# Bridge TVL & Per-Chain Liquidity Concentration

> Bridge TVL & Per-Chain Liquidity Concentration is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns total value locked and per-chain liquidity breakdown for a cross-chain bridge, including the largest single chain's share, sourced from DefiLlama.

## Facts

- Endpoint: GET https://api.agentstools.dev/bridge/tvl
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bridge-tvl-per-chain-liquidity-concentration-3c05baec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IL2daxImZ1ev7U1E5SUOq

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 bridge-tvl-per-chain-liquidity-concentration-3c05baec
```

Example prompt: What's the total TVL for Stargate bridge right now, and how concentrated is its liquidity — which chain holds the biggest share?

## When to prefer this

Use this endpoint when you need both aggregate TVL and chain-level liquidity concentration for a specific cross-chain bridge in a single call. Prefer this over raw DefiLlama API access when you want a normalized, ready-to-use signal for routing decisions or DeFi risk analysis without handling raw data transformation yourself.

## Known failure modes

- Bridge name not recognized or not in covered set — returns error or empty result
- Bridge slug ambiguity if multiple names resolve to different protocols
- DefiLlama upstream data unavailability causing stale or missing TVL
- Missing required 'bridge' query parameter returns validation error
- Rate limiting or payment failure resulting in 402 or 429 response

## How this service works

Bridge TVL and per-chain liquidity concentration: total value locked plus the breakdown across chains and the largest single chain's share, from DefiLlama. A liquidity-depth and concentration signal for routing decisions.

## Output

Returns the bridge's total value locked (TVL) in USD, a breakdown of TVL distributed across each supported chain, and the share held by the single largest chain as a liquidity concentration signal for routing or risk decisions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "bridge"
     ],
     "properties": {
      "bridge": {
       "type": "string",
       "description": "Bridge name, slug or alias (e.g. Stargate, Across, Wormhole, Arbitrum, CCTP). Resolved case-insensitively to the covered set."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bridge-tvl-per-chain-liquidity-concentration-3c05baec/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)