No monthly subscription. No setup fee. No contracts. One integration abstracts 7 payment protocols — you only pay when you're making money.
⚡
1%
All protocols
per transaction
✓
$0
Setup & Monthly
free forever
Every protocol · drag or use arrows
⚡
ACP
Agentic Commerce Protocol (OpenAI + Stripe)
Payment type
Card via Stripe SPT
Settlement
T+1 fiat (Stripe)
Auth method
SharedPaymentToken
Live agents
ChatGPT, Copilot, Perplexity
Spec
agenticcommerce.dev
Min tx
$0.50
Live
Shopfi 1%
Network: ~2.9% + $0.30 Stripe + 4% OpenAI
◈
AP2
Agent Payments Protocol (Google, 60+ partners)
Payment type
Card / Bank / Crypto
Settlement
Varies by rail
Auth method
Cryptographic Mandates (VDC)
Live agents
Google AI, Meta AI
Spec
ap2-protocol.org
Min tx
$0.01
Live
Shopfi 1%
Network: ~2.5–3% via PSP (Stripe, Adyen, etc.)
◎
x402
x402 Stablecoin Protocol (Coinbase + Cloudflare)
Payment type
USDC on Base
Settlement
~200ms on-chain
Auth method
EIP-3009 signed X-PAYMENT
Live agents
Claude, Coinbase Agent
Spec
x402.org
Min tx
$0.001
Live
Shopfi 1%
Network: $0 protocol fee, near-zero gas
🔗
MPP
Machine Payments Protocol (Stripe + Tempo)
Payment type
Fiat + Stablecoin
Settlement
T+1 fiat / ~instant crypto
Auth method
Shared Payment Tokens (SPTs)
Live agents
Autonomous AI agents
Spec
docs.stripe.com/payments/machine/mpp
Min tx
$0.001
Live
Shopfi 1%
Network: Low predictable Tempo gas fees
🔒
Visa TAP
Visa Trusted Agent Protocol
Payment type
Visa card rails
Settlement
Standard Visa
Auth method
HTTP Signature + Key Store
Live agents
Amazon Rufus
Spec
developer.visa.com
Min tx
$0.50
Live
Shopfi 1%
Network: ~1.5–2.5% Visa interchange + acquirer
▸
Visa CLI
Visa CLI — Command Line Commerce (Visa Crypto Labs)
Payment type
Tokenized Visa card
Settlement
Standard Visa rails
Auth method
Certificate-based auth
Live agents
CLI-enabled AI agents
Spec
visacli.sh
Min tx
$0.01
Live
Shopfi 1%
Network: Closed beta — fees TBD
💳
MC Agent Pay
Mastercard Agent Pay
Payment type
Mastercard tokenized
Settlement
Standard MC rails
Auth method
Agentic Tokens
Live agents
All US MC cardholders
Spec
developer.mastercard.com
Min tx
$0.50
Live
Shopfi 1%
Network: ~1.5–2.5% MC interchange + acquirer
How the fee is applied
A $100 card sale, broken down
Agent pays
$100.00
full amount
→
Shopfi fee
− $1.00
1% platform fee
→
Network fees
− ~$3.20
processor (e.g. Stripe ~2.9% + $0.30)
→
You receive
~$95.80
net after all fees
Shopfi's fee is deducted at settlement. Network/processor fees (Stripe, Visa, Mastercard) are charged separately by each provider — just like standard card processing today.
Crypto is different: On x402 and MPP, protocol fees are near-zero — Shopfi's 1% is typically your only cost.
ACP note: OpenAI charges merchants a separate 4% marketplace fee on Instant Checkout purchases, in addition to Stripe processing and Shopfi's 1%.
Cost calculator
What would you actually pay?
Monthly AI agent sales$10,000
Platform fee (1%)
$100.00
Monthly fee
$0
Shopfi cost at this volume$100.00/mo
Enterprise & API Partners
Processing high volume or building a multi-merchant platform? We offer custom rates starting at 0.85%, white-label options, and dedicated support.