Practical notes for getting paid by AI.

Canonical guides on x402 payments, paid API calls, settlement, and the operating details behind agent revenue.

API monetization·7 min read

Metering Records for Paid Agent APIs

A practical guide to metering records for paid agent APIs, including request identifiers, payment verification, usage units, settlement bundles, and finance-ready exports.

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Agent commerce·7 min read

Time-Boxed API Access for AI Agents

A practical guide to time-boxed API access for AI agents, including access windows, x402 payment terms, usage limits, settlement bundles, and finance-ready records.

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Payment integrations·7 min read

API Payment Metadata for AI Agents

A practical guide to API payment metadata for AI agents, including the fields that help agents decide when to pay and sellers reconcile USDC API revenue.

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Payment operations·7 min read

Payout Packets for Agent API Revenue

A practical guide to payout packets for agent API revenue, including the records finance teams need before reviewing bundled USDC payments and euro-oriented settlement.

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Agent marketplaces·7 min read

Paid API Service Levels for AI Agents

A practical guide to paid API service levels for AI agents, including payment verification behavior, retry rules, execution outcomes, settlement records, and buyer-facing expectations.

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Developer onboarding·7 min read

X402 Payment Testing for Agent APIs

A practical guide to x402 payment testing for agent APIs, including challenge responses, payment proof verification, retries, settlement bundles, and euro reconciliation records.

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Agent commerce·7 min read

API Payment Terms for AI Agent Buyers

A practical guide to API payment terms for AI agent buyers, covering machine-readable prices, x402 challenges, USDC payments, non-custodial seller controls, euro settlement, and finance-ready records.

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Developer onboarding·7 min read

Paid API Launch Checklist for AI Agents

A practical launch checklist for API sellers preparing paid access for AI agents, including x402 challenges, USDC on Base, non-custodial controls, micropayment bundling, euro settlement, and reconciliation.

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Agent commerce·7 min read

Agent Payment Allowlists for Paid APIs

A practical guide to agent payment allowlists for paid APIs, covering approved buyers, wallet policies, x402 payment requirements, USDC on Base, settlement bundles, and reconciliation.

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AI agent payments·7 min read

Agent Payment Risk Controls for Paid APIs

A practical guide to agent payment risk controls for paid APIs, covering x402 payment checks, USDC acceptance, seller policies, bundled settlement, review queues, and euro reconciliation.

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Agent commerce·7 min read

Checkoutless API Payments for AI Agents

A practical guide to checkoutless API payments for AI agents, covering request-native pricing, x402 challenges, USDC on Base, seller wallet controls, bundled micropayments, euro settlement, and reconciliation records.

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Agent marketplaces·7 min read

Paid API Discovery for AI Agents

A practical guide to making paid APIs discoverable by AI agents, with clear endpoint units, x402 payment requirements, USDC on Base, buyer trust context, and seller reconciliation records.

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Developer onboarding·7 min read

x402 Retry Policies for Paid APIs

A practical guide to x402 retry policies for paid APIs, including quote reuse, proof replay, idempotency, failed execution handling, USDC settlement, and reconciliation.

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Payment operations·7 min read

Payment Audit Trails for AI Agent APIs

A practical guide to payment audit trails for AI agent APIs, including x402 payment requirements, USDC verification, non-custodial seller controls, bundled micropayments, and reconciliation records.

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Developer onboarding·7 min read

X402 Headers for Paid API Endpoints

A practical guide to x402 headers for paid APIs, including payment requirements, retry behavior, proof references, USDC on Base, seller controls, and settlement records.

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Agent commerce·7 min read

X402 vs Payment Links for Agent APIs

A practical comparison of x402 and payment links for paid agent APIs, including automated spending, USDC on Base, non-custodial seller controls, micropayment bundling, euro settlement, and reconciliation.

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Marketplace trust·7 min read

Agent Payment Status Pages for Paid APIs

A practical guide to payment status pages for paid agent APIs, covering x402 uptime, USDC on Base, seller wallet controls, settlement visibility, incidents, and reconciliation context.

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Payment operations·7 min read

Dispute Evidence for Paid Agent API Calls

A practical guide to dispute evidence for paid agent API calls, including payment requirements, proof records, API delivery logs, refunds, settlement references, and finance-ready exports.

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Developer onboarding·7 min read

Quote Expiration for X402 Paid APIs

A practical guide to quote expiration for x402 paid APIs, including validity windows, retries, idempotency, USDC on Base, seller controls, bundled micropayments, euro settlement, and reconciliation.

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Developer onboarding·7 min read

X402 Preflight Checks for Paid APIs

A practical guide to x402 preflight checks for paid APIs, including price discovery, USDC on Base requirements, agent budget controls, seller wallets, bundled micropayments, and reconciliation records.

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European seller operations·7 min read

Payout Schedules for Agent API Revenue

A practical guide to payout schedules for agent API revenue, including cutoff windows, bundled micropayments, seller controls, USDC settlement, euro records, and reconciliation.

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Developer onboarding·7 min read

Agent Payment Policy Files for Paid APIs

A practical guide to agent-readable payment policy files for paid APIs, including pricing rules, x402 requirements, USDC on Base, seller wallet controls, refunds, bundling, and euro reconciliation.

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European seller operations·7 min read

VAT Records for Agent API Payments

A practical guide for European API sellers that need VAT-friendly records around paid AI agent requests, stablecoin settlement, and finance reconciliation.

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European seller operations·7 min read

Accounting Exports for Agent API Revenue

A practical guide to turning paid AI agent API calls into accounting-ready exports with request context, payment proof, settlement batches, and euro-facing reconciliation fields.

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Developer onboarding·5 min read

From OpenAPI Spec to Paid Agent API

A practical guide for turning an existing API into a paid agent-ready surface using clear endpoint descriptions, pricing, x402 payments, and Apiosk settlement.

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