Search-as-infrastructure for developers: an API and SDKs for full-text search, AI-assisted relevance, and recommendations.
Free accessFree plan10,000 search requests and 50,000 records per month. 5,000 recommendations and 5,000 crawls per month. 1 application, 20 indices, and 1 GB of storage. No credit card required.
Paid fromGrow · 0.50 USD10,000 search requests and 100,000 records included
Documentation access for AI tools with repository, API, and team features.
Free accessFree planThere are 1,000 API calls per month for public repos. Once the limit is hit, there are 20 bonus calls per day instead of a full block.
Paid fromPro · $10Private repositories, team collaboration, 5,000 API calls per seat/month
Over 122,000 libraries indexed, 100M+ agent requests all time per the vendor
MCP server plus a CLI/skills for direct integration into coding agents
Cloud observability platform for engineering teams with infrastructure monitoring, APM, log management and AI-assisted features (Bits AI, Watchdog) for automated anomaly and root-cause analysis.
Free accessFree plan
Paid fromInfrastructure Monitoring Pro · 15 $15-month retention, 1,000+ integrations
Infrastructure monitoring free for up to 5 hosts with 1-day metric retention
Infrastructure Pro: 15-month metric retention and 1,000+ integrations
The AI layer of the Elastic Stack, with semantic search (ELSER), native vector search, RAG playground and AI Assistant; usage-based billing by compute, storage and inference tokens.
Free accessFree plan
Paid fromElastic Cloud Serverless (Search) · from 0.09 $ / VCU-Stunde (Search-Compute)Ingest compute from $0.14/VCU-hour, ML compute from $0.07/VCU-hour
Semantic search with ELSER and native vector search in the Elastic Stack
Retrieval-augmented generation (RAG) playground and AI Assistant
Web-scraping API that turns any URL into clean markdown or structured JSON, ready for AI models; handles JavaScript rendering, rate limiting and proxy rotation automatically.
Free accessFree plan
Paid fromHobby · 16 $5,000 credits/month
Web-scraping API turns URLs into clean Markdown or structured JSON
Crawl, Scrape, Map, Extract, and Actions as API endpoints
Developer-focused JSON-schema platform for forms, APIs and workflows with an open-source core; supplemented by a Universal Agent Gateway and MCP server as governance/development infrastructure for AI agents, not as generative AI inside the form builder itself.
Free accessFree trial
Paid fromForm.io SaaS · 300 USDHosted platform on portal.form.io
JSON-schema platform for forms, APIs and workflows
Google's mapping, routing and place-data APIs with growing AI integration: Gemini-powered place summaries, an agentic UI toolkit, and grounding that anchors AI answers in real map data.
Free accessFree plan
Paid fromStarter · 100 $50,000 calls/month included
Mapping, routing, and place data through Google application programming interfaces (APIs)
Gemini-powered place summaries and agentic UI toolkit
IT incident-management and on-call alerting platform with automatic alert correlation and generative AI (PagerDuty Advance) for summaries and assistance in the incident workflow.
Free accessFree plan
Paid fromProfessional · 25 $ / 21 $All Free features plus additional on-call schedules and escalation policies
Automatic alert correlation reduces alert fatigue for on-call teams
On-call schedules with configurable escalation policies
Recombee is an AI recommendation engine offered as an API service: developers integrate personalized product recommendations via REST API or SDK into their applications.
AI API that reads technical drawings (PDF/image) automatically and returns dimensions, tolerances, GD&T, threads and title-block data as structured JSON for ERP, PLM and quoting systems.
Free accessFree trial
Paid fromPay-as-you-go · 1.25 €Full production access from day one
Read technical drawings (PDF/image) and return dimensions, tolerances, GD&T, threads and title-block data as structured JSON
Alphabetical order. This is not a quality ranking.
Comparison criteria
We compare free access, paid entry, plan limits, features and the listed official sources. Unsourced figures stay marked as not published.
Methodology
Only confirmed entries appear in the catalog. Prices, plans and limits come from listed official vendor pages. Missing figures stay marked as not published. Search results are ordered by Task match by default; category and task lists are alphabetical. Both can be switched to Free access first; neither is a quality ranking. The vendor page always wins.
Is this a ranking?
No. Search results are ordered by Task match by default; category and task lists are alphabetical. Both can be switched to Free access first. We do not award stars or a test winner.
What does "free access" mean for the listed tools?
Free access can mean a permanently free plan, a time-limited trial, or a one-off starting credit with no card required. The exact type is stated on each tool's own page.
How many of the listed tools offer free access?
29 of 31 listed tools offer free access - a permanent plan, a trial, or a no-card credit.
How do I see tools with free access first?
Use the “Free access first” toggle above the list to see tools with free access first.
