Things To Do API vs Ha Tang

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Things To Do API compared with Ha Tang
Detail	Things To Do API	Ha Tang
What it does	Fast, accurate, localized events API for agentic applications	Sell, support and get paid in one place, with AI doing the repetitive part
Stage	Not given	Established
Founded	Not given	2015
Based in	US	VN
Pricing model	Freemium	Not given
Pricing	Free: 1,000 calls a month, 60 calls a minute. Pay as you go: first 1,000 calls a month free, then $5 per 1,000 calls for calls 1,001-100,000 a month, $3 per 1,000 calls after 100,000, $2 per 1,000 calls after 1 million a month, 300 calls a minute. Enterprise: custom pricing available.	Not given
Key features	REST API endpoints for event queries MCP protocol integration for AI agents Natural language event search Shows, concerts, pop-ups, markets and festivals data Rate limits of 60-300 calls per minute depending on plan	Unified inbox for Zalo, Facebook, Instagram, TikTok, WhatsApp, Telegram, X, LINE and website chat AI assistant that answers from custom knowledge and drafts orders Resend-compatible email API for custom domains VietQR bank transfer payments with automatic order matching Automated e-invoice (hóa đơn điện tử) generation MCP server for AI coding agents Webhook support for integrations
What makes it different	Query events in plain language like asking a friend Agent-ready with REST and MCP protocol support Free tier with 1,000 monthly calls requires no credit card	Built by engineers who use it in production across 25 countries Designed specifically for Vietnamese business needs including VietQR and e-invoices
Community votes	0	0
DR (Domain Rating by Ahrefs)	9 +2 (up) since last check	3 no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	28	15
Referring domains (Majestic)	65	3

4 details filled in for both companies.

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