Apify builder
Larry Johnson I build data products for prediction markets — Polymarket & Kalshi analytics, whale tracking, and trader intelligence.
Leaderboard position
out of 10,354
New actors
#574
Total actors
#1,016
↑ +48
Monthly users
#1,383
↑ +126
Total users
#1,827
↓ -6
Monthly runs
#1,952
↓ -75
Total runs
#2,496
↓ -410
Portfolio stats
New actors
11
Total actors
18
↑ +7
Monthly users
22
↑ +10
Total users
83
↑ +22
Monthly runs
323
↑ +118
Total runs
1,214
↓ -8
New actors
Each bar shows one day in the last 30 days.
Portfolio concentration
11 of 18 actors cover 80%+ of monthly users.
Polymarket trader leaderboard by P&L or volume, per category and time window — enriched with live positions, verified open P&L, cross-window consistency, and activity stats for copy-trading research.
18%
users
A scored, deduplicated feed of forced-liquidation events on Hyperliquid perps: coin, side liquidated, total notional, mark price, liquidated wallet, and a cascade flag, with open-interest and funding context. Aggregated per liquidation (not per fill) and billed only for new events. No API key.
14%
users
Translate thousands of texts into 50 languages with open-source neural machine translation (Argos Translate / OPUS models) running inside the Actor. No third-party API key, no per-character API bill, texts never leave the run. Translate one text into many languages at once.
9%
users
Watch any list of public pages on a schedule and get the ACTUAL changed lines, not just a ping. Detects edits, removals, and pages going 404. Failed fetches are never billed. No JavaScript rendering — honest about that.
9%
users
Decode QR codes, Data Matrix, PDF417, Aztec, EAN/UPC, Code 128 and more from images in bulk, or generate thousands of PNG/SVG barcodes and QR codes from a list. Offline zxing-cpp engine, no API key. Pay only for codes found or generated.
5%
users
Crawl your own website and find every broken link: 404 and other 4xx errors, 5xx server errors, timeouts, redirect chains and loops, plus dead external links, with the page each one was found on and its anchor text. Respects robots.txt and Crawl-delay. CSV report included.
5%
users
Check thousands of domains at once: registrar, creation and expiry dates, days until expiry, status, nameservers and DNSSEC from official RDAP (the modern WHOIS), plus A/AAAA/MX/NS/TXT/CAA records and SPF/DMARC presence. No contact/personal data is collected.
5%
users
Extract text from images in bulk with open-source Tesseract OCR: PNG, JPG, WEBP, TIFF, GIF, BMP. Returns plain text, average confidence and optional word-level bounding boxes. 10 languages. Images are processed inside the run and not stored.
5%
users
Convert PDFs to clean text and Markdown in bulk: headings, bullet lists and tables as Markdown pipe tables, with automatic OCR for scanned pages (7 languages). Ideal for RAG/LLM pipelines, search indexing and data entry. Pay per page; failed files are free.
5%
users
Validate, normalize and enrich phone numbers in bulk: E.164 / international / national format, valid or possible, line type (mobile, landline, VoIP, toll-free), country, region and time zones. Uses Google's libphonenumber metadata; numbers never leave the run.
5%
users
MCP server for AI agents (Claude, Cursor, n8n, Make): search Polymarket markets, live prices, unusual-activity-scored whale trades, trader leaderboards, wallet P&L. Pay per tool call, no API keys.
5%
users
ActorHunt MCP
ActorHunt gives paid members MCP access to keyword data, actor evidence, and Store movement for deciding what to build next.
