AsterPay vs Coinbase CDP — honest comparison

Updated 3 May 2026 · 6 minute read · By Petteri Lehtola, Co-founder

Short answer Coinbase Developer Platform (CDP) is the canonical x402 facilitator. AsterPay is the EU-native facilitator that adds EUR settlement, KYA trust scoring and dual x402+MPP support on top. The two are not in head-to-head competition: CDP runs the reference facilitator on Base for USDC-in-USDC-out flows; AsterPay runs an EU-licensed facilitator for USDC-in-EUR-out flows. Most production stacks will use one or both depending on the merchant geography and settlement currency.

What each one is

Coinbase Developer Platform (CDP), launched by Coinbase in 2024, is a developer infrastructure platform that includes a wallet API, RPC nodes, smart-contract tooling and the canonical x402 facilitator. CDP's x402 facilitator is the reference implementation: it verifies payment proofs, executes settlements on Base, and is the default endpoint that every x402-aware agent SDK ships with. CDP also operates Coinbase's broader exchange and custody businesses under US state and federal regulation.

AsterPay, operated by AELIRA LTD (Cyprus), is an EU-native x402 facilitator that adds EUR settlement via SEPA Instant, KYA trust scoring on the agent wallet, dual x402+MPP support on every paid endpoint, and multi-chain ingress (Base, Polygon, Arbitrum, Optimism, Ethereum, Solana). AsterPay is listed on the official x402 ecosystem page maintained by Coinbase and is operationally complementary to CDP's facilitator.

Side-by-side comparison

Capability	Coinbase CDP facilitator	AsterPay facilitator
Role	Canonical x402 reference facilitator	EU-native EUR settlement facilitator
Settlement currency out	USDC (stays on-chain)	EUR via SEPA Instant (and USDC if merchant prefers)
Regulatory home	US (state MTLs, federal)	EU (MiCA-aligned via licensed CASP partners)
Chains	Base (native)	Base, Polygon, Arbitrum, Optimism, Ethereum, Solana
x402 support	Native (reference)	Native
MPP support	No	Native, on every endpoint alongside x402
KYA trust scoring	No	Yes, 0-100, ERC-8004
Sanctions screening on agent wallet	No	Yes, OFAC + EU + UN lists
Self-serve KYB	Coinbase exchange flow	Sumsub, <30 min
Pricing	Coinbase facilitator fee + on-chain gas	50 bps + partner spread (typically 80-130 bps all-in)
Token / governance	None at facilitator level	None

When Coinbase CDP is the right call

You are a US-based developer or your treasury is USD-denominated
You are happy receiving USDC and managing the off-ramp yourself (or via Coinbase's exchange)
You only need Base as the on-chain ingress and don't need multi-chain support
You want the reference facilitator with the deepest agent-SDK distribution
You don't need agent-side trust filtering at the facilitator layer (you'll do it elsewhere or accept the residual risk)

When AsterPay is the right call

You are an EU-incorporated merchant and you want EUR in your bank account, not USDC in a wallet
You want the regulatory perimeter to be EU-resident under MiCA, not US-resident
You want trust-screening on the agent wallet before settlement
You want both x402 and MPP supported on the same response
Your agents may pay from any of Base, Polygon, Arbitrum, Optimism, Ethereum or Solana
You want pricing that is publicly listed without a sales call

The two are not competitive at the protocol layer

x402 is an open protocol. Anyone can run a facilitator. Coinbase CDP's role as the reference facilitator is similar to AWS's role for S3-compatible object storage: canonical, broadly used, and not a barrier to alternative implementations that serve different geographies or feature sets. AsterPay is on the official x402 ecosystem page maintained by Coinbase precisely because the community recognises that EU-native facilitators are needed alongside the canonical CDP one. Plurality is the design intent.

How they typically coexist in production

A US developer building an agent-facing API will start with CDP because it ships out of the box with every x402 SDK. When they get their first European customer who asks for an invoice in EUR with an EU-issued IBAN, they add AsterPay as a second facilitator and route based on customer geography. Alternatively, an EU developer starts with AsterPay (because EUR settlement is a hard requirement from day one) and adds CDP only if they need US-customer flows that prefer USDC custody. Neither path locks the developer into a single vendor; the x402 protocol allows facilitator selection per-request via the response headers.

Bottom line

Coinbase CDP is the canonical x402 facilitator and the right default for US-flavoured stacks. AsterPay is the EU-native facilitator with EUR settlement and KYA trust, and the right default for EU-flavoured stacks. Most production agent-commerce stacks will end up with both. The protocol is designed for that.