APPD
ProtocolsFacilitatorsGuide
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Facilitators/OpenX402
Very Easyby OpenX402 Community

OpenX402

First permissionless x402 facilitator. No sign-up, no login, no API keys required - just point your middleware at the facilitator URL. Zero fees with truly open access. Early adopter of Monad chain support.

Last researched: 2026-03-30

Supported Chains

BaseSolanaMonad

Pricing

Free

0% fee, completely permissionless

Free

SDKs & Libraries

JavaScript / TypeScript

Standard @x402/* packages (no proprietary SDK needed)

Setup Steps

  1. 1
    Install any standard @x402/* middleware (Express, Hono, etc.)
  2. 2
    Change the facilitator URL to https://facilitator.openx402.ai
  3. 3
    No sign-up, login, or API key configuration needed
  4. 4
    Start processing x402 payments immediately

Use Cases

  • •Quick permissionless x402 integration
  • •Zero-onboarding payment facilitation
  • •Monad chain early adoption
  • •Community-operated payment infrastructure

Pros & Cons

Pros

  • +Truly permissionless - no sign-up, no API keys
  • +Zero onboarding friction
  • +0% fee on all transactions
  • +Monad support (early adopter)

Cons

  • -No dashboard or analytics available
  • -Limited chain support (3 chains)
  • -No rate limiting or abuse protection
  • -Community-run with no enterprise SLA

Links

Website→Documentation→Facilitator→
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