# santyvv-data DeFi Chains List

> santyvv-data DeFi Chains List is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Returns a list of supported blockchain networks available for on-chain DeFi data queries, paid per call via x402/USDC

## Facts

- Endpoint: GET https://x402.santyvv.com/api/defi/chains?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-defi-chains-list-d9e2976c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2VydWSslL25hxy1up45ci

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 santyvv-data-defi-chains-list-d9e2976c
```

Example prompt: Give me a list of all the blockchain networks supported by the santyvv DeFi data API — I want to know which chains I can query for on-chain data.

## When to prefer this

Choose this endpoint when you need a keyless, account-free way to discover which blockchain networks are supported for DeFi data queries, especially in agent workflows that use x402 micropayments on Base. Prefer over alternatives when you want normalized, multi-source responses without managing API keys.

## Known failure modes

- 402 Payment Required if USDC payment via x402 is not provided or insufficient
- Network timeout if upstream data providers are unavailable
- Empty or partial chain list if provider fallback is exhausted
- Invalid response format if edge cache is stale or corrupted

## How this service works

Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.

## Output

A normalized list of supported blockchain networks, likely including chain names, chain IDs, and metadata indicating which networks are available for subsequent DeFi and on-chain data queries. Response is edge-cached and sourced from public on-chain data providers.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-defi-chains-list-d9e2976c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.santyvv.com](https://www.zero.xyz/host/x402.santyvv.com/llms.txt)