Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
OpenRouter records 19,941,437 monthly visits with -6.2% month-over-month growth and Paid pricing. Serpex records 2,405 monthly visits with -34.3% growth and Freemium, Free Trial, Paid pricing.
Affordable real-time search API that returns structured JSON plus page content in a single call.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | openrouter.ai | serpex.dev |
| Pricing Model | Paid | Freemium, Free Trial, Paid |
| Monthly Visits | 19.94M (19,941,437) | 2.41K (2,405) |
| MoM Traffic Delta | -1.33M (-6.2%) | -1.26K (-34.3%) |
| Primary Market & Share | 🇺🇸 United States (16.1%) | 🇮🇳 India (91.3%) |
| Direct Visits / mo | 11.96M | 936 |
| User Rating | 4.8 | 4.3 |
| Supported Platforms | Website | Website |
One API key for hundreds of AI models from every major provider
Six hundred plus models for text, image, video, audio, transcription, embeddings, and reranking behind one OpenAI-compatible API.
Requests are rerouted to another provider on outages or rate limits by default, so you don't write custom retry logic.
The auto-router selects a model and provider per request using live marketplace performance and pricing data.
Track spend, tokens, and usage per model, provider, and team member in one place, including bring-your-own-key usage.
Affordable real-time search API that returns structured JSON plus page content in a single call.
Send a query and receive live web results as clean, structured JSON that is ready for parsing, ranking or feeding into a model.
Convert any URL into clean, readable markdown in the same API key, removing boilerplate so retrieved text is directly usable for RAG and summarization.
Requests are routed across multiple underlying search sources with health monitoring and automatic retries, so a single empty source does not break your pipeline.
Official libraries and snippets for Python, JavaScript, MCP and LangChain make it a few lines of code to add live search to an agent or app.
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content

Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.

One API key for agent-grade web search, fetch, browsing and automation

Web search API and crawler built for AI agents
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.

Real-time search engine scraping API with structured JSON, HTML, or Markdown output
Real-time search engine scraping API with structured JSON, HTML, or Markdown output
SpecialistDelivers exceptional inference speed and high-throughput performance for open models, but focuses primarily on hosted weights rather than multi-provider aggregation.

Free / Open-sourceProvides self-hosted and Python SDK control over 100+ LLMs, but requires setting up your own infrastructure.

SpecialistLow-cost serverless inference APIs for 200+ open models

One unified API for 100+ AI models, with insurance when output disappoints
One unified API for 100+ AI models, with insurance when output disappoints

Search foundation built from embeddings, rerankers, and reader APIs
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models