kitio.aiAdded Nov 5, 2026
Serpex
FreemiumPay-as-you-go web search and extraction API for AI agents
What is Serpex?
Serpex returns real-time web search results as structured JSON and can extract any URL to clean markdown with the same API key. It is built for developers feeding live web data into AI apps, agents and retrieval pipelines.
Searches fall back automatically across sources, and extracted content is cleaned for ingestion into vector databases. SDKs and examples cover Python, JavaScript, MCP and LangChain, so it can be dropped into existing agent code.
Pricing is pay as you go with no subscription: credits never expire, failed requests are free, and the rate per search falls as the top-up grows. New accounts get 200 free credits without a card.
Features
- Real-time search API
- URL to markdown extraction
- Automatic source fallback
- Python and JS SDKs
- MCP and LangChain support
Tags
Releases
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Organization
Serpex
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
Serpex plans
Starter
$0.80 / 1K searches
- $5 to $49 top-ups
- 5 requests per second
Standard
$0.65 / 1K searches
- $50 to $499 top-ups
- 25 requests per second
Scale
$0.50 / 1K searches
- $500 to $1,999 top-ups
- 50 requests per second
Enterprise
Contact sales
- Custom pricing and SLAs
- From $0.20 per 1K at high volume
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Serpex site.Official pricing
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Pros and cons
Pros
- Low cost per search
- Credits never expire
- Search and extraction under one key
Cons
- Rate limits depend on top-up size
- Developer-only product
- Newer than established search APIs
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Q&A
What is Serpex?
Serpex returns real-time web search results as structured JSON and can extract any URL to clean markdown with the same API key. It is built for developers feeding live web data into AI apps, agents and retrieval pipelines.
Does Serpex charge for failed requests?
No. Failed requests are free, and one credit covers one search or one extracted URL.
Can I use Serpex with LangChain?
Yes. Serpex provides LangChain integrations for Python and JavaScript as well as an MCP server.
How much does Serpex cost?
Serpex is freemium.
Is there a free version of Serpex?
Yes. Serpex has a free plan, and paid plans add more usage and features.
What are the main features of Serpex?
Real-time search API, URL to markdown extraction, Automatic source fallback, Python and JS SDKs, MCP and LangChain support.
Who makes Serpex?
Serpex is made by Serpex.
What are the best alternatives to Serpex?
Popular alternatives include ContextWire, Exa, You.com.