The minimal payment primitives for Web3 Built on @arc
Joined May 2026
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Pinned Tweet
PayNote is building non-custodial payment request infrastructure on @arc
➜ Create a USDC payment request
➜ Share a link
➜ Settle directly through wallets
➜ Verify onchain
The payment infrastructure is live right now
Start requesting payments at paynote.space
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
PayNote retweeted
Say hello to Penny, the new AI support assistant for @Paynote_arc. Instant, reliable answers for APIs, webhooks, and setup straight from verified docs.
No wallet access, no custody—just pure developer support. Try it out: paynote.space/support ⚡️
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
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
PayNote is now in the Arc House Ecosystem Showcase.
Full post: what we built, why it exists, how the x402 agent loop works, and how to get an API key in 30 seconds.
community.arc.io
Built on @arc
PayNote is now listed on @arclens_app, the Arc ecosystem directory.
Non-custodial payment coordination for @arc builders.
Human link sharing or full agent API with x402 and ERC-8183. Self-serve API keys at paynote.space/docs.
PayNote retweeted
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.
PayNote retweeted
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-wal…
PayNote retweeted
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
PayNote retweeted
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
PayNote retweeted
Been building @Paynote_arc on Arc for weeks.
Started with a form. Now it has:
• Smart contracts on Arc Testnet
• Multi-token support (USDC, EURC, cirBTC)
• Agent-compatible API & webhooks
• npm SDK & docs
@arc sub-second finality and USDC-as-gas makes it genuinely different.
PayNote retweeted
@Paynote_arc now supports cirBTC. You can now request payments in USDC, EURC, or cirBTC on @arc.
paynote.space
PayNote retweeted
PayNote is building non-custodial payment request infrastructure on @arc
➜ Create a USDC payment request
➜ Share a link
➜ Settle directly through wallets
➜ Verify onchain
The payment infrastructure is live right now
Start requesting payments at paynote.space
PayNote retweeted
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
PayNote retweeted
Direct on-chain payments with zero onboarding.
➠ Create a request (Amount + Reason)
➠ Share your unique link anywhere
➠ Get paid instantly direct to your wallet
A non-custodial, account-free setup delivers pure user abstraction, built on @arc
paynote.space
Direct on-chain payments with zero onboarding.
➠ Create a request (Amount + Reason)
➠ Share your unique link anywhere
➠ Get paid instantly direct to your wallet
A non-custodial, account-free setup delivers pure user abstraction, built on @arc
paynote.space
PayNote retweeted
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.
