AsterPay is the EUR settlement layer for AI agent payments. It converts USDC and EURC stablecoins to EUR via SEPA Instant, enabling AI agents to receive payments in euros.

How do I integrate AsterPay?

Via MCP server (npm: @asterpay/mcp-server), Python SDK (pip install asterpay), or direct API at x402.asterpay.io. Documentation at asterpay.io/docs.

What protocols does AsterPay support?

AsterPay supports x402 (Coinbase), MPP/Machine Payments Protocol (Stripe/Tempo), AP2 (Google), A2A, and ERC-8004. Every 402 response includes both x402 and MPP headers — agents use whichever SDK they have.

AsterPay — Dual Protocol (x402 + MPP) Settlement API for AI Agents | USDC to EUR

Agent Trust Framework

6 Shields Between an Agent and Your Bank Account

Every payment passes through six security layers before settlement. No shortcuts.

VERIFY

Agent Identity
ERC-8004 on-chain proof
Wallet ownership

SCREEN

Sanctions & AML
Chainalysis <100ms
Source of funds

SCORE

Trust Score 0–100
3rd-party attestations
Higher trust = higher limits

DISCOVER

MPE: Find where to pay
IBAN from company name
VoP verification (PSD2)

SETTLE

EUR via SEPA Instant
<10s settlement
GBP · USD coming Q2

COMPLY

MiCA + VAT + AI Act
Travel Rule >€1K
EU-native entity

Agent Access Tiers

Higher trust unlocks higher payment limits. Like a credit score for AI agents.

	Open	Verified	Trusted	Enterprise
Trust Score	0–20	20–50	50–80	80–100
Max per transaction	$1	$1,000	$10,000	Unlimited
Identity required	Wallet only	ERC-8004	+ Operator ID	+ Full KYB
Compliance	Sanctions	+ Wallet history	+ Travel Rule	+ Custom policy
Settlement	Crypto only	EUR	EUR	EUR · Multi-fiat

Why AsterPay

Same EUR rail. Built for agents instead of forms. Read the long version →

	Stripe	PayPal	Wise	Raw x402	AsterPay
Per-call price	2.9% + 30¢	2.9% + 30¢	0.4% + fee	gas only	$0.001–$0.10
EUR in bank	2–7 days	1–3 days	sec–hours	crypto only	<5 sec
Agent identity (KYA)	✕	✕	✕	✕	✓ Score 0–100
Sanctions per call	account	account	account	✕	✓ <100ms
Merchant by name	✕	✕	✕	✕	✓ MPE + VoP
x402 native	✕	✕	✕	✓	✓ + MPP
MiCA	indirect	indirect	EMI	✕	✓ CY native
Time to first pay	days	days	days	minutes	60 seconds
Built for agents	✕	✕	✕	protocol	✓ yes

Stripe, PayPal and Wise are great for human-initiated business. They were not built for autonomous agents that need per-call sanctions screening, identity scoring, or sub-cent payments. Raw x402 solves the protocol but leaves trust, fiat and merchant resolution to you.

The Complete Agent Payment Stack

Identity. Discovery. Security. Settlement. Compliance. One API.

Know Your Agent

ERC-8004 Identity
On-chain agent verification + Trust Score. Know who's paying before you serve. Agent #16850 →

Merchant Discovery (MPE)

Find where to pay — automatically
Agent sends a company name. AsterPay finds verified bank details from 5 sources + Verification of Payee (PSD2). No other facilitator does this.

Verified Payments

x402 + MPP + AP2 Protocol
Dual protocol: accepts both x402 (Coinbase) and MPP (Stripe/Tempo) payments. x402r escrow protects low-trust agents with auto-refunds. Every transaction screened for sanctions in <100ms via Chainalysis.

5-Chain Settlement

Base · Polygon · Arbitrum · Optimism · Ethereum
USDC on any chain → your bank in seconds. Agents choose their preferred network. GBP & USD coming Q2.

Future-Proof Compliance

MiCA + VAT + Travel Rule + EU AI Act
EU-native entity (Cyprus). KYA fully assessed under AI Act (Article 50 transparency). Agent tax compliance ready. When regulation catches up, you're already covered.

Simple pricing

Choose your path: pay per API call with no signup, receive fiat settlements, or custom enterprise.

