SerpBase vs Serper.dev: 3 Details That Separate Two Cheap Google SERP APIs

#serpbase #serper #serpapi #serp

Verdict: Both compete in the same low-cost tier for Google SERP data. Real differences are in entry cost, endpoint structure, and credit expiration policy. Budget under $50 → SerpBase. Need 2,500 truly free queries and the lowest latency → Serper.dev.

Scorecard

Dimension	SerpBase	Serper.dev	Winner
Starter unit price ($3-$50 tier)	$0.30 / 1k	$1.00 / 1k (Starter)	SerpBase
Entry barrier	$3 / 10k	$50 / 50k	SerpBase
P50 latency	0.65s	~1.0–1.2s	SerpBase
Average latency	0.9s	~1.2s	SerpBase
Free tier	100 queries	2,500 queries	Serper.dev
Endpoint structure	6 dedicated endpoints	1 base + path variants	SerpBase
Credit expiration	Never expires	Not stated	SerpBase
MCP / AI tooling	serpbase-mcp, serpbase-skill	Community MCP wrappers	SerpBase

On pure "give me Google search results" capability, the two are nearly equivalent. The gap shows up in engineering experience and pricing structure.

Direct Conclusion

Scenario A: Solo developer, small team, side project → SerpBase. $3 entry, credits never expire, clean endpoint split.

Scenario B: Want 2,500 truly free queries for a full MVP validation → Serper.dev. Free tier is the best in the SERP API industry.

Scenario C: High-frequency calls + latency-sensitive. SerpBase's P50 0.65s wins slightly, and credit expiration policy is more transparent.

Neither is an absolute replacement for the other — they are two styles in the same tier.

3 Detail Differences That Matter

1. Entry Price Differs 16x

SerpBase cheapest: $3 Boost pack = 10,000 queries at $0.30/1k. Serper.dev Starter plan: $50 / 50,000 at $1.00/1k, which is 3.3x more expensive per request.

Serper.dev reaches $0.30/1k only on the Ultimate bulk plan (500k+ credits), which is unrealistic for small teams.

2. Endpoint Structure

SerpBase splits search into 6 dedicated endpoints:

/v1/search        # Web search
/v1/images        # Images
/v1/news          # News
/v1/videos        # Videos
/v1/maps/search   # Maps search
/v1/maps/detail   # Maps detail

Serper.dev uses path-based routing: /search, /images, /news, /places. Functionally equivalent, but SerpBase's split is cleaner for AI Agent tool-calling (one tool function per endpoint).

3. Credit Expiration Policy

SerpBase explicitly states: standard pack credits never expire. The $3 Boost entry pack has a 1-month validity, but standard packs are permanent.

Serper.dev's public docs do not state whether credits expire. Community feedback leans toward "unused credits accumulate," but this is not a commitment. If your project runs for 3 months, stops for 6 months, and resumes, SerpBase's policy is safer.

Where Serper.dev Actually Wins

To be fair, Serper.dev has its own strengths:

2,500 free queries: Best free tier in the industry, enough for a full MVP
Slightly lower latency: Community tests show 1.0–1.2s; SerpBase averages 0.9s — close, but Serper is steadier in some regions
Scholar / Patents endpoints: Academic search and patents are Serper-exclusive; SerpBase does not have them
Shots endpoint: Returns page screenshots (extra credits); SerpBase does not offer this

If your business is academic monitoring or you need SERP screenshots, Serper.dev is the better fit.

Migration Checklist (Serper.dev → SerpBase)

If you are already on Serper.dev and want to switch, the migration is straightforward:

Change base URL: https://google.serper.dev/ → https://api.serpbase.dev/
Update header: keep X-API-KEY style but use your SerpBase key
Adjust body: parameter structure is nearly identical (q, gl, hl, num)
Map paths: /search → /v1/search, /images → /v1/images, /news → /v1/news, /places → /v1/maps/search
Response differences: SerpBase uses different field names; remap keys like organicResults

Code-level migration usually takes 1–2 hours, mostly field renaming work.

Cost Comparison (100k queries / month)

Plan	SerpBase	Serper.dev
100k queries	$0.30/1k → $30	Starter $1.00/1k → $100
Mid-scale price gap	—	3.3x more expensive
500k / month	$150 (Growth pack)	$500 (full-price before Ultimate)

In the $50–$500 monthly budget range, SerpBase's cost advantage is overwhelming.

Who Should Pick Whom?

Your situation	Recommendation
Just starting a side project	SerpBase ($3 to try)
Want a full free MVP test	Serper.dev (2,500 queries)
1,000+ queries / day	SerpBase (unit price wins)
Need academic / patent search	Serper.dev (unique endpoints)
Need page screenshots	Serper.dev (Shots endpoint)
Credits may sit idle long-term	SerpBase (never expires)
AI Agent tool calling	SerpBase (cleaner endpoint split)
Already on Serper.dev	Check the cost table, then decide