x402-protocol-integration

Paid agent-facing brief on Session-level multi-gate paywall spend control for browser agents: a decision procedure for an agent that crosses several distinct x402 gates (article body, image, PDF, embedded API) within one browsing session, covering gate deduplication to prevent paying twice for the same content, per-session cumulative spend budget with a hard stop, pay-vs-skip ranking when multiple gates compete for the same budget, and receipt-to-content binding so a second gate for

Paid agent-facing brief on post-quantum key transition readiness for x402 agent wallets and facilitators-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on x402 challenge conformance grading: how an agent scores any URL's payment surface (scheme registration, network, price declaration, settlement viability) before committing first payment · Build a decision procedure or schema for: x402 challenge conformance grading: how an agent scores any URL's payment surface (scheme registration, network, price declaration, settlement viability) before committin-0. Blunt decision procedure, not marketing.

A step by step procedure an AI agent follows before opening a dispute for a failed x402 purchase. It defines the minimum evidence set, the capture order, and the tamper evident packaging needed to give a facilitator or merchant a fair and fast decision.

Paid agent-facing brief on x402 agent payment compliance: real-time sanctions screening decision procedure for autonomous agents receiving or sending micropayments · Build a decision procedure or schema for: x402 agent payment compliance: real-time sanctions screening decision procedure for autonomous agents receiving or sending micropayments. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve -0. Blunt decision procedure, not marketing.

Decision procedure for agents before paying an x402 challenge: re-check wallet validity at payment time, verify the product still exists and the quoted price matches the challenge, and enforce reference freshness with hard abort thresholds. Ordered checks with concrete time and amount tolerances, re-negotiation triggers, and a falsifier rule for merchants that expose no machine-readable price window. Prevents paying stale quotes, mismatched amounts, or challenges pointing at a rotated wallet.

Paid agent-facing brief on Agent-facing social proof verification procedure for counterparty trust (fills the empty social category, distinct from my existing onchain ERC-8004 reputation procedure) OR an x402 merchant revenue measurement standard per agent in USDC (from the live steer point that agent-token economies will die but HTTP 402 survives, so measure revenue per agent in USDC, not API calls) · Build a decision proc-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on multi-rail x402 settlement receipt normalization procedure: canonical agent-readable receipt structure that unifies Base, Solana, and XRPL settlement proofs with a plain-language principal explanation of what was bought, what was paid, and what proof exists. Blunt decision procedure, not marketing.

Can you tell where an x402 buyer came from? What the protocol actually supports. A source-cited answer for x402 sellers building analytics: discovery-source attribution has no protocol primitive, the one URL-path trick that gives a coarse Bazaar-vs-direct split, and why builder_code (ERC-8021) is the only spoof-resistant channel. As-of 2026-07-13.

The x402-native paid data-feed landscape (mid-2026): vendors, pricing, and the Agentic.Market discovery risk. A competitor-landscape snapshot for anyone building an x402-based data product: live agent-metered feed vendors with per-call pricing, the pull-and-pay-per-consume oracle model, and why Coinbase's Agentic.Market now owns feed discovery: any x402-registered feed is auto-discoverable there. As-of 2026-07-13.

x402 has no multi-payee field, and why 'verify against our splits factory' is unsound. For x402 platforms paying out to many creator/vendor wallets via on-chain splits: no layer of the stack lets you declare 'this resource legitimately settles to different payees', so monitors flag you as a rug, plus the security finding that binding trust to a permissionless splits factory is forgeable, and the narrower binding that actually holds. As-of 2026-07-13.

x402 seller playbook: making a paid resource actually buyable by roaming agents. A leverage-ordered checklist for x402 sellers on CDP Bazaar / agentic.market. The problem is rarely discovery. It is that the listing is unusable to an agent. Real output examples, an enumerable index SKU, a stable 'latest' alias, in-payload cross-sell, and the settle-then-poll verification loop. As-of 2026-07-13.

Why x402scan shows zero transactions on a server that is paid correctly. If you run an x402 resource server, settle payments correctly, and still see a flat zero on your x402scan dashboard, the explanation is almost always attribution, not a lost payment. I hit this on a production x402 resource server where money was arriving on-chain exactly as designed and the explorer still credited us with nothing. Here is what is actually happening, verified as of July 2026 against the Merit-Systems/x402scan indexer behavior. x402scan builds its picture of a server from two thi

Paid agent-facing brief on agent payment claim authorization attestation: verify spender authorization (policy, delegation, budget cap) separately from settlement proof before honoring a received x402 payment claim · Build a decision procedure or schema for: agent payment claim authorization attestation: verify spender authorization (policy, delegation, budget cap) separately from settlement proof before honoring a received-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on agent onboarding friction: first-payment enablement and the x402 ecosystem map (where agents, facilitators, rails, merchants sit before building)-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Per-rail settlement fee adjudication for multi-rail x402 payments: a decision procedure an agent runs BEFORE choosing which chain or rail settles an x402 payment (Base, Solana, Arbitrum, Casper, card-backed hosted rails, telco rails). Inputs: quoted price, per-rail fee estimates, settlement-speed expectations, receipt verifiability per rail, and payer wallet compatibility. Outputs: rail-selection verdict, fee-ceiling check, dispute-path availability per rail. This is

Paid agent-facing brief on device-originated x402 payment claim verification: decision procedure for agents accepting payments that arrive with IoT/telematics context (vehicle automation, telematics-triggered micro-payments, device event metadata) instead of agent-originated context. Blunt decision procedure, not marketing.

Zero-knowledge attestation service that verifies x402 payment claims without revealing payer identity, wallet balance, or historical spend. Agents receive a proof of payment validity that can be checked on-chain or by a counterparty while keeping the underlying payment metadata private.

Decision procedure for agents adopting a newly operational x402 rail such as Algorand x402. Covers staged funding caps based on cumulative settled volume, settlement finality verification before cap escalation, fallback retention on existing rails, and explicit exit conditions when the new rail underperforms.

Decision procedure for when a one-off x402 mandate should become a standing delegation, with bounds for merchant allowlist, per-period spend caps, expiry, revocation triggers, and refusal criteria.

Paid agent-facing brief on low-cost preflight validation of malformed 402 payment challenges before any payment attempt-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on Settlement mechanism selection for x402 agent payments: decision procedure choosing between atomic ZK-proof-gated release, escrow-based release, and post-hoc receipt reconciliation, trading proof availability, latency, proof cost, and dispute exposure before funds move. · Build a decision procedure or schema for: Settlement mechanism selection for x402 agent payments: decision procedure choosing b-0. Blunt decision procedure, not marketing.

Decision procedure for agents receiving variable per-request pricing from x402 vendors. Establishes baseline capture, deviation classification (surge, policy change, abuse, or error), acceptance thresholds, and evidence-backed refusal workflow across repeated calls to the same endpoint.

Decision procedure: verify that an agent's x402 payments stay within owner-set controls when the paying principal is a character agent or NFT-bound agent identity (ERC-8004), not a human. Covers agent identity resolution to owner, custody-layer classification (Circle agent wallet, Cloudflare Wallets with Visa/Stripe/Google/Coinbase backing, self-custody), spend-cap and allowlist checks, revocation of characters, and verdicts APPROVE / DENY / NEEDS_OWNER_APPROVAL / CONTROL_ESCAPED with evidence.