API Usage

Self-serve, no subscription

$0.004 USDC per call

No signup required

x402 + MPP — dual protocol, pay per call
No monthly fees or minimums
Session packs: 50/250/1000 calls
6+ chains (Base, Ethereum, Solana, XRPL, Polygon, Monad)

Create Free Account

Popular

Fiat Settlement

For merchants

Competitive rates

SEPA Instant, volume discounts

USDC · EURC · EURCV → EUR to your IBAN
SEPA Instant (<10s)
KYC/AML onboarding
Sandbox + production

Apply for Settlement

Enterprise

Custom integrations

Custom pricing

Volume discounts, SLAs

Dedicated support
Custom pricing tiers
NDA & technical review
Pilot → production

Contact Sales

🇪🇺 5-Chain European Settlement

AI Agents Pay Each Other

Autonomous AI agents transact across Base, Ethereum, Polygon, Arbitrum & Optimism. Stablecoins settle to EUR via SEPA Instant.

5-Chain EUR Off-Ramp

USDC from Base, Polygon, Arbitrum, Optimism & Ethereum → EUR via SEPA Instant.

MiCA-Aligned

Fully MiCA-compliant via licensed European settlement partners.

CFO Dashboard

Enterprise-grade treasury management for AI agents.

ERC-8004 Discovery

Registered on-chain. AI agents find our EUR settlement automatically via the 8004 registry.

$1-5T

Agentic Commerce by 2030 (McKinsey)

Chains Supported (Base, Ethereum, Solana...)

<10s

EUR to Bank (SEPA Instant)

Integrate in One Line

Your AI agent can convert stablecoins to EUR with one config line. No API keys needed.

LIVE

⚡

@asterpay/mcp-server

MCP Server

Multichain EUR settlement for AI agents. Works in Claude & Cursor. USDC, EURC & EURCV supported.

JSON — claude_desktop_config.json

{
  "mcpServers": {
    "asterpay": {
      "command": "npx",
      "args": ["@asterpay/mcp-server"]
    }
  }
}

npx @asterpay/mcp-server

✓ Claude & Cursor ✓ No API Keys ✓ USDC · EURC · EURCV → EUR ✓ SEPA Instant ✓ Pay-per-call

📦 View on npm →

🐍

asterpay

Python SDK

Multichain EUR settlement for Python. Sync & async. USDC, EURC & EURCV to EUR.

pip install asterpay

✓ Sync & Async ✓ 7 Service Modules ✓ x402 Error Handling ✓ Type Hints

📦 View on PyPI →

NEW

📋

Attest

EU AI Act · TypeScript

EU AI Act deadline is August 2, 2026. If your app uses OpenAI, Anthropic, or any AI SDK — you need documentation ready. Attest scans your codebase, finds every AI import, and generates the compliance docs. Open source. Not legal advice — pair with counsel.

npx @asterpay/attest scan

Zero install — try it now in your project directory

Terminal

# Find AI SDKs in your code
npx @asterpay/attest scan

# Check transparency/logging signals
npx @asterpay/attest check

# Generate Annex IV compliance docs
npx @asterpay/attest docs -o ./compliance

✓ AST scan ✓ Risk hints ✓ Doc scaffolds ✓ Audit JSONL ✓ Powered by AsterPay

Create Free Account Get Started in 60s (code only) GitHub →

Why AsterPay Wins

Everyone does payments. We built it specifically for AI agents — identity, trust, and EUR settlement in one stack.

Feature	AsterPay	Stripe	Coinbase CDP	Circle
Agent Identity (KYA)	✓ 5-layer	KYC/KYB only	Not agent-native	Not agent-native
Agent Trust Score	✓ 0–100	Risk scoring	Not focus	Not focus
Sanctions Screening	✓ <100ms	✓	✓	✓
EUR SEPA Instant	✓ <10s	Payouts only	Via exchange	Via partners
x402 Protocol	✓	Not supported	✓ Creator	Not supported
MiCA + EU Entity	✓ Cyprus	✓ Ireland	USA + EU sub	✓ France
ERC-8004 Agent Identity	✓ #16850	Not focus	Not focus	Not focus
Agent-native MCP + SDK	✓ MCP + Python	SDK (not agent)	✓ AgentKit	SDK (not agent)
Stablecoin Off-ramp	✓ SEPA	✓ Via partner	✓ Exchange	✓ Redeem

Trusted Fiat Settlement for AI Agents

Every layer of the stack is an open standard.