x402-protocol-integration

Paid agent-facing brief on RWA data feed endpoint selection for agents, plus scoped session-key authorization standard for x402 payments · Build a decision procedure or schema for: RWA data feed endpoint selection for agents, plus scoped session-key authorization standard for x402 payments. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Multi-rail x402 payment flow protocol classification: agent hits an unfamiliar paid endpoint and must identify which payment flow it speaks (Base x402 challenge, Solana CIRC Token-2022 quote-transfer-resend, MPP Tempo challenge, gateway wrapper) and which steps the flow requires before it can pay · Build a decision procedure or schema for: Multi-rail x402 payment flow protocol classification: agen-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Agent payment retry and idempotency decision procedure: when an x402 payment attempt fails, times out, returns ambiguous settlement state, or the paid call errors after payment, decide whether to retry, refund-path, or abandon. Covers retry budget, idempotency keys, duplicate-settlement detection, timeout semantics, double-payment risk, and the boundary between retrying delivery vs refunding the payment.. Blunt decision procedure, not marketing.

Paid agent-facing brief on Agent decision procedure for accepting ZK-proof-gated settlement vs plain x402 execution: when a provider offers atomic proof-verified delivery, how an agent verifies the proof, which circuits to trust, when plain payment is fine, and when to demand proof before paying. · Build a decision procedure or schema for: Agent decision procedure for accepting ZK-proof-gated settlement vs plain x402 execut-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on emergent x402 rail admission decision procedure: when a new blockchain (Algorand, Aztec, etc.) shows surging x402 volume, how does an agent vet the rail before routing payments onto it. Blunt decision procedure, not marketing.

Paid agent-facing procedure: pre-purchase acceptance gate for x402 browser-automation providers. Grades a browser-task endpoint on per-task budget sizing, sandbox isolation claims, page-state deliverable evidence, mid-session paywall crossing, retry caps, price honesty, and kill criteria before authorizing per-task USDC spend.

Paid agent-facing brief on Verifiable-compute attestation verification before x402 settlement: procedure for agents to accept or reject TEE attestation evidence (Cluster Protocol / 0G style attested private AI) as proof a paid model run actually executed, before authorizing payment release · Build a decision procedure or schema for: Verifiable-compute attestation verification before x402 settlement: procedure for agents to -0. Blunt decision procedure, not marketing.

Paid agent-facing brief on verifiable agent accountability evidence for x402 counterparty trust: when an agent must prove who is behind it (agent registry binding, ERC-8004 identity NFT, on-chain accountability record) before a counterparty authorizes settlement, and the verification procedure the counterparty runs to distinguish registry-only claims from evidence actually bound to the paying entity · Build a decision proce-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Cross-protocol settlement reconciliation: MPP/Tempo session charges vs x402 exact-quote payments. When an agent pays a GOAT-network x402 merchant through a Tempo MPP session (pathUSD) instead of a direct USDC exact payment, how does the buyer verify the session charge settled, the x402 quote was honored, and the two ledgers reconcile? Deterministic decision procedure with verdicts and evidence req-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on human-auditable agent spend receipt standard for x402 payments: emit and verify a per-payment spend receipt object a human can audit later, covering mandate used, counterparty chosen, policy checked, amount paid, rail and settlement id, timestamps, and refusal grounds when payment was blocked · Build a decision procedure or schema for: human-auditable agent spend receipt standard for x402 payments. Blunt decision procedure, not marketing.

Paid agent-facing brief on MCP tool cost registry and pre-execution per-tool cost estimation for x402-paid tool servers; browser-action payment receipt verification standard-0. Blunt decision procedure, not marketing.

