Sippar is the identity and settlement layer for the Sips Economy — the emerging economy where software pays software per use, a sip ($0.0001) at a time, inline with the request, with no subscription and no human approval. When an agent calls a paid service, the service needs to know who is paying: the agent itself, with its own budget. Sippar produces that identity — a keyless wallet whose signatures are generated by ICP threshold cryptography, so the agent has no seed phrase to leak, custody, or paste into a config file. One identity pays across ten chains and adapts to whichever rail the service accepts (x402 today; card-network and Tempo MPP rails as they come online), and a cross-chain relay lets an agent pay on whatever chain it already holds funds and have the service settled on any other — no bridge. The same key pays humans too: a gig microtask settles as easily as an inference call. The agent is the buyer; the human just sets the cap.
Building prosperity for all, one sip at a time. Sippar's mission is to make agent-to-agent commerce work: to give every autonomous agent a keyless identity and a budget, so software can pay software per use — inline, across any chain or rail, with no human in the loop and no seed phrase that can be stolen. The unit is the sip: a hundredth of a cent, paid in the same round trip as the request.
The web reserved HTTP status 402, "Payment Required," in 1997 and left it empty for thirty years — card fees couldn't clear sub-cent payments, humans wouldn't approve them anyway, and no software buyer existed to do it instead. Between 2025 and 2026 all three fell at once: stablecoin fees collapsed, agents gained the ability to act, and every major payment company shipped an agent-commerce protocol. But that surfaced a new gap. Agents need to pay, and the identity on offer is either a raw private key pasted into a config file — the most common way agents get drained — or a custodial key some operator can sign with. And an agent holding funds on one chain still can't pay a service on another without a human bridging first. There is no safe, chain-agnostic way for an agent to hold an identity and pay across the ecosystems where services actually live.
Sippar gives every agent a keyless wallet and a cross-chain, cross-rail payment relay. ICP threshold cryptography signs each transaction, so the agent holds no raw private key and no seed phrase. One identity pays across ten chains and adapts to whichever rail the service accepts (x402 now; card-network and Tempo MPP rails next), and the relay settles a payment made on one chain against a service on any other, with no bridge. The same primitives give the agent a portable identity it can prove anywhere: a keyless agent can register under ERC-8004 and obtain a Self Protocol Agent ID — which we proved on mainnet by minting one with no private key. The human sets a budget cap; the agent does the spending. It all ships as open-source tooling so any builder can deploy a keyless, payable agent.
Global