PayNote (@Paynote_arc) header
PayNote (@Paynote_arc) profile picture

The minimal payment primitives for Web3 Built on @arc

Joined May 2026
Photo by PayNote (@Paynote_arc)Photo by PayNote (@Paynote_arc)Photo by PayNote (@Paynote_arc)Photo by PayNote (@Paynote_arc)
PayNote retweeted
Introducing Penny, PayNote's support assistant. Live now at paynote.space/support Ask anything about the API, webhooks, payment flows, or supported tokens. Answers come straight from PayNote's verified documentation, nothing invented, nothing guessed. Built on @arc
3
2
4
346
Say hello to Penny, the new AI support assistant for @Paynote_arc. Instant, reliable answers for APIs, webhooks, and setup straight from verified docs. โ€‹No wallet access, no custodyโ€”just pure developer support. Try it out: paynote.space/support โšก๏ธ
Introducing Penny, PayNote's support assistant. Live now at paynote.space/support Ask anything about the API, webhooks, payment flows, or supported tokens. Answers come straight from PayNote's verified documentation, nothing invented, nothing guessed. Built on @arc
2
3
59
Added a Prediction Market Payout template to Paynote. paynote.space/templates now has 6: invoice, freelance, retainer, bounty, expense, and prediction market settlement. Small addition, but it tracks where Arc builders are heading. Prediction markets are becoming a real category here, and settlement needs a home. If you're building a prediction market protocol on Arc and need a payout/settlement layer, this is exactly the kind of thing @Paynote_arc's recurring + webhook system can plug into.
2
3
89
PayNote roadmap update: Agent Wallets. @arc announced Turnkey integration for dev-controlled wallets. We're aligning our x402 layer to it, agents get scoped signing wallets (max spend, allowed recipients, and allowed tokens) and sign EIP-3009 authorizations without holding raw keys. No human custody. No agent custody risk either. paynote.space/docs#agent-walโ€ฆ
1
4
6
86
Yesterday I presented PayNote at @arc Office Hours to 300+ builders in the room. Walked through the full flow: payment request created in seconds, payer connects wallet, settles on Arc, and a non-custodial, on-chain receipt is generated. Zero accounts. Zero friction. I also broke down the programmatic flow, explaining exactly how AI agents can interact, trigger, and settle these transactions autonomously without a single human click. Ironically, The Bored Room was running simultaneously, and we had to wrap up early because legacy finance moves that slow. Shoutout to @silencexlm, @0xmikef, @samconnerone @bobbilee, and the @arc crew for the platform. And to everyone who stayed and engaged, you made it worth showing up. @Paynote_arc is payment coordination infrastructure on Arc. If you're building and need a payment layer, our API is open, docs are live, and self-serve keys take 30 seconds. paynote.space
5
5
11
358
Big update! @Paynote_arc is now multilingual. The stablecoin internet is global. Payment infrastructure should be too. Language selector live on paynote.space Built on @arc
1
5
6
118
Been building @Paynote_arc on Arc for weeks. Started with a form. Now it has: โ€ข Smart contracts on Arc Testnet โ€ข Multi-token support (USDC, EURC, cirBTC) โ€ข Agent-compatible API & webhooks โ€ข npm SDK & docs @arc sub-second finality and USDC-as-gas makes it genuinely different.
1
7
1
10
532
Replying to @Paynote_arc
@Paynote_arc now supports cirBTC. You can now request payments in USDC, EURC, or cirBTC on @arc. paynote.space
2
5
100
PayNote retweeted
PayNote is building non-custodial payment request infrastructure on @arc โ€‹โžœ Create a USDC payment request โ€‹โžœ Share a link โ€‹โžœ Settle directly through wallets โ€‹โžœ Verify onchain The payment infrastructure is live right now Start requesting payments at paynote.space
2
4
3
11
2,129
Just deployed PayNoteRouterV2 on @arc testnet, a programmable payment router for USDC and EURC. Exact-amount approvals only. Token whitelist enforced on-chain. No unlimited approvals. No custody. paynote.space | built on @arc
3
4
114
PayNote retweeted
Direct on-chain payments with zero onboarding. โž  Create a request (Amount + Reason) โž  Share your unique link anywhere โž  Get paid instantly direct to your wallet A non-custodial, account-free setup delivers pure user abstraction, built on @arc paynote.space
3
7
137
Complex on-chain payments should not require a master's degree. They should just work. Just pushed an update to the @paynote_arc UI. Non-custodial, state-free routing, and now featuring a minimal light and dark mode for a better builder experience.
2
7
10
151