Your deposited credits never expire — they stay in your account until used, with no monthly fees. Promotional bonus credits (for example from a coupon match or bonus offer) expire 30 days after they are granted; only the bonus portion expires, never your deposited balance. Spending always draws from bonus credits first, so they are used before they lapse.

What's included with the Scale tier?

Scale tier (single deposit of $500+) gives you 20× off all endpoints, top queue priority, and dedicated support. Rate limits scale with your live credit balance: a $500+ balance starts at 100 concurrent and scales toward unlimited (500→unlimited/min, 5,000→unlimited/hr, 30,000→unlimited/day) — published figures are standard allocations, not caps; higher custom limits are provided on request. Web drops to $0.03/10K Pages (1 search returns up to 10 pages), News to $0.01/1K Queries, Images to $0.15/1K Queries.

Pricing — Cheapest SERP API from $0.03/10K, AI Rank from $1.22/1K

Name: Serpent API
Brand: Serpent API
Price: 0.03 USD
Availability: InStock

Same flat pricing across all 4 engines — pick a tab to see how that engine is billed.

Endpoint	Default	Growth 10× off — $100+ deposit	Scale 20× off — $500+ deposit
Google SERP Per 10K Pages · 1 query returns up to 10 pages (~100 results with PAA · AIO · Featured Snippets)	$0.60 /10K Pages	$0.06 /10K Pages	$0.03 /10K Pages
News Search Per 1K Search Queries · All engines	$0.20 /1K Queries	$0.02 /1K Queries	$0.01 /1K Queries
Image Search Per 1K Search Queries · All engines	$3.00 /1K Queries	$0.30 /1K Queries	$0.15 /1K Queries
Video Search Per 1K Search Queries · All engines	$0.30 /1K Queries	$0.03 /1K Queries	$0.015 /1K Queries

Google SERP covers all four engines: Google · Bing · Yahoo · DuckDuckGo. Flat per-call pricing on a $10+ balance — 1 query returns up to 10 pages. At Scale, $0.03 buys 10K pages.

Failed requests (server errors) are automatically refunded

10 free Google SERP searches for every new account

Growth (10× off) unlocks with a single $100+ deposit. Scale (20× off) with a single $500+ deposit. Multiple smaller top-ups do not stack.

Same flat single-LLM pricing across all 4 models — pick a tab to see that model's rate.

Endpoint	Default	Growth 10× off — $100+ deposit	Scale 20× off — $500+ deposit
AI Ranking — Single LLM Per 1K Search Queries · Claude · ChatGPT · Gemini · Perplexity	$20.00 /1K Queries	$2.00 /1K Queries	$1.00 /1K Queries
AI Ranking — All 4 Combined Per 1K Search Queries · Single call across all LLMs	$40.00 /1K Queries	$4.00 /1K Queries	$2.00 /1K Queries

Check if your brand or keyword is mentioned in AI-generated answers

"All 4 Combined" queries each LLM in a single API call — paid only, not free-tier eligible

Endpoint	Default	Growth 10× off — $100+ deposit	Scale 20× off — $500+ deposit
YouTube Per 1K Search Queries · Search · Video · Channel · Playlist	$0.20 /1K Queries	$0.02 /1K Queries	$0.01 /1K Queries
Instagram Profile Per 1K Profile Lookups	$1.00 /1K Lookups	$0.10 /1K Lookups	$0.05 /1K Lookups

Real-time data, not cached results

Structured JSON response for easy integration

Deposit More, Pay Less

Two simple thresholds. Permanent discounts. No subscriptions.

Default

$10 min balance

Flat per-call pricing — 1 call returns up to 10 pages — while your balance stays $10+. Below $10, billed per page.

Google SERP $0.60/10K Pages · News $0.20/1K Queries · Images $3.00/1K Queries
10 free Google SERPs to try
3 concurrent · 20/min · 200/hr · 1,000/day
Standard SERP response speed
Community support

Start Free

10× Off · Most Popular

Growth

$100+ one-time deposit

Best for growing projects. 10× cheaper, forever. Top-ups accumulate.

Google SERP $0.06/10K Pages · News $0.02/1K Queries · Images $0.30/1K Queries
10 → unlimited concurrent · 100 → unlimited/min · 1,000 → unlimited/hr · 8,000 → unlimited/day
Faster SERP responses
Priority queue access
Email support

Deposit $100

20× Off · Best Value

Scale

$500+ one-time deposit

Maximum savings. 20× cheaper. Top-ups accumulate. Includes dedicated support.

Google SERP $0.03/10K Pages · News $0.01/1K Queries · Images $0.15/1K Queries
100 → unlimited concurrent · 500 → unlimited/min · 5,000 → unlimited/hr · 30,000 → unlimited/day
Highest queue priority
Dedicated support

Deposit $500

Need higher rate limits?

The numbers above are standard defaults. If your workload needs more — higher concurrency or higher /min, /hour, /day allocations — we'll provision a custom limit on your account, usually within one business day.

Why Developers Choose Us

Built for reliability, priced for accessibility

10 Free Web Searches

Every new account gets 10 free Google SERP searches on any engine to try the API. News, Images, Videos, Social, and AI Ranking require paid credits from call 1.

Pay As You Go

No subscriptions or recurring charges. Deposit credits and use them whenever you need.

Automatic Refunds

Failed searches (server errors) are refunded instantly to your account. You only pay for results.

Engine-Specific Pricing

Pay only for what you use. All web engines (Google / Yahoo / Bing / DDG) from $0.03/10K pages at the Scale tier — flat rate per call on a $10+ balance (below $10, billed per page).

Real-Time Results

Live search data scraped on demand. No stale caches or outdated results.

99.9% Uptime

Enterprise-grade infrastructure on Google Cloud Run with automatic scaling.

Frequently Asked Questions

Everything you need to know about our pricing

How does billing work?

Serpent API uses a pay-as-you-go credit system. Deposit funds into your account and credits are deducted per API call based on the engine and endpoint used. No subscriptions or recurring charges. Your deposited credits never expire (promotional bonus credits expire 30 days after they're granted — see below).

What's the minimum deposit?

For new users, the minimum to get started is $10. Once your lifetime deposits reach $50, the minimum for any further top-up is $100 — so established accounts add credits in larger blocks. A single $100 deposit unlocks Growth (10× off, forever) and a single $500 deposit unlocks Scale (20× off), so the larger minimum lines up with the tier thresholds.

What payment methods do you accept?

We accept all major credit and debit cards (Visa, Mastercard, American Express) through our secure payment partner Dodo Payments. All transactions are SSL encrypted and processed securely.

Do credits expire?

Your deposited credits never expire — once added, they stay in your account until used, with no monthly fees or maintenance charges. Promotional bonus credits (for example the extra credits from a coupon match or bonus offer) expire 30 days after they're granted. Only that bonus portion expires — your deposited balance always remains. When you make API calls, spending draws from your bonus credits first, so they're used before they lapse. Your billing dashboard shows your deposit and bonus balances separately, along with the bonus expiry date.

What happens if a search fails?

If a search fails due to a server error, your credits are automatically refunded to your account instantly. You only pay for requests that complete successfully.

Can I get a refund?

Unused credits can be refunded within 30 days of deposit. Failed searches are automatically refunded. For refund requests, contact us at info@apiserpent.com or visit our Refund Policy page.

What is the Enterprise plan?

The Enterprise plan is designed for large-scale operations that need custom volume pricing, unlimited rate limits, dedicated support, and SLA guarantees. Contact us at info@apiserpent.com to discuss your requirements.

Ready to Get Started?

Join thousands of developers using Serpent API. Start with 10 free Google SERP searches today.