The Cheapest Perplexity Rank Tracking API for Developers

# The Perplexity answer for a keyword, with every source it cited
curl "https://apiserpent.com/api/ai/rank/perplexity?q=best+password+manager" \
  -H "X-API-Key: YOUR_API_KEY"

# Track a domain: position, match type and the score come back filled in
curl -G "https://apiserpent.com/api/ai/rank/perplexity" \
  --data-urlencode "q=best password manager" \
  -d "domain=1password.com" -d "prompt_type=brand" \
  -H "X-API-Key: YOUR_API_KEY"

# pip install requests
import requests

resp = requests.get(
    "https://apiserpent.com/api/ai/rank/perplexity",
    params={"q": "best password manager", "domain": "1password.com"},
    headers={"X-API-Key": "YOUR_API_KEY"},
    timeout=60,
)
row = resp.json()["results"]["perplexity"]

print(row["target_position"], "of", row["total_citations"])
for c in row["citations"]:
    print(c["position"], c["domain"], c["cited_text"][:80])

// Node 18+ — fetch is built in. Allow a generous timeout.
const qs = new URLSearchParams({
  q: 'best password manager',
  domain: '1password.com'
});

const res = await fetch('https://apiserpent.com/api/ai/rank/perplexity?' + qs, {
  headers: { 'X-API-Key': process.env.SERPENT_KEY },
  signal: AbortSignal.timeout(60000)
});
const { results, aggregate } = await res.json();

console.log(results.perplexity.target_position, aggregate.visibility_score);
console.log(aggregate.all_domains_cited.join(', '));

{
  "success": true,
  "run_id": "b48e21f7-6c05-4a3d-8f11-90d7c2ea5533",
  "keyword": "best password manager",
  "target_domain": "1password.com",
  "results": {
    "perplexity": {
      "llm": "perplexity",
      "model": "sonar-pro",
      "citations": [
        {
          "position": 1,
          "url": "https://1password.com/pricing",
          "title": "1Password Pricing",
          "cited_text": "...family plans cover five people on one subscription [1]",
          "url_normalized": "1password.com/pricing",
          "domain": "1password.com"
        },
        {
          "position": 2,
          "url": "https://example.com/password-managers-tested",
          "title": "We Tested 9 Password Managers",
          "cited_text": "...autofill reliability is where most of them differ [2]",
          "url_normalized": "example.com/password-managers-tested",
          "domain": "example.com"
        }
      ],
      "target_found": true,
      "target_position": 1,
      "target_match_type": "exact",
      "target_matched_domain": "1password.com",
      "total_citations": 12,
      "response_text": "For most people the choice comes down to autofill and sharing...",
      "error": null
    }
  },
  "aggregate": {
    "visibility_score": 25,
    "found_in": ["perplexity"],
    "best_position": { "engine": "perplexity", "position": 1 },
    "all_domains_cited": ["1password.com", "example.com"],
    "total_latency_ms": 13350
  },
  "meta": { "elapsed": "13380ms", "timestamp": "2026-09-08T10:00:00.000Z" }
}

# One line per keyword: date, keyword, our position, total citations in the answer.
DOMAIN="example.com"

while IFS= read -r kw; do
  curl -s -G "https://apiserpent.com/api/ai/rank/perplexity" \
      --data-urlencode "q=$kw" \
      -d "domain=$DOMAIN" \
      -H "X-API-Key: $SERPENT_KEY" \
    | jq -r --arg d "$(date -u +%F)" --arg k "$kw" \
        '[$d, $k, (.results.perplexity.target_position // 0),
           .results.perplexity.total_citations] | @csv' \
    >> perplexity-citations.csv
done < keywords.txt