Sip the internet.Pay by the drop.
Your agent pays pennies per call for every API, model, and app you already use. And the rest, now within reach. No subscription required.
The substrate
The payment relay for the agent economy.
One integration. Every agent-payment protocol that matters. The connector, not the custodian.
Across every chain your agent might land on.
loading
loading
- Ethereum~20min
- Base~200ms
- Arbitrum~250ms
- Optimism~200ms
- Polygon~200ms
- BNB~200ms
- Solana~400ms
- Stellar~5s
- Algorand~4.5s
- TON~5s
- Tempo~2s
All mainnet. Settling live.
Real services. Real prices. Per call.
A model query
A web search
A scrape
An identity check
An agent task
Pay with stablecoins, on whichever chain you already hold them.
How it works
Sip. Settle. Receipt.
Three steps, one HTTP round trip. The agent doesn't pause, the merchant doesn't bill, and nobody opens a wallet UI in the middle. The cheapest call we've cleared was three sips. The infrastructure costs roughly the same as a search.
Sip
The agent calls a paid service. The 402 response quotes a price; the agent pays inline, in the same request. Three sips for a weather call, 100 for a Perplexity query, 500 for a Gemini inference. New verified services join every week.
Settle
Sippar pays the service for you, in whatever it accepts. No network to pick, no token to hold, no wallet to open. It just goes through, every time.
Receipt
The merchant gets paid. The agent gets the data. You read one aggregate report at the end of the month, in sips, with USD parentheticals on every line.
No crypto needed
Earn a little credit. Let your agent spend it.
Open the Telegram bot, earn a small balance, and put it to work on real services right away. No wallet to fund, no card, no crypto to buy first.
Built on
Why Sippar
Built to stay out of your way.
Your agent reaches the services it needs and pays in a way that just works. No networks to manage, no tokens to hold, no wallets to juggle. You set a limit, and you read a receipt.
Humans in charge
The agent is yours, not the platform's. Spending caps are enforced automatically, not by our goodwill. If we vanish tomorrow, your agent keeps working. There is nobody in the middle, including us.
Protected by math
Your money is protected by math, not by trusting one company. No single operator can move it alone, including us. You stay in control, with no seed phrase to lose.
Works with everything
Your agent reaches the services it needs, wherever they live. It learns one simple flow, and we handle whatever each service needs behind the scenes.
Pay by the drop
Card fees made anything under a dollar pointless to sell for thirty years. A sip is a hundredth of a cent, cleared in well under a second. The unit isn't an upgrade. It's a different category.
Works with the agent you already use
Claude, your own scripts, the tools you already run. If it can make a web request, it can pay with Sippar.
Honest scale
Verified x402 services across every chain we support, with more arriving. Live on mainnet since 2026. Built by a solo founder, with the gaps named on the about page, not buried.
Every payment
A signed receipt.
Every X402 settlement lands as a Basescan- or Solscan-verifiable receipt, threshold-signed on ICP. No wrapped assets, no reconciliation, no trust assumptions. Both legs of a cross-chain relay show up on-chain.
Two ways in.
Build it, or just use it.
For builders
Ship your first agent payment in an afternoon. One config line, any service your agent lands on.
For everyone
Set a limit, and let your agent pay its own way. You'll see what it buys.