# BlockRun.AI Token Price History

> BlockRun.AI Token Price History is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-09-13).

Returns historical price data for a cryptocurrency token by symbol.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/market/price
- Price: $0.0075/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-4dd6f45b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pSitMqM9R7znaSTPv66F3

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-4dd6f45b
```

Example prompt: Pull the price history for ETH from BlockRun so I can see how its value has changed over time.

## When to prefer this

Use this endpoint when you need historical price data for a specific cryptocurrency token identified by its ticker symbol, especially within the BlockRun.AI ecosystem where other related market data (OHLCV, Fear & Greed, DeFi TVL) is also available. Prefer this over full OHLCV if you only need price (not open/high/low/volume) history.

## Known failure modes

- Invalid or unrecognized token symbol returns error
- Missing required symbol parameter returns 400 bad request
- Payment of 0.001 USDC not processed results in 402 payment required
- Token with no price history returns empty dataset
- Network timeout or upstream data unavailability

## How this service works

Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.

## Output

Returns a time series of historical price data for the specified token symbol, including price points over historical intervals.

## Example request

```json
{
 "symbol": "ETH"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "symbol": {
   "type": "string",
   "description": "Required query param"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-4dd6f45b/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)