# Vextorium DefiLlama Price

> Vextorium DefiLlama Price is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-28).

Fetches USD prices and confidence scores for up to 20 crypto tokens by chain:contract address or CoinGecko slug, sourced from DefiLlama's aggregated price feed.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/defillama-price?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-defillama-price-c1399c1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ELxyqAuvmpcklu_iWddQK

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 vextorium-defillama-price-c1399c1a -d '<json body>'
```

Example prompt: What's the current USD price of USDC and Bitcoin right now? Use the DefiLlama price feed with IDs 'ethereum:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48,coingecko:bitcoin' and include confidence scores.

## When to prefer this

Choose this endpoint when you need USD prices for EVM or Solana tokens identified by chain:contract address or CoinGecko slugs, especially when DefiLlama's multi-source aggregation and confidence scoring matter. Prefer it over raw DEX queries when you want a single normalized price with reliability metadata across up to 20 tokens in one call. Particularly useful for DeFi portfolio valuation, peg monitoring, and arbitrage detection where confidence scores are meaningful.

## Known failure modes

- Token identifier not found — returned in the 'not_found' array rather than an error
- Invalid coin format (missing chain prefix or bad CoinGecko slug) causes the token to be unresolved
- Exceeding 20 coins in one request may be silently truncated or rejected
- Stale prices if the underlying DefiLlama feed hasn't updated recently — check the 'updated' timestamp
- Low confidence score (well below 1.0) indicates unreliable or thinly-traded token price data

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

Returns a list of price objects per token, each containing the token id, symbol, USD price, number of decimals, last-updated timestamp, and a confidence score (0–1, where values close to 1 indicate high reliability). Also returns a 'not_found' list for any tokens that couldn't be resolved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "coins": {
   "type": "string",
   "description": "Comma-separated ids 'chain:contract' or 'coingecko:slug' (max 20)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Price aggregated from multiple sources by DefiLlama; 'confidence' close to 1 = reliable. Source: DefiLlama.",
  "prices": [
   {
    "id": "ethereum:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
    "symbol": "USDC",
    "updated": "2026-09-30 13:00",
    "decimals": 6,
    "price_usd": 0.999817132983207,
    "confidence": 0.99
   },
   {
    "id": "coingecko:bitcoin",
    "symbol": "BTC",
    "updated": "2026-09-30 13:00",
    "decimals": null,
    "price_usd": 85248.11985758645,
    "confidence": 0.99
   }
  ],
  "not_found": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-defillama-price-c1399c1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)