Uniswap v2, v3, v4 — and the world's first aggregator hook — went live today on Tempo, the payments-first Layer 1 incubated by Stripe and Paradigm.
This isn't just another chain deployment. It's the first real-world proof of Uniswap v4 hooks turning external liquidity into native v4 pools, delivering seamless routing across Tempo's built-in stablecoin DEX and Uniswap's full liquidity layer with a single API call.
What the Aggregator Hook Actually Does
Tempo ships with a native, enshrined stablecoin DEX optimized for pairs like USDC.e ↔ USDT0 — lightning-fast, sub-second finality, stablecoin-denominated gas, and 100K+ TPS. Uniswap handles everything else.
The aggregator hook wraps that native DEX and exposes it as regular Uniswap v4 pools. Result:
- Stable-to-stable swaps route through the Uniswap interface but settle directly on Tempo's DEX.
- All other pairs settle on Uniswap v4.
- Developers and users get both sources in one swap — no third-party routers, no custom code, no extra gas.
As the official announcement puts it:
"Under the hood, an aggregator hook wraps Tempo's stablecoin DEX as a set of v4 pools, so both liquidity sources are available in a single swap."
"This is the first live deployment of aggregator hooks, a v4 primitive that can turn any external liquidity source into a Uniswap pool."
More aggregator hooks (and support for additional chains/liquidity sources) are coming soon — the clearest signal yet that Uniswap is evolving into the onchain meta-aggregator.
Built for Payments + Agents
Tempo launched alongside its Machine Payments Protocol (MPP), a new standard for agent-to-agent payments. Uniswap delivered a ready-to-use skill from day one:
npx skills add uniswap/uniswap-ai --skill pay-with-any-tokenAgents can now auto-swap into any required token to complete a 402 challenge payment — even if they don't hold it. Perfect for the emerging AI economy on a chain designed for real-world stablecoin flows (with design partners including Visa, Mastercard, Deutsche Bank, and Shopify).
Developer Experience
- Uniswap Protocol + API live today across 18+ chains (including Tempo).
- Free API key at developers.uniswap.org — gas estimation, slippage, and intelligent routing included.
- If you're already integrated with Uniswap, Tempo liquidity works automatically.
- Web app and wallet support dropping soon.
No upfront costs and no per-trade fees — just a free API key at developers.uniswap.org.
Why This Matters for DeFi
This deployment turns v4 hooks into a production-grade unification layer. Users get one interface. Builders get one integration. Agents get one skill. And Uniswap quietly positions itself as the default liquidity destination for the next wave of tokenized payments.
Protocol and API are live right now. Grab your API key and start routing, or watch the short demo video in Uniswap's announcement thread.
Read the full Uniswap blog post: https://blog.uniswap.org/uniswap-is-live-on-tempo
Original announcement: https://x.com/Uniswap/status/2034353624650805277
Tempo docs: https://tempo.xyz