Agentic
stablecoin
payments.
Tell your AI payment agent to send, schedule, or stream dollars. It stays inside budgets you set and confirms with your passkey. Machines pay over the same rails with HTTP 402 and the Machine Payments Protocol.
You send
$48.00
USD
To
acme-cafe.pay
Status
Confirmed
Receipt
Ready
Your AI payment agent
Your wallet, now with a voice. Ask it to send money, check balances, or schedule a payment. It handles the technical details.
Natural Language Payments
Tell your agent to send a payment in plain English, Turkish, or whatever language you speak.
MCP Server for Developers
Twelve MCP tools for agents to check balances, send payments, resolve .pay names, and prepare intents.
Machine Payments Protocol
Agents can pay for services on your behalf within the spend limits you set, with passkey-bound delegation.
Security Built In
Prompt injection protection, configurable spend limits, passkey confirmation for large transfers.
Machines pay over HTTP 402
Fluxus's machine-payment endpoints answer unpaid requests with an HTTP 402 challenge. An agent settles it in dollars via the Machine Payments Protocol and retries. No API keys, no invoices.
Live endpoint pricing
| Endpoint | Purpose | Price |
|---|---|---|
| POST /api/mpp/send | One-shot transfer | $0.01 |
| POST /api/mpp/stream | Streaming payment session | $0.02 |
| POST /api/mpp/scheduled | Scheduled payment | $0.02 |
Prices in USD per request. The same values drive the production 402 challenges on Tempo.
Agent budgets with hard caps
Give the AI agent a dollar budget with a spending cap and an expiry. It can act on your behalf only inside those limits.
Receive policies in the Security Center
Preview who may pay you ahead of network-level enforcement, and manage passkeys and scoped access keys in one place.
Signed receipts on every charge
Each settled 402 request returns a Payment-Receipt header backed by a Tempo transaction hash.
$48.00 → acme-cafe.pay
Confirmed. Receipt ready.
Built for payments, not complexity
Five surfaces cover the payment loop: send, receive, checkout, names, and agent-assisted transfers.
Instant Send
Move dollars to a name, wallet, or group. The receipt keeps the amount, recipient, and status in one place.
One-Tap Receive
Share a QR code or payment link from the counter. The payer sees the amount before confirming.
QR POS Terminal
Turn any screen into a checkout. Display the amount, scan the QR code, and hand over the receipt.
.pay Name Service
Claim a .pay name and share it instead of a long wallet address. It reads like a place people can remember.
AI Agent Wallet
Tell your wallet what to do in plain language. Review the transfer before anything moves.
Up and running in 60 seconds
No apps, no exchanges, no friction.
Create Your Wallet
Register a passkey on your device in seconds. No downloads, no seed phrases. You can also connect an existing MetaMask or WalletConnect wallet.
Receive Stablecoins
Share your wallet address or .pay name to receive a compatible stablecoin. Top up from a supported exchange or bridge.
Send Instantly
Enter a recipient and amount. Confirm with your passkey. The receipt is ready before the counter line moves.
Create Your Wallet
Register a passkey on your device in seconds. No downloads, no seed phrases. You can also connect an existing MetaMask or WalletConnect wallet.
Receive Stablecoins
Share your wallet address or .pay name to receive a compatible stablecoin. Top up from a supported exchange or bridge.
Send Instantly
Enter a recipient and amount. Confirm with your passkey. The receipt is ready before the counter line moves.
Built for trust
Four things keep your money safe.
Passkey Security
Your passkey lives on your device, not a server. No password to forget, no seed phrase to lose.
Clear Receipts
Every payment returns a plain receipt with the amount, recipient, and status.
Payment Network
Fluxus is tuned for stablecoin payments, with the infrastructure kept out of the happy path.
External Wallet Support
Prefer MetaMask or WalletConnect? Connect your existing wallet and keep full custody. Fluxus never handles your keys.
Part of the Tempo ecosystem
Fluxus is part of the Tempo ecosystem. Read the docs or connect with the Tempo community.