# BlockRun.AI Token Price Lookup (DefiLlama)

> BlockRun.AI Token Price Lookup (DefiLlama) is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Fetches current token prices for one or more coins identified by CoinGecko slug or on-chain contract address via the DefiLlama price feed.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/defillama/prices/coingecko:the-graph,coingecko:fetch-ai
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-token-price-lookup-defillama-5c437e65
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_igXT_dxmJc35GbmLk9XKo

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 blockrun-ai-token-price-lookup-defillama-5c437e65
```

Example prompt: What are the current prices for The Graph (GRT) and Fetch.AI (FET)? Pull them using their CoinGecko IDs: coingecko:the-graph and coingecko:fetch-ai.

## When to prefer this

Use this endpoint when you need fast, low-cost spot price lookups for one or more crypto tokens identified by CoinGecko slug or on-chain contract address, especially when you want DefiLlama's cross-DEX aggregated price rather than a single exchange feed. Ideal for DeFi analytics, portfolio valuation, or pre-trade checks.

## Known failure modes

- Invalid or unrecognized coin identifier returns empty or null data for that entry
- Malformed path segment (bad coingecko slug or invalid contract address) may return an error or missing price
- Rate limiting or upstream DefiLlama unavailability causes request failure
- Network or payment failure returns a 402 or 5xx error

## How this service works

Token price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.

## Output

Returns a JSON object containing price data keyed by coin identifier (e.g. coingecko:the-graph), including the current USD price for each requested token.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "query": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-token-price-lookup-defillama-5c437e65/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)