Cross-Chain API

Reliable, fast
Cross-Chain swaps. One integration.

Fast, price-efficient, and reliable multi-chain swaps in a single low-lift integration. Make bridging feel like swaps with route discovery and execution that keeps users moving, and boost retention with clear error tracking.

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99.97%

Uptime

10s

Median bridge time

<750ms

Median quote response

Resilient performance

Multiple established providers in one integration, continuously evaluated for reliability.

Bridges degrade. Liquidity shifts. Network conditions change. By continuously evaluating routes and selecting the best-performing options as conditions evolve, you deliver the best service to your users.

Bridge aggregation

from leading providers with more control.

Multiple routes

available under one integration.

Fallback paths

to reduce reverts and user drop-off.

End-to-end execution

without additional intervention.

How Cross-Chain API works

Users don’t care about chains, why would they care about multichain? Cross Chain Swaps match your same-chain experience to keep users focused on trading.

1. Request routes

Your app calls the API and receives routes as they’re discovered.

2. Execute the swap

Your user or app selects a route and executes a familiar swap-style a flow.

3. Track progress

User sees status updates and support is informed of incidents in real time.

Stay ahead of support inbounds

Built-in tracking informs support of incidents in real time, keeping users on their happy path (coming soon). Improve incident response and reconciliation with a unified view of each swap’s journey.

Show clear progress states in-app, reducing user frustration and churn

Eliminate “where are my funds?” tickets with transparent progress elements

Provide a route instantly

Bridge routes populate as soon as they’re found so users can continue their journey,  reducing integration work.

Battle tested

Matcha Meta is a meta DEX aggregator built on 0x APIs. Originally created to gather real feedback from users in the wild, today it’s done $7B+ in volume and is used by whales and advanced traders across DeFi.

$7B+

Volume

17+

Chains

99.97%

Uptime

11+ bridges and bridge aggregators in one integration.

Cross Chain
that feels like a Swap

Users don’t care about chains, why would they care about multichain? Cross Chain Swaps match your same-chain experience to keep users focused on trading.

Show clear progress states in-app, reducing user frustration and churn.

Eliminate “where are my funds?” tickets with transparent progress elements.

Improve incident response and reconciliation with a unified view of each swap’s journey.

One integration for cross chain swaps

0x Cross-Chain API is a unified product that handles routing, bridging, tracking, and execution, so you can free yourself from a patchwork of vendors.

Multi-vendor stacks mean every third-party update becomes your problem. Make life easier for your engineers and your end users with a single integration. Ship faster, reduce overheads, and keep users on your happy path.

One API provider for routing, bridging, tracking, and execution.

Fewer dependencies, fewer edge cases, fewer breaking changes.

Easier launches across new routes without maintenance burden.

Multi chain, one provider

Give your users a smooth end-to-end experience that sits cleanly in your existing stack.
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Launch cross-chain swaps without vendor sprawl.

Improve conversion with faster time-to-first-route.

Instant routes for better UX and lower integration lift.

Reduce support cost with fewer reverts and clearer lifecycle status.

Reduce custom fallback logic with redundancy built in.

Integrate one API instead of stitching multiple vendors.