OpenSERP vs Serpstack

OpenSERP8.8Visit Serpstack8.6Visit

Higher score OpenSERP #5 in SERP APIs 8.8/10 Free plan Free plan✓ 1 of 1 features Visit OpenSERP

vs

Serpstack #7 in SERP APIs 8.6/10 Free plan Free plan✓ 1 of 1 features Visit Serpstack

• OpenSERP fits best

  Open-source and self-hosted deployments

• Serpstack fits best

  Affordable Google SERP API adoption

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Side by side

Feature	OpenSERP 8.8/10 Visit ↗	Serpstack 8.6/10 Visit ↗
At a glance
Editor score	8.8	8.6
Ranking	#5 in SERP APIs	#7 in SERP APIs
Best for	Open-source and self-hosted deployments	Affordable Google SERP API adoption
Pricing model	Free plan + paid	Free plan + paid
Starting price	$0.009/unit usage-based	$26.99/mo
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web, Linux, Windows, macOS	Web
Support	Email, Community	Email, Docs
Built for	Solo, Small business, Mid-market	Solo, Small business, Mid-market, Enterprise
Features OpenSERP 1/1 · Serpstack 1/1
Proxy handling	✓	✓
Specs
Search engine coverage	Multi-engine	Single-engine
SERP types	Organic	Mixed
Location targeting	City	City
Output formats	Json	Not checked yet
Requests included	Not checked yet	5000 requests/mo
Our review
Pros	Self-hosted MIT-licensed option with no API key required Six search engines with deduplication and broad SERP filters REST, CLI, SDK, MCP server, and n8n integration options	Free tier with 100 monthly searches and non-commercial use Targets location, language, device, and multiple Google result types Returns JSON or CSV through a REST API over HTTP GET
Cons	Self-hosting requires your own infrastructure Cloud usage is billed per credit rather than by subscription Advanced scheduling and AI reports are available in Cloud	Focused on Google search rather than multiple search engines Free plan is limited to non-commercial use Usage quotas can lead to overage billing
Our verdict	OpenSERP is an open-source SERP API and command-line tool for developers, AI and research pipelines, SEO teams, agencies, and rank-monitoring workflows. It queries Google, Bing, Yandex, Baidu, DuckDuckGo, and Ecosia, returning structured… Read the review →	Serpstack is a cloud-based API for retrieving targeted Google search-engine-results-page data. It is designed for SEO agencies, marketing professionals, startups, small and midsize businesses, and larger companies that need automated… Read the review →

Strengths and trade-offs

• OpenSERP — where it wins

  • Self-hosted MIT-licensed option with no API key required
  • Six search engines with deduplication and broad SERP filters
  • REST, CLI, SDK, MCP server, and n8n integration options

  Where it doesn't

  • Self-hosting requires your own infrastructure
  • Cloud usage is billed per credit rather than by subscription
  • Advanced scheduling and AI reports are available in Cloud

• Serpstack — where it wins

  • Free tier with 100 monthly searches and non-commercial use
  • Targets location, language, device, and multiple Google result types
  • Returns JSON or CSV through a REST API over HTTP GET

  Where it doesn't

  • Focused on Google search rather than multiple search engines
  • Free plan is limited to non-commercial use
  • Usage quotas can lead to overage billing

• OpenSERP8.8/10 · Free plan

  A flexible SERP API for teams that want self-hosting or usage-based cloud access.

  Visit OpenSERPFull verdict →
• Serpstack8.6/10 · Free plan

  An affordable Google SERP API with broad result types, targeting, and a free tier.

  Visit SerpstackFull verdict →