# Monid SEO Metrics API (x402 Pay-Per-Call)

> Monid SEO Metrics API (x402 Pay-Per-Call) is a paid API for AI agents from x402-proxy.monid.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Returns SEO metrics for a domain including backlinks, organic traffic, and domain authority, gated behind a $0.15 USDC micropayment per call.

## Facts

- Endpoint: GET https://x402-proxy.monid.workers.dev/api/seo/:domain
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/monid-seo-metrics-api-x402-pay-per-call-78ff233f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O6mxezmtsi8yz5naUiych

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 monid-seo-metrics-api-x402-pay-per-call-78ff233f
```

Example prompt: What are the SEO metrics for shopify.com — can you pull the backlinks, organic traffic, and domain authority?

## When to prefer this

Prefer this endpoint when you need quick, per-call SEO intelligence without a subscription — especially useful for agents doing one-off domain lookups, acquisition screening, or competitive snapshots. Best when cost-per-call economics ($0.15 USDC) are acceptable and you want USDC micropayment billing via x402 on Base rather than a monthly API subscription.

## Known failure modes

- Payment not received or insufficient USDC balance — returns HTTP 402 with payment required details
- Invalid or malformed domain string — returns an error response
- Domain not found in Monid's index — may return zeroes or empty metrics
- Network timeout connecting to upstream Monid data source
- Rate limiting if too many requests are made in quick succession

## How this service works

Pay-per-call API proxy reselling Monid tools via x402 payments on Base. Each endpoint requires a USDC micropayment before returning data.

## Output

Returns a JSON object with the queried domain name, its total backlink count, estimated monthly organic traffic, and domain authority score (0–100 scale).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "domain": {
      "type": "string",
      "description": "Domain name"
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "domain": {
       "type": "string"
      },
      "backlinks": {
       "type": "number"
      },
      "organicTraffic": {
       "type": "number"
      },
      "domainAuthority": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "domain": "example.com",
  "backlinks": 1200,
  "organicTraffic": 8500,
  "domainAuthority": 45
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/monid-seo-metrics-api-x402-pay-per-call-78ff233f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-proxy.monid.workers.dev](https://www.zero.xyz/host/x402-proxy.monid.workers.dev/llms.txt)