a402

Trusted agentic payment. Coming soon on Arc

[a402 @a402finance]

Introducing A402 - the trust & liquidity layer powering agent payments on @arc

Let's dive into what A402 is built for 👇

[a402 @a402finance]

@michellev_ea @arc

[Michelle @michellev_ea]

Monday check-in with the agentic payments community 👋

@a402finance testnet is dropping soon and we're locking in a small circle of design partners before we go public.

looking for builders in the @arc / x402 ecosystem:
- agent frameworks
- discovery + payment layers
- API monetization tools

what you get: early access, co-positioning, and the trust layer (KYA + AML + cross-chain + fiat ramps) that makes your product enterprise-ready.

this isn't for everyone. if you know, you know.

drop a reply or slide into my DMs 🫡

[a402 @a402finance]

@SofiaCryptoVibe @aomidev @BreadTycoons @AnteDotGames @swishdotcash @DegenhoodL2 @UnrealCraftSol thanks for the spotlight

[a402 @a402finance]

Cross-chain is where speed dies unless you rethink the model.

When USDC burns on the source chain, we don't wait for the bridge to finish. We issue the API provider a signed proof of the burn immediately an EIP-712 escrow commitment with Circle's attestation guarantee behind it.

The 200 comes back. The agent keeps running. Arc settles in the background.

Under 25s cross-chain. Zero hang time for the caller.
Fast where it matters.

Verified before it moves 👇
https://t.co/00ow8oeLIX

[a402 @a402finance]

Most payment layers make you choose: fast or safe.

A402 doesn't. Here's exactly how 👇

[a402 @a402finance]

Whether you're an @arc-hitects builder running a paid API, a team deploying agents, or just watching the agentic economy take shape —A402 is built for you.

Early access is open. Come build the trust layer with us.
→ https://t.co/00ow8oeLIX

Follow for updates. This is just the beginning

[a402 @a402finance]

Introducing A402 - the trust & liquidity layer powering agent payments on @arc

Let's dive into what A402 is built for 👇

[a402 @a402finance]

@DmitryBvilo Sure, you can dm @michellev_ea on this

[a402 @a402finance]

@gfyselfb Sure, you can dm @michellev_ea on this

[a402 @a402finance]

On @arc, the full loop is synchronous.

Agent hits endpoint → gate check (cached) → sign → settled.

Under 500ms, end to end.

No queue. No async detour. The agent gets a 200 back like any other API call — because to A402, a verified wallet is just a fast lookup, not a live compliance run.

[a402 @a402finance]

Identity checks are slow because everyone runs them at settlement time.

We don't.

A402 screens wallets upfront — sanctions, AML, trust tier — then caches the result for 24h. By the time an agent pays, the answer is already there.

Policy gate: <50ms. Not because we skip the check. Because we already did it.

[a402 @a402finance]

Cross-chain is where speed dies — unless you rethink the model.

When USDC burns on the source chain, we don't wait for the bridge to finish. We issue the API provider a signed proof of the burn immediately — an EIP-712 escrow commitment with Circle's attestation guarantee behind it.

The 200 comes back. The agent keeps running. Arc settles in the background.

Under 25s cross-chain. Zero hang time for the caller.
Fast where it matters.

Verified before it moves. → https://t.co/Rpf0fdhdMP

[a402 @a402finance]

On Arc, the full loop is synchronous.

Agent hits endpoint → gate check (cached) → sign → settled.

Under 500ms, end to end.

No queue. No async detour. The agent gets a 200 back like any other API call — because to A402, a verified wallet is just a fast lookup, not a live compliance run.

[a402 @a402finance]

Identity checks are slow because everyone runs them at settlement time.

We don't.

A402 screens wallets upfront — sanctions, AML, trust tier — then caches the result for 24h. By the time an agent pays, the answer is already there.

Policy gate: <50ms. Not because we skip the check. Because we already did it.

[a402 @a402finance]

AI agents don't wait.

When an agent hits a paid API, it needs a response in the same breath — not after a 3-second compliance detour that breaks the call loop.

That's the problem every "compliance-first" payment layer gets wrong. They bolt identity checks onto settlement and call the slowdown acceptable.
It isn't.

[a402 @a402finance]

@arc This is the end of the thread.

All announcements will come from the official @a402finance account only.

Have questions or building on @arc ? Slide into our DMs or contact @michellev_ea we're talking to every early builder personally.

[a402 @a402finance]

A402 is built for two sides of the same market:

@arc-hitects building paid APIs — know who's calling, gate by trust tier, accept any chain. One middleware line.

Agent developers — verify your wallet once. Your agent pays any Arc-native API, from any chain, with compliance built in.

The agentic economy needs infrastructure. We're building it.

[a402 @a402finance]

We're not just another payment facilitator.

🧠 KYA (Know Your Agent) — verified identity for every wallet. Trust Tiers A through D, earned on-chain.

🔗 Cross-chain ingestion — agents pay from Ethereum, Base, Arbitrum. Arc settles it.

🏦 Fiat loop — fund agent wallets from your bank. Receive revenues back to your bank.

Trust + liquidity, in one flow.

[a402 @a402finance]

AI agents are already spending real money at scale.

165M x402 transactions. 69,000 active agents. ~$600M annualized volume.

But the payment loop has 3 gaps nobody's closed:

— API providers can't identify who's calling them
— Agent capital is stranded on the wrong chain
— No purpose-built fiat on/off-ramp for agentic revenues

That's the gap A402 fills.

[a402 @a402finance]

A402 is the trust, identity, and liquidity layer for AI agent payments.

When an agent pays for an API, three things need to happen that don't work today:

🔹 The API needs to know who the agent is
🔹 Money needs to move across chains without friction
🔹 Revenue needs to land back in your bank

A402 solves all three. Natively on Arc.