust-layer-pre-x402-alchemy-guard-f6d0dff8/llms.txt): $0.05/call via x402. Pre-flight guard check that validates whether a GET, HEAD, or DELETE HTTP request is allowed under x402 trust infrastructure before payment settlement proceeds.
- [x402 Trust Layer - Merchant Trust Certify](https://www.zero.xyz/c/x402-trust-layer-merchant-trust-certify-878a5d57/llms.txt): $0.15/call via x402. Certifies a merchant/API host against trust policy requirements, returning a certification badge and enforced policy thresholds for agent access.
- [x402 Trust Layer MPP Session Plan](https://www.zero.xyz/c/x402-trust-layer-mpp-session-plan-82d7dfc8/llms.txt): $0.02/call via x402. Plans and closes a multi-payment protocol (MPP) session, returning settlement metadata, facilitator info, and a recommendation for aggregate USDC settlement on-chain.
- [x402 Trust Layer – Mandate Diff](https://www.zero.xyz/c/x402-trust-layer-mandate-diff-fe7f53a9/llms.txt): $0.04/call via x402. Compares a proposed HTTP request against an active mandate to determine if it is within scope, valid, and allowed to proceed to x402 payment.
- [x402 Trust Layer — Pre-x402 Guard Check](https://www.zero.xyz/c/x402-trust-layer-pre-x402-guard-check-1b839d57/llms.txt): $0.05/call via x402. Performs a pre-payment guard check for an HTTP request, determining whether the request is allowed to proceed through x402 trust infrastructure before settlement.
- [x402trustlayer.xyz Quality Monitor Probe](https://www.zero.xyz/c/x402trustlayer-xyz-9396a5c9/llms.txt): $0.03/call via x402. Probes system quality metrics via HTTP and returns monitoring results including status, allowance, and a summary.
- [x402 Trust Layer – MCP Tools Call](https://www.zero.xyz/c/x402-trust-layer-mcp-tools-call-13b84703/llms.txt): $0.02/call via x402. Executes a paid x402 trust infrastructure API call (guard, escrow, mandate, compliance, disputes, or orchestration) via MCP tools endpoint with USDC micropayment settlement.
- [x402 Trust Layer – Semantic Quality Escrow Settler](https://www.zero.xyz/c/x402-trust-layer-semantic-quality-escrow-settler-ef735343/llms.txt): $0.12/call via x402. Evaluates semantic and schema quality scores for an API interaction and decides whether to release or hold an escrowed payment to the merchant.
- [x402 Trust Layer — Compliance Ledger](https://www.zero.xyz/c/x402-trust-layer-compliance-ledger-eb7001d1/llms.txt): $0.12/call via x402. Records and queries compliance ledger entries for x402 trust infrastructure transactions, returning allow/deny status and a compliance summary.
- [x402 Trust Layer – Metered Escrow Open](https://www.zero.xyz/c/x402-trust-layer-metered-escrow-open-2361f8bb/llms.txt): $0.05/call via x402. Opens a metered semantic escrow session for a paid HTTP request via the x402 trust infrastructure
- [x402 Trust Layer Pipeline Execute](https://www.zero.xyz/c/x402-trust-layer-pipeline-execute-b1966e5d/llms.txt): $0.25/call via x402. Executes a paid pipeline request through the x402 trust infrastructure, returning an authorization decision and summary after USDC settlement.
- [x402 Trust Layer - Dispute Resolution](https://www.zero.xyz/c/x402-trust-layer-dispute-resolution-24252e98/llms.txt): $0.1/call via x402. Resolves disputes submitted to the x402 trust infrastructure's dispute resolution endpoint after payment settlement.
- [x402 Trust Layer Evidence Locker Export](https://www.zero.xyz/c/x402-trust-layer-evidence-locker-export-09841a86/llms.txt): $0.1/call via x402. Exports evidence records from the x402 trust infrastructure's evidence locker after payment settlement.
- [x402 Trust Layer – Guard Payload Sandbox](https://www.zero.xyz/c/x402-trust-layer-guard-payload-sandbox-19f45eb9/llms.txt): $0.04/call via x402. Sandboxes and validates an HTTP payload guard request, returning whether the request type and method combination is allowed under x402 trust rules.
- [x402 Trust Layer - Metered Escrow Close](https://www.zero.xyz/c/x402-trust-layer-metered-escrow-close-7dce7304/llms.txt): $0.05/call via x402. Closes a metered escrow session for API access after x402 payment settlement, returning an authorization result and summary.
- [x402 Trust Layer Facilitator Failover](https://www.zero.xyz/c/x402-trust-layer-facilitator-failover-dbe27142/llms.txt): $0.05/call via x402. Handles failover routing for x402 trust infrastructure, returning an allowance decision and summary after payment settlement.
- [x402 Trust Layer Risk Gate Scanner](https://www.zero.xyz/c/x402-trust-layer-risk-gate-scanner-d9ce46e1/llms.txt): $0.08/call via x402. Scans an HTTP request through a risk gate to determine if it is allowed, returning a compliance decision after x402 micropayment settlement.
- [x402 Trust Layer – Fraud Scan](https://www.zero.xyz/c/x402-trust-layer-fraud-scan-a25b49aa/llms.txt): $0.1/call via x402. Scans a protocol request for fraud risk and returns an allow/deny decision with a summary explanation.
- [x402 Trust Layer API Router](https://www.zero.xyz/c/x402-trust-layer-api-router-89b01282/llms.txt): $0.02/call via x402. Routes HTTP requests through x402 trust infrastructure, enforcing guard, compliance, and mandate checks with USDC micropayment settlement.
- [x402 Trust Layer – Trust Score v2](https://www.zero.xyz/c/x402-trust-layer-trust-score-v2-e054b2ce/llms.txt): $0.08/call via x402. Computes a trust score for an HTTP transaction, returning a boolean allowance decision and a human-readable summary after x402 micropayment settlement.
