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NEW APIOctober 13, 2026·New API

Rank tracking controls, backlink history, top pages, and web search for AI models

Three new SEO endpoints, rank-tracking controls on the Google SERP API, and live web search with sources on every chat model.

We have just shipped a batch of additions for teams building SEO products on the API: the Google SERP endpoint can now be pointed at a city and a device and told to stop at your domain, the backlink and domain APIs gained paging, filters, history and per-page breakdowns, and any AI chat model can now answer from a live web search and return its sources.

What's new

  • Google SERP: device, city-level location, coordinates, and stop_at_domain — billed only for the pages fetched
  • New endpoints: Backlink History, Top Linked Pages, Domain Top Pages
  • Backlinks and domain keywords: offset paging, sorting, and filters (dofollow, lost, broken, position, URL)
  • AI chat: webSearch on any model, with one sources list in the response
  • Lighthouse: mobile or desktop, with the failed audits

Rank tracking on the Google SERP API

`POST /v1/serp/google` now accepts `device` (desktop or mobile), a city or region `location_code`, a `location_name`, or `coordinates`. With `stop_at_domain` the search stops at the page where your domain appears and you are billed only for the pages fetched — a depth-50 check that finds the domain on page one costs $0.01 instead of $0.05. Every location code is searchable in the docs.

curl -X POST https://api.yepapi.com/v1/serp/google \
  -H "x-api-key: $YEPAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "stripe pricing",
    "depth": 50,
    "device": "mobile",
    "location_code": 1023191,
    "stop_at_domain": "stripe.com"
  }'

Backlinks and domain analysis

Backlink History returns one row per month with totals plus new and lost backlinks and referring domains. Top Linked Pages ranks a site's pages by the links pointing at each. Domain Top Pages ranks them by organic traffic, with keyword counts per URL. The existing list endpoints now take `offset`, `sort` and filters, return a `total`, and the backlink summary includes spam score, referring pages and broken-link counts. Keyword overview and related keywords can add clickstream volumes with `include_clickstream`.

Web search and sources on AI chat

Set `webSearch: true` on `POST /v1/ai/chat` and any model — OpenAI, Anthropic, Google, xAI — answers from a live web search. The pages it used come back in `data.sources` as `{ url, title }`, in the same place for every model including Perplexity Sonar, so you can run one prompt across several models and compare what each cites.

Read the docs

Request and response details for everything above.

Open the SEO API docs