# BlockRun.AI Bridge Protocol Ranking by Volume

> BlockRun.AI Bridge Protocol Ranking by Volume is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-09-15).

Returns a ranked list of cross-chain bridge protocols ordered by transaction volume on-chain.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/onchain/bridge/ranking
- Price: $0.0075/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-856ac169
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SHGf-ohWlTS8OvAbNAA0w

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 blockrun-ai-856ac169
```

Example prompt: What are the top cross-chain bridge protocols right now ranked by on-chain transaction volume?

## When to prefer this

Use this endpoint when you need to identify which cross-chain bridge protocols are most active by volume, compare bridge protocol popularity, or build a leaderboard of DeFi bridge activity. Prefer this over manual on-chain queries when you need a pre-aggregated, ranked view of bridge protocol usage.

## Known failure modes

- No data available for bridge rankings — upstream data source may be unavailable
- Rate limit exceeded — too many requests in a short period
- Service unavailable — blockrun.ai infrastructure may be down
- Empty result set if no bridge data is indexed yet

## How this service works

Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.

## Output

A ranked list of cross-chain bridge protocols ordered by on-chain transaction volume, including protocol names and their relative volume rankings.

## Example request

```json
{
 "input": {
  "body": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-856ac169/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)