- [x402 Trust Layer - Compliance Assessment](https://www.zero.xyz/c/x402-trust-layer-compliance-assessment-470d36f7/llms.txt): $0.1/call via x402. Assesses compliance status of a transaction, mandate, or entity within the x402 trust protocol infrastructure
- [x402 Trust Layer – Insurance Attestation](https://www.zero.xyz/c/x402-trust-layer-insurance-attestation-4409d13d/llms.txt): $0.06/call via x402. Attests insurance coverage or trust status for a network participant via the x402 trust infrastructure after micropayment settlement.
- [x402 Trust Layer - Mandate Compile](https://www.zero.xyz/c/x402-trust-layer-mandate-compile-c702c2bc/llms.txt): $0.08/call via x402. Compiles and validates HTTP mandate configurations (GET, HEAD, DELETE methods) through the x402 trust infrastructure, returning an authorization summary after payment settlement.
- [x402 Trust Layer Credit Score](https://www.zero.xyz/c/x402-trust-layer-protocol-credit-score-df09f4f1/llms.txt): $0.06/call via x402. Computes a credit/trust score for an entity via the x402 paid trust infrastructure protocol
- [x402 Trust Layer Research Brief](https://www.zero.xyz/c/x402-trust-layer-research-brief-84ad62e6/llms.txt): $0.2/call via x402. Returns a paid research brief summarizing trust, compliance, and mandate status for a given HTTP request context via x402 micropayment settlement.
- [x402 Trust Layer – Protocol Passport Issuance](https://www.zero.xyz/c/x402-trust-layer-protocol-passport-issuance-170314b6/llms.txt): $0.06/call via x402. Issues a protocol passport credential after x402 payment settlement, confirming identity or access authorization within the x402 trust infrastructure.
- [x402 Trust Layer Protocol Oracle Consensus](https://www.zero.xyz/c/x402-trust-layer-protocol-oracle-consensus-65dbec3b/llms.txt): $0.12/call via x402. Submits an HTTP request to a paid oracle consensus endpoint that validates or adjudicates trust-layer decisions (e.g. allowed/denied) via x402 micropayment settlement.
- [x402 Trust Layer – Protocol Reasoning Disclose](https://www.zero.xyz/c/x402-trust-layer-protocol-reasoning-disclose-a5cc0bce/llms.txt): $0.04/call via x402. Performs a paid protocol reasoning disclosure check, returning whether an action is allowed along with a natural-language summary of the reasoning.
- [x402 Trust Layer – Semantic Escrow Metered Charge](https://www.zero.xyz/c/x402-trust-layer-semantic-escrow-metered-charge-435f1c50/llms.txt): $0.01/call via x402. Processes a metered micropayment charge via x402 settlement for semantic escrow-gated API access, returning an authorization decision after on-chain payment.
- [x402 Trust Layer Pipeline (trust-v2)](https://www.zero.xyz/c/x402-trust-layer-pipeline-trust-v2-3cc22be6/llms.txt): $0.35/call via x402. Executes a paid x402 trust infrastructure pipeline call covering guard, semantic escrow, mandate diff, certified seller network, KYM, compliance, disputes, and orchestration.
- [x402 Trust Layer - Protocol Passport Verify](https://www.zero.xyz/c/x402-trust-layer-passport-verify-0ddaaa53/llms.txt): $0.02/call via x402. Verifies a protocol passport via the x402 trust infrastructure, returning an allow/deny decision with a summary after on-chain payment settlement.
- [x402trustlayer.xyz Identity Gate Check](https://www.zero.xyz/c/x402trustlayer-xyz-eb54a5ba/llms.txt): $0.05/call via x402. Verifies whether an identity is permitted access via a paid trust-layer gate check, returning an allow/deny decision with a summary.
- [x402 Trust Layer Budget Allocator](https://www.zero.xyz/c/x402-trust-layer-budget-allocator-194381df/llms.txt): $0.03/call via x402. Runs a budget allocation operation within the x402 trust infrastructure, returning an allowed/denied decision with a summary after payment settlement.
- [x402 Trust Layer - Protocol Execution Issue](https://www.zero.xyz/c/x402-trust-layer-protocol-execution-issue-5761d717/llms.txt): $0.05/call via x402. Issues and executes a protocol action through the x402 trust infrastructure, returning an authorization decision and summary after payment settlement.
- [x402 Trust Layer - Replay Verification](https://www.zero.xyz/c/x402-trust-layer-replay-verification-10eb25cf/llms.txt): $0.02/call via x402. Verifies whether an HTTP request has already been replayed or settled within the x402 trust protocol, returning an allow/deny decision with a summary.
- [x402 Trust Layer Full-Trust Pipeline](https://www.zero.xyz/c/x402-trust-layer-full-trust-pipeline-754715d4/llms.txt): $0.45/call via x402. Runs a full-trust pipeline combining guard, semantic escrow, mandate diff, compliance, and orchestration checks for x402 protocol transactions
- [x402trustlayer.xyz Agent Escrow Payment](https://www.zero.xyz/c/x402trustlayer-xyz-ce14db35/llms.txt): $0.12/call via x402. Handles escrow-backed payments for agent interactions across supported blockchain chains
- [x402 Trust Layer – Protocol Replay Bind](https://www.zero.xyz/c/x402-trust-layer-protocol-replay-bind-fbe55c35/llms.txt): $0.02/call via x402. Binds a replayed HTTP protocol request through x402 trust infrastructure, returning an authorization decision after payment settlement.
- [x402 Trust Layer - Bond Slash](https://www.zero.xyz/c/x402-trust-layer-bond-slash-7ee4

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