# Channel3 Product Price History

> Channel3 Product Price History is a paid API for AI agents from stableproduct.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Retrieves historical price data for a canonical Channel3 product over a specified number of days.

## Facts

- Endpoint: GET https://stableproduct.dev/api/channel3/price-tracking/history
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stableproduct-dev-487fadd4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nZAdIYbWPweMa_F8iu_LA

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 stableproduct-dev-487fadd4
```

Example prompt: Can you pull up the Channel3 price history for product ID 'prod_abc123' over the last 30 days so I can see how its price has changed?

## When to prefer this

Use this endpoint when you need to retrieve historical price data for a specific product identified by its canonical Channel3 product ID. Ideal for price trend analysis, deal detection, or monitoring price changes over time. Prefer this over current-price endpoints when temporal pricing data is needed.

## Known failure modes

- Missing or empty canonical_product_id returns a 400 validation error
- Product ID not found in Channel3 returns a 404 not found error
- days parameter outside 1-30 range returns a 400 validation error
- Payment not provided or insufficient returns a 402 payment required error
- Channel3 upstream unavailable returns a 502 or 503 error
- Stale or incomplete data if Channel3 has gaps in price tracking history

## How this service works

Get Channel3 price history for a canonical product.

## Output

Returns a time-series of historical price data points for the specified canonical product, covering up to 30 days. May include raw pricing data if requested. Useful for identifying price trends, drops, or spikes over time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stableproduct-dev-487fadd4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stableproduct.dev](https://www.zero.xyz/host/stableproduct.dev/llms.txt)