# StableProducts Channel3 Similar Products

> StableProducts Channel3 Similar Products 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).

Finds products similar to a given product ID from the Channel3 catalog, with filtering and localization options.

## Facts

- Endpoint: POST https://stableproduct.dev/api/channel3/similar
- 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/stableproducts-channel3-similar-products-58ab6c0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_d-FRToifgp_9KHl1IrbDt

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 stableproducts-channel3-similar-products-58ab6c0b -d '<json body>'
```

Example prompt: Find me up to 10 products similar to product ID 'abc123' from Channel3, filtered to new condition and in stock, priced between $20 and $100, for the US market in USD.

## When to prefer this

Use this endpoint when you have a specific Channel3 product ID and need to surface similar or alternative products, especially when you need fine-grained filtering by price, brand, category, condition, availability, age group, or geography. Prefer this over a general search when the similarity anchor is a known product rather than a free-text query.

## Known failure modes

- Invalid or unknown product_id returns empty results or an error
- Unsupported country/currency/language combination may return an error
- limit out of range (below 1 or above 30) causes a validation error
- Invalid filter values (e.g. unknown brand_id or category_id) may return empty or unfiltered results
- Payment failure via x402 protocol blocks the request
- Rate limiting or quota exceeded may return a 429 error

## How this service works

Product catalog APIs powered by x402.

## Output

A paginated list of products similar to the specified product ID, each with catalog details such as name, price, availability, brand, and category, localized to the requested country and currency. A page_token is returned when more results are available.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 30,
   "minimum": 1
  },
  "config": {
   "type": "object",
   "default": {},
   "properties": {
    "country": {
     "anyOf": [
      {
       "enum": [
        "US",
        "GB",
        "EU",
        "AU",
        "CA",
        "IE",
        "DE",
        "AT",
        "FR",
        "BE",
        "IT",
        "ES",
        "NL",
        "SE",
        "FI",
        "PT",
        "CZ"
       ],
       "type": "string"
      },
      {
       "type": "null"
      }
     ]
    },
    "currency": {
     "anyOf": [
      {
       "enum": [
        "USD",
        "CAD",
        "AUD",
        "GBP",
        "EUR",
        "SEK",
        "CZK"
       ],
       "type": "string"
      },
      {
       "type": "null"
      }
     ]
    },
    "language": {
     "anyOf": [
      {
       "enum": [
        "en",
        "de",
        "fr",
        "it",
        "es",
        "nl",
        "sv",
        "fi",
        "pt",
        "cs"
       ],
       "type": "string"
      },
      {
       "type": "null"
      }
     ]
    }
   },
   "additionalProperties": false
  },
  "filters": {
   "type": "object",
   "default": {},
   "properties": {
    "age": {
     "anyOf": [
      {
       "type": "array",
       "items": {
        "enum": [
         "newborn",
         "infant",
         "toddler",
         "kids",
         "adult"
        ],
        "type": "string"
       }
      },
      {
       "type": "null"
      }
     ]
    },
    "price": {
     "anyOf": [
      {
       "type": "object",
       "properties": {
        "max_price": {
         "anyOf": [
          {
           "type": "number"
          },
          {
           "type": "null"
          }
         ]
        },
        "min_price": {
         "anyOf": [
          {
           "type": "number"
          },
          {
           "type": "null"
          }
         ]
        }
       },
       "additionalProperties": false
      },
      {
       "type": "null"
      }
     ]
    },
    "gender": {
     "anyOf": [
      {
       "enum": [
        "male",
        "female"
       ],
       "type": "string"
      },
      {
       "type": "null"
      }
     ]
    },
    "brand_ids": {
     "anyOf": [
      {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      {
       "type": "null"
      }
     ]
    },
    "condition": {
     "anyOf": [
      {
       
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stableproducts-channel3-similar-products-58ab6c0b/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)