APIs
Explore the APIs category for structured AI extraction, web data collection, and vision intelligence you can plug directly into agent workflows. Tools like LlamaParse, Hireability, Airparser, and Affinda turn messy resumes into clean structured data, while Firecrawl and Oxylabs Web Scraper API extract web content at scale for LLM-ready pipelines. You’ll also find APIs like Google Cloud Vision API and Amazon Rekognition API for image analysis, plus Jina AI Reader API for fast content extraction built for AI systems.
52 resources in APIs
Best AI Web Search and Answer APIs for Agents
For agent builders who need live web grounding, this comparison tests which APIs surface the right pages, current facts, usable page text, honest citations, and acceptable latency/cost when all tools are fed the same 52-query ground-truth set.
Jina
Rich web search results for agents, but this free-tier run was incomplete and not comparable.
You.com
Best-in-benchmark top-1 web retrieval for agent queries, with full-page text and published dates — but at a measured high all-in cost.
Vectorize.io
Managed RAG API with clean ingestion, OCR, and public pricing, but with caveats on refusals and freshness.
Vectara
Vectara gives you a grounded-answer API with strong refusals, but tables, contradictions, scans, and pricing are the weak spots.
Exa
Best live-web search API here for agents that need ranked results, long page text, and cited answers.
OpenAI web_search
A citation-honest control arm for live-web answering, but not a reliable retrieval layer for fresh content.
Valyu
Returns usable web text for agents, but the citation layer is too error-prone to trust.
Olostep
A search-only baseline with mid-pack retrieval, weak extraction, and no usable answer mode.
SerpAPI
Fast, zero-error live web search for agents, with stable mid-pack retrieval and snippet outputs.
Linkup
Standard mode is the usable tier: strong extraction, weak ranking; deep is slower, pricier, and weaker.
Serper
Fast, cheap raw web search for agents — strong on ambiguity, but too snippet-thin to replace a scrape.
Tavily
A web search API that returns full-page text well, but usually buries the best result.
Unstructured
Good for text-first PDF-to-Markdown workflows, but not for faithful tables, charts, or images.
HrFlow
HrFlow is an API-first resume parser that covers core fields well, but needs cleanup for phones, casing, and certifications.
AI for Database
Plain-English live database querying with inline SQL, charts, follow-ups, and cost visibility.
AssemblyAI (Universal)
Fast batch STT with strong metadata and mixed-language performance, but overlap-heavy meetings can drop too many words.
Extracta.ai
Schema-first resume parsing that stays lean and predictable across clean, multi-column, and messy PDFs.
Hireability
Strong resume-to-JSON parsing on standard and messy single-column PDFs, but two-column layouts can break the result schema.
Docparser
Template-based resume parsing that works on one fixed layout, but breaks on varied resumes.
pymupdf4llm
Open-source PDF-to-markdown for clean native PDFs, but unreliable on scans, dense tables, and images.
docling
Open-source PDF-to-markdown conversion that is strong on text, headings, and standard tables, but drops charts and other visual assets.
liteparse
Open-source PDF-to-markdown parsing that works well on native-digital reports, but degrades on scans, tables, and charts.
doc2mark
Open-source PDF-to-markdown that preserves native text and headings, but still struggles with tables, charts, images, and scans.