# x402-gateway: backlinks_overview

> x402-gateway: backlinks_overview is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-30).

Retrieves a backlinks overview for a domain, showing who links to it and key link metrics

## Facts

- Endpoint: POST https://x402.freeq.one/market/bazaar/tools/backlinks_overview?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-gateway-backlinks-overview-e4004f32
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Zpgsc2TflHFgBa8VkktMY

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 x402-gateway-backlinks-overview-e4004f32 -d '<json body>'
```

Example prompt: Can you pull up the backlinks overview for example.com — I want to see how many referring domains and inbound links it has?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call backlinks overview without a subscription to a full SEO platform. Ideal for agents that need on-demand link profile data for arbitrary domains, especially in workflows involving competitor research, SEO audits, or link-building prospecting.

## Known failure modes

- Domain not found or unrecognized — returns empty or null result
- Invalid or missing tool parameter — returns 400 error
- Payment failure via x402 protocol — call not executed
- Rate limiting or quota exceeded — returns 429 or payment error
- Requested domain has no indexed backlink data — returns zero-count result

## How this service works

x402-gateway tool: backlinks_overview (market: bazaar)

## Output

Returns a summary of the backlink profile for the queried domain, including total backlink count, number of referring domains, anchor text breakdown, and key link quality or authority indicators.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tool": {
   "type": "string",
   "description": "Tool name (see GET /tools for the catalog)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-gateway-backlinks-overview-e4004f32/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.freeq.one](https://www.zero.xyz/host/x402.freeq.one/llms.txt)