How Solana Blinks Work: A Beginner's Guide

If you've seen an interactive donation card appear directly in a Twitter/X feed, you've seen a Solana Blink in action. But what exactly are Blinks, and how do they work?

What Are Solana Blinks?

Blink stands for Blockchain Link. It's a standard developed by Dialect and the Solana Foundation that turns any Solana transaction into a shareable, interactive link.

When you share a Blink URL on Twitter/X, compatible wallet extensions (like Phantom or Backpack) render it as a rich card — complete with images, descriptions, and action buttons — right in the feed.

How Blinks Power BlinkFund

On BlinkFund, every campaign automatically generates a Blink URL. When a creator shares this link on Twitter:

The card renders — Supporters see the campaign title, description, progress bar, and preset donation buttons
One-tap donation — Clicking a button triggers a Solana transaction in the user's wallet
Instant confirmation — The donation is recorded on-chain and the campaign progress updates in real-time

The Technical Flow

Behind the scenes, Blinks use the Solana Actions API:

GET request returns the card metadata (title, image, buttons)
POST request builds and returns a transaction for the user to sign
The user's wallet signs and broadcasts the transaction
BlinkFund confirms the donation on-chain and updates the campaign

Why This Matters for Crowdfunding

Traditional crowdfunding platforms require users to leave their feed, create an account, enter payment details, and navigate a checkout flow. With Blinks:

Zero friction — Donate without leaving Twitter
No accounts needed — Just a Solana wallet
Full transparency — Every donation is verifiable on-chain
Non-custodial — Funds go directly to the creator's wallet

Getting Started

Ready to create your first campaign? Visit BlinkFund to verify your wallet and launch a campaign in under 2 minutes. Then share your Blink URL on Twitter and watch the donations roll in.

Want to explore existing campaigns first? Check out the Explore page to see what others are building.