# x402 Chain Intel – Bridge Swap Rate

> x402 Chain Intel – Bridge Swap Rate is a paid API for AI agents from x402-chain-intel.vercel.app, paid per call via x402, $0.18/call, status unknown (last checked 2026-10-12).

Returns the current cross-chain bridge swap rate for a given token pair and amount, enabling trading bots to price bridge transactions in real time.

## Facts

- Endpoint: POST https://x402-chain-intel.vercel.app/api/bridge/swap-rate?utm_source=zero.xyz
- Price: $0.18/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-chain-intel-bridge-swap-rate-bf6c820c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vzs2_TPQkPlogElB_pX9Q

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-chain-intel-bridge-swap-rate-bf6c820c -d '<json body>'
```

Example prompt: What's the current bridge swap rate for converting 500 USDC from Ethereum mainnet to Base — I need the rate and estimated output for my trading bot before I execute.

## When to prefer this

Choose this endpoint when your trading bot or DeFi agent needs a real-time cross-chain bridge swap rate quote before executing a bridge transaction. It is best suited for latency-sensitive arbitrage bots, cross-chain rebalancing agents, and yield routing strategies that need accurate, up-to-date pricing data across multiple blockchain networks. Prefer this over generic DEX rate APIs when the operation specifically involves bridging assets between different chains rather than same-chain swaps.

## Known failure modes

- Unsupported chain pair returns an error indicating the bridge route is not available
- Invalid or unrecognized token address returns a validation error
- Amount below minimum bridge threshold returns an error with minimum required
- Network congestion or RPC downtime may cause timeout or stale rate response
- Incorrect token decimals in input may produce inaccurate rate calculations

## How this service works

27 paid endpoints for trading bots

## Output

Returns the current swap rate for the specified cross-chain bridge route, including the exchange rate, estimated output token amount after fees, bridge protocol fee, and estimated slippage for the given input amount and token pair.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-chain-intel-bridge-swap-rate-bf6c820c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-chain-intel.vercel.app](https://www.zero.xyz/host/x402-chain-intel.vercel.app/llms.txt)