FOR MERCHANTS

The future pays with Arispay

What happens when AI buys from you, not humans. Accept Arispay to ensure your AI customer is funded and trusted.

Reach out to learn more
One integration across
01 — Everyday moments

Built for when humans are not the buyers.

When an AI agent is the one placing the order, the payment layer has to answer for it — who authorized the spend, under what limit, with what proof. Arispay is that layer.

Travel

Agents that book. Rails that answer.

When an agent books the flight, the cab, and the hotel, every payment clears spend limits enforced server-side before it signs — per-transaction, daily, and monthly — with a signed record behind each charge.

SPEND CAPSSERVER-SIDE
Building

Build the agent. We move the money.

One REST contract — x402 settlement live on Base mainnet, USDC and EURC. Your agent makes the call, Arispay clears the payment. Idempotent on every write, signed on every event.

TIME-TO-LIVE1 AFTERNOON
Shopping

Get paid. Trusted.

Your payment rails can see that the agent is trusted and funded. You can safely accept agentic payments.

AGENT TRUSTVERIFIED
Settlement
Base
Live · mainnet
9:41●●●●
POST /v1/payments
201.Created
Arispay · World
live · usd
pi_3PXqL2A12 / 28
p
payment_intent.created
11:42:01 · webhook signed
✓
p
payment_intent.confirmed
11:42:02 · spend limit checked
✓
c
charge.succeeded
11:42:03 · idempotent
$48.00
Facilitator fee
$0
USDC + EURC
02 — The product

The payment API agents already trust.

One REST surface. Every payment idempotent, every webhook signed, every dollar capped by limits you control. Delegated custody via Coinbase CDP, live on Base mainnet.

  • 01Idempotent payments —  Retry without risk. No duplicate charges, ever.
  • 02HMAC-signed webhooks —  SHA-256 verified, automatically retried with backoff.
  • 03payagent for TypeScript —  Delegated payments, spend limits, and framework adapters in one package.
03 — The numbers

Engineered like the rail it replaces.

Numbers updated nightly from the same dashboards our operations team watches. The boring details — uptime, settlement speed, rails — that actually decide whether a payments product is good.

x402
Live settlement on Base mainnet for machine-to-machine micropayments.
USDC + EURC
Dollar and euro stablecoin settlement — delegated custody via Coinbase CDP.
$0
Facilitator fee. Open verify-and-settle at facilitator.arispay.app.
2 SDKs
payagent and paygate on npm — agent-side paying, merchant-side gating.
04 — Why Arispay

Four reasons for Arispay.

We don't believe in long feature lists. These are the four design decisions that do the work — each one you can verify against the API, the SDKs, and the chain.

01

x402 on Base

Live mainnet settlement for machine-to-machine micropayments. Every transaction replay-protected by nonce.

02

Built multi-rail

x402 is live today. Card (Fiserv) and payment channels are built and in staged rollout — one API surface, one webhook contract.

03

Delegated custody

Coinbase CDP holds the signing key. Your agent holds the policy. No self-custody required.

04

Signed webhooks

HMAC-SHA-256 on every event. Automatic retry with jittered backoff. Idempotent payment endpoints.

05 — Compliance

Compliance.

No black-box compliance claims — the controls are architectural. Custody is delegated, card data never enters our systems, and spend limits are enforced server-side on every payment. Three auth paths, one write surface, append-only audit trail.

  • 01Keys you never manage —  Delegated custody via Coinbase CDP. Agent keys encrypted AES-256-GCM at rest — never logged, never returned over the wire.
  • 02Card numbers you never touch —  Fiserv handles tokenization end to end. Raw card data never lands in Arispay's systems.
  • 03Limits that can't be bypassed —  Per-tx, daily, and monthly spend caps enforced at the API layer. Every mutation logged. Every webhook HMAC-signed.
06 — Get started

Money should move at the speed of life.

Get in touch
07 — Talk to us

Reach out to learn more.

Tell us about the business you run and where AI commerce fits in. We'll get back within one working day.

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