# defi-dx.hugen.tokyo – List Supported DeFi Chains

> defi-dx.hugen.tokyo – List Supported DeFi Chains is a paid API for AI agents from defi-dx.hugen.tokyo, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns a list of blockchain networks supported by the defi-dx DeFi data endpoint.

## Facts

- Endpoint: GET https://defi-dx.hugen.tokyo/defi/chains
- 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/defi-dx-hugen-tokyo-6733f804
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OJmgsJ8DMcBJSizP_hRhD

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 defi-dx-hugen-tokyo-6733f804
```

Example prompt: What blockchain networks does defi-dx support for DeFi data? Can you give me the full list of chains I can query?

## When to prefer this

Use this endpoint when you need to discover which blockchain networks are available before making further DeFi queries (protocols, stablecoins, DEX volume) on defi-dx. It is the foundational discovery call for the defi-dx API suite.

## Known failure modes

- Payment required (402) if x402 micropayment header is missing or invalid
- Service unavailable if backend chain registry is unreachable
- Empty or partial list if provider data is stale or incomplete

## How this service works

Returns supported blockchain networks for DeFi integrations.

## Output

A list of supported blockchain/DeFi chain identifiers and names that the defi-dx endpoint can serve data for, enabling the agent to know which networks are queryable for protocols, stablecoins, and DEX volume.

## Example request

```json
{}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-dx-hugen-tokyo-6733f804/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi-dx.hugen.tokyo](https://www.zero.xyz/host/defi-dx.hugen.tokyo/llms.txt)