Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
#1Apify records 4,147,762 monthly visits with +3.9% month-over-month growth and Freemium, Contact for Pricing pricing. Arize AI records 249,028 monthly visits with +3.2% growth and Paid, Contact for Pricing pricing.

Agent observability, evaluation, and continuous improvement for production AI
| +156.83K (+3.9%) |
| +7.67K (+3.2%) |
| Primary Market & Share | 🇺🇸 United States (22.2%) | 🇺🇸 United States (51.6%) |
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| Direct Visits / mo | 1.82M | 107.84K |
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| User Rating | 4.6 | 4.6 |
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| Supported Platforms | Website | Website |
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Run thousands of ready-made web scrapers and AI agents from one cloud platform
Over one hundred thousand ready-to-run scrapers and automation tools covering social media, maps, e-commerce, real estate, and general web crawling.
Connect Apify Actors directly to AI assistants and agents so they can search the store, run scrapers, and pull structured results as tool calls.
Managed proxy rotation and unblocking are built into the platform, so scrapers keep working when target sites add defenses.
An open-source crawling library plus Python and JavaScript SDKs for building custom Actors with Playwright, Puppeteer, Selenium, or Cheerio.

Agent observability, evaluation, and continuous improvement for production AI
Capture spans, traces, and sessions across agents and LLM calls using OpenInference conventions built on OpenTelemetry, so instrumentation stays portable.
Run evaluations at span, trace, and session level to grade retrieval quality, tool use, and final answers across large production datasets.
An in-product agent that inspects traces, diagnoses likely root causes, and proposes fixes that engineers can review before shipping.
Self-host the leading open-source tracing and eval tool when you need to keep trace data inside your own infrastructure.
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
#1Free / Open-sourceProvides direct LLM-ready markdown conversion via API, but lacks Apify's massive marketplace of pre-built scraping actors.
#2SpecialistBuild GTM systems that turn data into revenue


Offers enterprise-grade proxy networks and raw web data infrastructure, but lacks Apify's plug-and-play actor marketplace.
SpecialistAutomates complex business workflows with AI agents, but is less specialized for raw large-scale web scraping actors.

Excels at experiment tracking and model registry workflows, but is less purpose-built for real-time LLM production observability.

SpecialistFocuses heavily on pre-built social media automation and lead generation workflows rather than general web scraping.
Uses visual point-and-click scraping workflows instead of Apify's developer-centric actor ecosystem and cloud execution.

Free / Open-sourceIncludes integrated guardrails and simulation tools, but is less mature for large-scale enterprise production telemetry monitoring.

Free / Open-sourceFeatures strong testing and prompt evaluation tools, though its monitoring interface is less oriented towards massive telemetry streams.

SpecialistEnables autonomous cloud scraping pipelines via AI agents, but lacks Apify's mature community actor marketplace.

Focuses heavily on prompt management and versioning control, whereas Arize prioritizes end-to-end tracing and ML observability.
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Free / Open-sourceProvides direct LLM-ready markdown conversion via API, but lacks Apify's massive marketplace of pre-built scraping actors.
Offers enterprise-grade proxy networks and raw web data infrastructure, but lacks Apify's plug-and-play actor marketplace.
SpecialistAutomates complex business workflows with AI agents, but is less specialized for raw large-scale web scraping actors.
Excels at experiment tracking and model registry workflows, but is less purpose-built for real-time LLM production observability.
SpecialistFocuses heavily on pre-built social media automation and lead generation workflows rather than general web scraping.
Uses visual point-and-click scraping workflows instead of Apify's developer-centric actor ecosystem and cloud execution.
Free / Open-sourceIncludes integrated guardrails and simulation tools, but is less mature for large-scale enterprise production telemetry monitoring.
Free / Open-sourceFeatures strong testing and prompt evaluation tools, though its monitoring interface is less oriented towards massive telemetry streams.
SpecialistEnables autonomous cloud scraping pipelines via AI agents, but lacks Apify's mature community actor marketplace.
Focuses heavily on prompt management and versioning control, whereas Arize prioritizes end-to-end tracing and ML observability.