YourAITools

x402 facilitators: what they do, how to choose, and a list

Updated 2026-11-02

Short answer: an x402 facilitator is a service your API calls to verify a buyer’s signed payment and settle it on-chain, so your server doesn’t need its own blockchain connection. It never holds your funds. Pick one that supports the networks and tokens you want to accept, or run your own. Below: how it fits in the payment flow, how to choose, and 18 production facilitators listed in the official x402 docs (Nov 2, 2026).

What a facilitator does

  1. Your API answers an unpaid request with 402 Payment Required and its payment terms.
  2. The client signs a payment that matches one of those terms and retries with it.
  3. Your server checks the payment locally or POSTs it to the facilitator’s /verify endpoint.
  4. If it is valid, your server does the work, then settles via the facilitator’s /settle endpoint (or directly on-chain).
  5. The facilitator submits the transaction, waits for confirmation and returns the result; your server sends the response with the settlement receipt.

Per the docs, the facilitator is optional but recommended: it is not a custodian, and it only executes what the buyer signed. Learn the basics in What is x402?

Which path to choose

  • Testnet or a local quickstart: the public x402.org facilitator, no setup. The docs say it is meant for development and testnets, not production mainnet routes.
  • Managed production: a production facilitator that supports your target network (list below).
  • Full control: run your own facilitator, or self-facilitate inside your server.

Before you pick, check three things on the facilitator’s own page: the networks (and testnets) it supports, the tokens and payment schemes, and whether it needs an account or API key. For reference, of the 435 x402 listings in our directory, 420 accept payment on Base and 157 on Solana.

x402 facilitator list

FacilitatorNetworks and notes (per the x402 docs)
AlgoVoiChain-agnostic, 12 mainnet chains including Algorand, Base, Solana, Stellar, Hedera, Voi and Tempo; hosted or self-hosted.
Built on StellarFree, public facilitator for Stellar.
Celo FacilitatorGasless, for Celo Mainnet and Celo Sepolia; USDC, USD₮ and USA₮ via EIP-3009, plus wARS, wBRL and wCOP via Permit2.
CorbitsMulti-network, multi-token, EVM and Solana.
DexterFree public facilitator for Solana and EVM chains; no fees, no account.
Fireblocks FacilitatorOpen-source and hosted; settles from Fireblocks vaults, keys stay in Fireblocks.
FTP Canton FacilitatorCanton Network mainnet; Canton Coin and CIP-56 tokens.
HPP FacilitatorGasless, public, for HPP Mainnet and Sepolia.
MeridianMulti-chain, developer-focused features.
Mogami FacilitatorFree, for Base; optional self-hosted Docker deployment.
NEAR x402 FacilitatorOpen source; exact USDC payments on NEAR and Base, sponsored gas.
PayAI FacilitatorOur listingMulti-network, all tokens, no API key required.
Polygon FacilitatorPolygon Mainnet and Amoy testnet.
SolvadorBroad mainnet coverage across EVM plus Solana and NEAR; several schemes and extensions.
Sui Facilitator (UIG Studios)Non-custodial, zero-fee, Sui mainnet and testnet, USDC.
T54 XRPL FacilitatorXRP Ledger mainnet and testnet; XRP and RLUSD.
TRDEFI Arc FacilitatorFree, public, for Arc (eip155:5042); exact USDC via EIP-3009.
X Payx402 v2, exact USDC on Base mainnet via EIP-3009; needs a merchant API key.

Listed in alphabetical order; not a ranking and not an endorsement. We have not tested each facilitator. The official page is a selection, not an exhaustive catalog, and it changes: see the full current list on docs.x402.org.

More in our directory

  • x402dir: a directory comparing x402 facilitators by fees, chains and features.
  • AsterPay: a facilitator that converts USDC agent payments to euros paid out over SEPA Instant.
  • All payments listings

Next steps

Sources

New to x402, the HTTP 402 payment standard these APIs use? Read what x402 is and how agents pay per call.

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