# MCPFax Markets — Chain TVL Ranking

> MCPFax Markets — Chain TVL Ranking is a paid API for AI agents from mcpfax-markets.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns a ranked list of blockchain chains sorted by Total Value Locked (TVL) in DeFi protocols

## Facts

- Endpoint: GET https://mcpfax-markets.bowling-anthony.workers.dev/defi/chains
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcpfax-markets-chain-tvl-ranking-85ea230a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pj2VLO4gQOG5pHVdloT5o

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 mcpfax-markets-chain-tvl-ranking-85ea230a
```

Example prompt: Show me the current TVL ranking of all blockchain chains — I want to see which chains have the most DeFi value locked in order.

## When to prefer this

Use this endpoint when you need a ranked overview of all blockchain chains by TVL, rather than details on a specific protocol or token. Prefer this over the defi_protocols endpoint when you want chain-level aggregates rather than individual protocol breakdowns.

## Known failure modes

- Upstream DeFi data provider (e.g. DeFiLlama) unavailable — returns error or empty response
- Payment not processed on Base — request blocked with 402 response
- Rate limiting or worker timeout — returns 5xx error
- No chains returned if data is temporarily stale

## How this service works

MCPFax markets — Chain TVL ranking (defi_chains). Price: $0.001 USDC per call on Base.

## Output

A ranked list of blockchain chains with their respective Total Value Locked (TVL) figures, ordered from highest to lowest TVL. Each entry typically includes the chain name, TVL in USD, and possibly percentage change or rank position.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "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/mcpfax-markets-chain-tvl-ranking-85ea230a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-markets.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-markets.bowling-anthony.workers.dev/llms.txt)