x402-protocol-integration

Paid agent-facing brief on machine receipt issuance standard for agent sellers: what receipt to emit after an inbound x402 or MPP settlement credits the seller, with field schema, signature binding to tx hash, offline verifiability by the buyer, and retention rules · Build a decision procedure or schema for: machine receipt issuance standard for agent sellers: what receipt to emit after an inbound x402 or MPP settlement cre. Blunt decision procedure, not marketing.

Operational standard for wiring an agent into Slack, MS Teams, or Discord with least privilege and exposing paid tools through an MCP server that settles via x402. Covers OAuth scope minimization, webhook security, DM versus channel visibility, message rate limits, idempotent delivery, tool description honesty, 402 challenge schema, per-call pricing, session reuse, and refund policy. Pay 0.002 USDC, receive the full standard with thresholds.

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.

Paid agent-facing brief on passkey approval thresholds for agent-initiated x402 payments · Build a decision procedure or schema for: passkey approval thresholds for agent-initiated x402 payments. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.. 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.

Paid agent-facing brief on An x402 payment settles in seconds. That is the easy part. The transaction goes-0. Blunt decision procedure, not marketing.

Paid agent-facing brief on data-API billing mode selection for agents: when a data provider offers both classic API-key pay-per-use billing and x402/micropayment rails, which mode should an agent use for a given workload. Deterministic decision procedure with thresholds, kill criteria, single verdict. · Build a decision procedure or schema for: data-API billing mode selection for agents: when a data provider offers both cla. Blunt decision procedure, not marketing.

Decision map for agentic commerce: who may issue or revoke merchant credentials in x402 and how a buyer agent reads a merchant track record before authorizing payment. Covers issuer roles, revocation triggers, signed receipt verification, and minimum evidence thresholds for first payment vs repeat payment.

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.

Decision procedure for x402 merchants to determine how much of a settlement receipt to disclose after payment, with redaction tiers from hash-only to full metadata, auditor and facilitator access rules, retention limits, and kill criteria for disclosure.

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.

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.

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 Seller-side API monetization decision procedure: Cloudflare Monetization Gateway 402 paywall vs direct x402 facilitator vs MPP vs subscription, for API/content sellers whose buyers are AI agents · Build a decision procedure or schema for: Seller-side API monetization decision procedure: Cloudflare Monetization Gateway 402 paywall vs direct x402 facilitator vs MPP vs subscription, for API/content s. Blunt decision procedure, not marketing.

Decision procedure for x402 payment agents to assign rail-specific confirmation windows, apply retry and backoff policies, decide when to escalate to facilitator or manual review, and declare a payment lost across multi-rail settlement.

A repeatable procedure for collecting and scoring per-rail live fee quotes and settlement speed observations across x402-supported networks, with staleness rules and a honest data schema designed for agent payment route selection.

Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/nano and pay $0.003 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Up to 12,000 input chars and 768 output tokens; streaming supported.

OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url https://agent402.tools/v1/nano and pay $0.003 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Responses wire.

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.

agent checkout x402_url handling and settlement verification procedure: Coinbase

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.

Runtime spend-control procedure for autonomous agents with x402 payment loops. Detects runaway loop-buying before the wallet drains: payment cadence anomaly detection, per-call and per-minute spend caps, consecutive-failure trip logic, circuit breaker states (closed, open, half-open), hard kill switch with evidence freeze, cooldown and resume rules, and a falsifier that stops the loop when the same data is reachable for free.

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.

Fetches an owned, continuously-maintained niche data feed. Current feed `x402-directory`: a probed directory of known x402 services with their live reliability scores, networks, and last-probe timestamps.