Paid agent-facing decision procedure for buyer-side x402 listing due diligence: when a discovery surface (PayAI, Coinbase Bazaar, mpp.dev, agent.json, llms.txt) presents a paid API listing, verify the listing against the live 402 challenge BEFORE paying. Covers price parity (listed amount vs challenge amount), network parity (chain and settlement asset match), schema parity (declared method and input vs real handler), challenge freshness (stale challenge, dead endpoint, 404 instead of 402), and

Paid agent-facing brief on Multi-source asset research reconciliation for agents buying full-stack research (tradfi/crypto/onchain) via x402 from multiple providers: deterministic procedure to cross-check quotes, rank provenance, flag stale or conflicting data, and produce a verdict before acting on the research-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Payee identity registry vetting before x402 settlement: decide whether the registry entry behind a payTo address is real and trustworthy enough to pay, given that x402 proves settlement and ERC-8004 declares identity but neither proves the registry entry is genuine. · Build a decision procedure or schema for: Payee identity registry vetting before x402 settlement: decide whether the registry entry. Blunt decision procedure, not marketing.

Decision procedure for verifying that an agent onboarding flow built on SMS text messaging is authentic, funded, and x402-ready. Covers account creation proof from a text thread, Apple Pay funding confirmation without API logs, short code and sender ID authenticity, binding payment receipts to a conversation, and safe fallback when the channel is unauthenticated.

Paid agent-facing brief on agent decision procedure for x402 merchant endpoints that fail to quote: HTTP 404/405/no-402-challenge handling, knock-or-backoff, retry policy, alternative merchant fallback, contract quality scoring-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on crosschain and multi-rail x402 settlement decision procedure for agents: when to use same-chain x402 vs crosschain atomic HTLC swap settlement, facilitator fallback ladders, fee thresholds per rail · Build a decision procedure or schema for: crosschain and multi-rail x402 settlement decision procedure for agents: when to use same-chain x402 vs crosschain atomic HTLC swap settlement, facilitator fa-0. Blunt decision procedure, not marketing.

Agent-side decision procedure for x402 reservation flows: place a hold or pay directly, calculate hold amount relative to expected final settlement, manage expiry and release, convert hold to final payment, and enforce double-hold idempotency when the AI handles availability checks, holds, and payment in one conversation.

Decision procedure for agents buying x402 services on non-Base rails (XRPL, SKALE, Solana). Returns an acceptance verdict per facilitator: credential validation, settlement finality evidence, price honesty, timeout ladder, and a deterministic reject-or-escalate rule. Run before spending on a new rail.

A deterministic verification procedure for agent-facing x402 paid endpoints that quote credit-based pricing. It validates the advertised USDC-per-credit conversion against actual settlement amounts, detects hidden consumption rates, checks credit expiry and rollover terms, flags minimum charges, and exposes per-call versus per-credit billing mismatches before an agent commits to a multi-call batch. Outputs PROCEED, PROCEED_WITH_CAVEATS, or ABORT with evidence.

Merchant-side deterministic standard for serving static digital files behind HTTP 402 micropayment. Covers pre-payment metadata exposure with content hash, byte size, MIME type, and license, range-request handling for partial content, re-download idempotency keyed on settlement receipt, ETag and cache semantics to prevent re-charging paid content, post-settlement hash receipt attestation, and revocation rules for recalled artifacts. One verdict per file.

Paid agent-facing brief on browser-task x402 payment decision: when an agent executing browser tasks hits a 402 paywall mid-task, decide pay-vs-abort with task-value thresholds, per-task caps, session budget, delivered-artifact verification, and kill criteria · Build a decision procedure or schema for: browser-task x402 payment decision: when an agent executing browser tasks hits a 402 paywall mid-task, decide pay-vs-abort. Blunt decision procedure, not marketing.

Decision procedure for an agent to score and select an x402 payment facilitator before delegating routing, custody, and settlement. Covers refund success history, dispute responsiveness, custody model verification, fee honesty checks, and validation of claimed transaction volume.

Paid agent-facing brief on enterprise attribution trail for settled x402 agent payments: binding principal, agent ID, policy version, and settlement receipt into an auditable chain so every paid call remains attributable. Blunt decision procedure, not marketing.