The x402 Facilitator Landscape in 2026: 21 Options Compared

Every x402 seller needs a facilitator — the third party that runs /verify and /settle against a buyer's signed payment so the seller never has to hold a private key or run an RPC client. The spec doesn't mandate one, which means "just use the facilitator" glosses over a real decision: 21 of them exist right now, with meaningfully different chain support, fee models, and — this is the part most guides skip — whether you can actually reach them without a signup step.

This is a snapshot from Fetchgate's own x402 Services & Facilitator Registry dataset, collected 2026-08-21 and reconciled against facilitators.x402.watch, the x402 GitHub org, and each facilitator's own docs where available. Full source list per entry is in the dataset; here's the shape of it.

#The headline split: 16 open, 4 gated or paid, 1 testnet-only

Of the 21:

• 16 are active — reachable with no signup, no API key, no waitlist. This is most of them, and it's the main reason x402 is usable at all for an indie seller: you can point a Worker at a facilitator URL today and get a working /verify + /settle pair.
• 2 are gated (KAMIYO, AurraCloud) — access requirements aren't publicly documented; you'd need to reach out directly.
• 1 is gated+paid (Thirdweb) — part of a broader paid developer platform, not a standalone free facilitator.
• 1 is testnet-only (the x402.org community facilitator) — free, but scoped to base-sepolia for development, not production settlement.
• 1 is unverified (xpay) — advertised zero-fee with gas-sponsored settlement per its own blog post, but absent from the main aggregator directory at verification time; treat as unconfirmed until you've tested it yourself.

If you're choosing a default today, start from the 16 active ones — they're the ones you can actually wire up this afternoon.

#Chain coverage

Base dominates — unsurprising, since it's Coinbase's own chain and the one most x402 tooling and docs default to. If you need Solana specifically, your real options narrow to a handful: PayAI, Coinbase CDP, Codenut, OpenX402, Daydreams, UltravioletaDAO, Corbits, Dexter, KAMIYO (gated), and AurraCloud (gated) — check the dataset for current status before picking one, since "listed" and "gated" both count toward that total.

#The fee model that actually matters: Coinbase CDP isn't free anymore

The most consequential entry on this list is also the one most tutorials still point to by default. Coinbase CDP's facilitator — facilitator.cdp.coinbase.com — now charges $0.001 per settled payment after the first 1,000 free settlements per month, effective 2026-01-01, with first bills going out 2026-02-01. facilitators.x402.watch lists it as "0% fee," which is technically about markup/percentage, not this flat per-settlement charge — worth reading past the headline number if you're comparing on that aggregator alone.

Coinbase CDP also runs KYT/OFAC screening on every transaction it processes. It's non-custodial — settled USDC lands directly in your own wallet, not a Coinbase-controlled account — but the screening step is a real integration and compliance consideration most "just use CDP" defaults don't mention.

Every other active facilitator in this dataset is listed at 0% fee per the aggregator (worth independently verifying before you commit real volume to one — fee pages change). None of the other 15 open facilitators disclose a KYC/KYT step in the sources checked for this edition.

#Facilitators worth knowing by name

PayAI (facilitator.payai.network) — Base + Solana, no signup, no auth. This is what Fetchgate's own live seller uses in production. No published fee, no documented KYC step, and it's been reliable enough to run a real storefront against.

X402rs (facilitator.x402.rs) — Base + Polygon, 0% fee, and notably ships an open-source Rust reference implementation (x402-rs on GitHub) that other facilitators and sellers build on. If you ever want to self-host rather than depend on a third party, this is the code most likely to be your starting point.

Heurist, Questflow, Daydreams, UltravioletaDAO, Codenut, OpenX402, Mogami, 402104, Xecho, Virtuals Protocol, Corbits, Dexter, Polygon's own facilitator — all active, all listed at 0%, all worth a look depending on which chain you need. None has enough independent documentation in this dataset to say much more than "reachable and free" — which, for picking a facilitator to integration-test against, is often exactly what you need to know first.

The x402.org community facilitator (x402.org/facilitator) — free, base-sepolia only, documented directly in Cloudflare's own Workers x402 example. This is the right facilitator to point at while you're integrating and don't want real money moving yet — see the x402 integration guide for why testing against a testnet facilitator first catches the EIP-712 domain-name mismatch and network-string bugs before they cost you a debugging afternoon on mainnet.

#What "0% fee" doesn't tell you

Every facilitator on this list except Coinbase CDP and Thirdweb is listed at a flat 0% fee — but a fee-model field only captures one axis. Before you route production volume through any of them, this dataset's own honesty notes apply to your own diligence too:

• Uptime and response time aren't in this dataset. A free facilitator that's slow or flaky costs you more in failed settlements than CDP's $0.001/tx would.
• "0% fee" on the aggregator isn't independently re-verified per entry here — fee pages change, and a facilitator can start charging (as CDP did) without every downstream directory catching up immediately.
• Security posture varies more than fee model does. Independent research (USENIX 2026) found every major x402 facilitator tested — Coinbase's included — had at least one security flaw under adversarial testing. A facilitator being free and unauthenticated doesn't mean it's been hardened; it means the friction to start using it is low. Keep your seller's payTo receive-only wherever possible, since that's the one property that limits a compromised facilitator's blast radius regardless of which one you pick.

#Picking one

If you're integrating today and don't already have a reason to pick otherwise: start on the x402.org community facilitator against base-sepolia while you're still finding integration bugs, then move to PayAI or Coinbase CDP for mainnet depending on whether you want zero published fees (PayAI, unaudited beyond this dataset) or Coinbase's brand recognition and KYT screening at $0.001/settlement past 1,000/month (CDP). If Solana is a hard requirement, PayAI covers both chains from one facilitator, which simplifies a seller that needs to support both.

This is a 2026-08-21 snapshot of 21 facilitators — chains, on-chain addresses where public, fee models, KYC/custody notes, and every source URL used to verify each entry. The x402 Services & Facilitator Registry ($15) has the full machine-readable dataset (facilitators.json + services.json, 118 payable services alongside the facilitators), a JSON Schema, and the same data as sortable Markdown tables — see a free sample of 5 facilitators + 10 services first. If you're building the buyer or seller side yourself rather than picking a service to integrate against, the x402 Quickstart Kit ($7) has working reference code for both, in TypeScript and Python.