x402 V2 foundation · Base + USDC · Settlement remains configuration-gated

X402 Facilitator

Developer Documentation

Autonomous commerce documentation

Build autonomous commerce with x402.

Integrate public no-login payments, merchant APIs, AI agents, MCP servers, ModelGlue policy controls, and recoverable settlement.

Open PlaygroundIntegration StudioDashboard
Platform coveragePublic x402AI + MCP commerceRobotic merchantsEnterprise controlsRecovery + receipts
Models at work

Choose a specialist copilot

Each copilot uses the configured Immutifi or local model endpoint with a role-specific operating prompt.

Platform

Operate the complete facilitator platform

Public no-login x402 access

Standard protocol requests can begin without a WordPress account, within configurable public limits.

Merchant dashboard

Manage services, credentials, payments, settlements, receipts, webhooks, recovery, and teams.

Organizations and teams

Create isolated enterprise workspaces with role-based access and multi-user administration.

Sandbox and production environments

Documented, configurable, and available through the facilitator platform or merchant portal.

API keys and service accounts

Documented, configurable, and available through the facilitator platform or merchant portal.

Webhooks and signed receipts

Documented, configurable, and available through the facilitator platform or merchant portal.

Settlement reconciliation

Documented, configurable, and available through the facilitator platform or merchant portal.

Nonce recovery

Documented, configurable, and available through the facilitator platform or merchant portal.

Operational health

Documented, configurable, and available through the facilitator platform or merchant portal.

Ai Commerce

Sell and purchase AI capabilities

AI agent payments

Allow agents to purchase approved services through x402 while preserving policy and receipt context.

MCP server commerce

Expose paid MCP tools and resources through recoverable x402 payment flows.

Inference and model APIs

Documented, configurable, and available through the facilitator platform or merchant portal.

Vision and OCR services

Documented, configurable, and available through the facilitator platform or merchant portal.

Speech and search services

Documented, configurable, and available through the facilitator platform or merchant portal.

ModelGlue policy authorization

Documented, configurable, and available through the facilitator platform or merchant portal.

Multi-model documentation copilots

Documented, configurable, and available through the facilitator platform or merchant portal.

Robotics

Enable machine-to-machine commerce

Robotic merchant identities

Register machine-service operators, fleet gateways, recipients, and service capabilities.

Fleet gateway identities

Documented, configurable, and available through the facilitator platform or merchant portal.

Charging and inspection services

Documented, configurable, and available through the facilitator platform or merchant portal.

Compute and storage services

Documented, configurable, and available through the facilitator platform or merchant portal.

Delivery and maintenance services

Documented, configurable, and available through the facilitator platform or merchant portal.

Metered pricing

Documented, configurable, and available through the facilitator platform or merchant portal.

Signed delivery proofs

Documented, configurable, and available through the facilitator platform or merchant portal.

Enterprise

Govern production organizations

Role-based access

Separate owner, administrator, developer, finance, and viewer responsibilities.

Policy bundles

Documented, configurable, and available through the facilitator platform or merchant portal.

Approval workflows

Documented, configurable, and available through the facilitator platform or merchant portal.

SSO and SCIM readiness

Documented, configurable, and available through the facilitator platform or merchant portal.

Audit and compliance exports

Documented, configurable, and available through the facilitator platform or merchant portal.

Incident center

Documented, configurable, and available through the facilitator platform or merchant portal.

Environment promotion

Documented, configurable, and available through the facilitator platform or merchant portal.

Secrets rotation

Documented, configurable, and available through the facilitator platform or merchant portal.

Developer

Go from discovery to working integration

Interactive playground

Generate and inspect sample payment flows without creating an account.

Integration Studio

Documented, configurable, and available through the facilitator platform or merchant portal.

SDK Builder

Documented, configurable, and available through the facilitator platform or merchant portal.

Request Inspector

Documented, configurable, and available through the facilitator platform or merchant portal.

Webhook Simulator

Documented, configurable, and available through the facilitator platform or merchant portal.

OpenAPI discovery

Documented, configurable, and available through the facilitator platform or merchant portal.

API Health Center

Documented, configurable, and available through the facilitator platform or merchant portal.

Copy-ready examples

Documented, configurable, and available through the facilitator platform or merchant portal.

Architecture

Clear product boundaries

Agent / App / Device
→
ModelGlue
Policy, budgets, approvals
→
x402Facilitator.ai
Verify, settle, recover
→
Merchant Service
Deliver + receipt

Robotic commerce covers identity, payment, metering, and delivery evidence. It does not control navigation, actuators, firmware, sensors, task assignment, or emergency-stop systems.

Quick Start

First public verification

curl -X POST https://x402facilitator.ai/wp-json/x402facilitator/v1/verify \
  -H "Content-Type: application/json" \
  -d @payment.json

The response returns a payment ID and payment-specific access token. Use status or nonce recovery before retrying after an interrupted response.