FAQ
Everything you need to know.
Greetu is a free greeting card app with AI messages, media embedding, voice recording, photo uploads, time capsules, emoji reactions, global leaderboard, and full API + MCP support for developers and agents.
What is Greetu.io?
Greetu.io is a free greeting card platform that lets you create beautiful, personalized cards in under 60 seconds. Add YouTube videos, TikToks, Spotify tracks, voice messages, photos, and AI-written messages. Share via link — no app download needed.
Is Greetu free to use?
Yes. Anyone can create and send unlimited greeting cards for free. No signup required. Developers and agents get free API credits: 20 credits for instant anonymous signup, 50 credits with email.
Can I add YouTube, TikTok or Spotify to my card?
Yes! You can embed one media platform per card. Paste a YouTube video link, TikTok link, or Spotify track/album/playlist link. The media plays directly on the card view page — recipients don't need to leave the card.
How do voice messages work?
On the create page, tap the microphone icon and record up to 5 seconds of audio. Your voice message is stored securely and plays directly on the card when the recipient opens it. Perfect for adding a personal touch.
Can I upload a photo to my card?
Yes. Click the photo upload button and select any image from your device. Photos are auto-compressed and served via a global CDN for fast loading anywhere in the world.
What is the Time Capsule feature?
Time Capsule lets you lock your card until a specific date and time. The recipient sees a countdown timer and the card unlocks automatically when the time arrives. Perfect for birthday surprises and future messages.
How do replies and reactions work?
Recipients can reply to cards with a short message and leave emoji reactions (❤️ 🎉 😂 👏 🥲 😍). These interactions are visible to the sender. Reactions also contribute to your country's score on the global leaderboard.
What is the Global Leaderboard?
The Greetu.io global leaderboard ranks countries by card creation, views, reactions and replies. Every card created, viewed or reacted to contributes to your country's score. See the live world map with pulsing activity zones at greetu.io/leaderboard.
Does Greetu work in my language?
Greetu supports 48+ countries and regions with localized UI text. This includes English, Spanish, French, German, Russian, Portuguese, Arabic, Filipino, Chinese, Korean, Japanese, Hindi, Indonesian, Thai, Vietnamese, Turkish and more.
What is MCP and why does Greetu support it?
MCP (Model Context Protocol) is an open standard that lets AI assistants like Claude, ChatGPT, Gemini, and Cursor call tools directly. Greetu exposes an MCP server so any AI agent can create greeting cards, check replies, schedule deliveries, and manage webhooks — no web scraping needed.
Can AI agents really create Greetu cards?
Yes. Agents connect via the MCP JSON-RPC endpoint at greetu.io/api/mcp and use tools like greetu.create_card, greetu.schedule_card, and greetu.list_cards. Full schemas and examples are at greetu.io/mcp.
Where is the API documentation?
The OpenAPI spec lives at /openapi.json. Interactive docs, Python/TypeScript examples, and Claude/Cursor/VS Code setup guides are at greetu.io/mcp.
Can I schedule cards to send later?
Yes. Cards can be scheduled for a future date and time. The recipient sees a countdown timer until unlock. This works via the web app or the API (greetu.schedule_card).
Does Greetu have webhooks?
Yes. You can register webhooks to receive real-time events like card.viewed, card.replied, and card.reacted. Webhooks include HMAC-SHA256 signatures and automatic retry with exponential backoff. Perfect for integrating with Make.com, n8n, Pipedream, or Zapier.
Can businesses send cards in bulk?
Yes. The bulk-schedule API accepts a CSV file and can generate personalized AI messages for up to 100 recipients in one call. Ideal for team birthdays, holiday campaigns, or customer appreciation.
How do API credits work?
Each API operation costs credits: create_card (5), schedule_card (5), reply_to_card (3), list_cards (1), get_replies (1), get_reactions (1). Anonymous signup starts with 20 credits. Email signup gives 50 credits.
Do cards have shareable links?
Every card gets a persistent, shareable URL. Send it via WhatsApp, email, SMS, or social media. No app download required for the recipient. Links include rich previews when shared.
Are my cards private?
Yes. Cards are only accessible via their unique link. They are not indexed by search engines (robots.txt blocks all card pages). Only people you share the link with can view your card.
What platforms can connect to Greetu via MCP?
Any MCP-compatible client: Claude Desktop, Cursor, VS Code (with Cline/Roo Code), Zed, and any custom agent using the Model Context Protocol SDK.