Solana Blinks might be the most underappreciated infrastructure on the network. They solve a problem that has held crypto back for years: getting people to execute on-chain transactions without asking them to open a wallet, navigate a dApp, and figure out which button to press.
With Blinks, a URL is the interface. A tweet becomes a swap button. A blog post becomes a checkout page. A Discord message becomes a donation link. The blockchain disappears behind a single click and a wallet confirmation.
This guide explains what Solana Actions and Blinks are, how they work under the hood, what people are building with them, and why they represent a real shift in how users interact with Solana.
What Are Solana Actions?
Solana Actions are an API specification that allows any server to return a signable Solana transaction in response to an HTTP request. Think of them as a standardized way for a server to say: "Here is a transaction, ask the user to sign it."
The spec is simple. An Action is just an HTTPS endpoint that:
- Accepts a GET request and returns metadata — a title, description, icon, and a list of available actions (buttons or inputs)
- Accepts a POST request with the user's wallet address and returns a serialized Solana transaction ready for signing
That's it. No SDK to install. No smart contract interaction libraries. No wallet adapter setup. Any web server that can return JSON can serve Solana Actions.
The specification is defined in the Solana Actions and Blinks spec, and it's been adopted as a standard across the ecosystem. The key endpoints follow this pattern:
GET https://example.com/api/action → returns action metadata (JSON)
POST https://example.com/api/action → accepts { account: "wallet_address" }, returns { transaction: "base64_serialized_tx" }
The GET response includes everything a client needs to render a UI:
- icon: An image URL for the action
- title: What the action does
- description: Additional context
- links.actions: Array of buttons/inputs the user can interact with
Each action in the array can be a simple button (fixed parameters) or include input fields where the user provides values like amounts or recipient addresses.
What Are Blinks?
Blinks — short for Blockchain Links — are the user-facing layer on top of Actions. A Blink is a URL that, when detected by a compatible client (browser extension, social media platform, or app), automatically fetches the Action metadata and renders an interactive transaction UI inline.
The flow from a user's perspective:
- They see a URL, maybe shared on X (Twitter), embedded in a website, or posted in a chat
- Their browser extension or the platform detects it as a Blink
- Instead of showing a plain link, it renders a card with a title, image, description, and action buttons
- The user clicks a button, their wallet pops up to confirm, and the transaction executes
- Done
No dApp visit. No tab switching. No connecting wallets to unfamiliar sites. The entire transaction flow happens right where the user already is.
How Blinks Are Detected
Blinks use a registry system and URL pattern matching. There are two main ways a URL becomes a Blink:
- Direct Action URLs: URLs following the
solana-action: protocol scheme (e.g., solana-action:https://example.com/api/donate)
- Interstitial URLs: Regular HTTPS URLs that are registered in the Blink registry or resolve through
actions.json — a file hosted at the root of the domain that maps URL patterns to Action endpoints
The actions.json file works like robots.txt but for Actions:
{
"rules": [
{
"pathPattern": "/donate/*",
"apiPath": "/api/actions/donate?to={0}"
},
{
"pathPattern": "/swap/**",
"apiPath": "https://actions.example.com/swap/**"
}
]
}
When a client (like the Phantom browser extension) sees a URL, it checks if the domain has an actions.json, resolves the mapping, fetches the Action metadata, and renders the Blink card.
The Technical Flow: Step by Step
Here's exactly what happens when someone interacts with a Blink, from click to confirmed transaction:
Step 1: Detection
A Blink-aware client detects a URL that maps to a Solana Action. This could be a wallet browser extension, a social platform integration, or an embedded widget.
Step 2: GET Request
The client makes a GET request to the Action URL. The server responds with metadata:
{
"icon": "https://example.com/icon.png",
"title": "Donate to Open Source",
"description": "Support this project with SOL",
"links": {
"actions": [
{ "label": "0.1 SOL", "href": "/api/donate?amount=0.1" },
{ "label": "1 SOL", "href": "/api/donate?amount=1" },
{
"label": "Custom Amount",
"href": "/api/donate?amount={amount}",
"parameters": [
{ "name": "amount", "label": "Enter SOL amount" }
]
}
]
}
}
Step 3: Rendering
The client renders a card with the icon, title, description, and action buttons. The user sees a clean interface without knowing anything about Solana's transaction model.
Step 4: User Clicks
The user clicks a button or fills in parameters. The client sends a POST request to the action's href with the user's wallet address:
{ "account": "7nYBs8dK3pLJhN1p2sMrQFz9nFVT5ubNmcRQ8v5XFxyz" }
Step 5: Transaction Construction
The server constructs a Solana transaction — it could be a token transfer, an NFT purchase, a swap, a vote, anything that can be expressed as a Solana transaction. It serializes the transaction and sends it back:
{
"transaction": "AQAAAA...base64_encoded_transaction",
"message": "Donating 1 SOL to Open Source Fund"
}
Step 6: Signing
The client deserializes the transaction, displays it for the user's review in their wallet (showing what the transaction does, token amounts, etc.), and asks for a signature.
Step 7: Submission
Once signed, the client submits the transaction to the Solana network. Confirmation typically takes 400ms to a few seconds.
The entire process takes maybe 10 seconds from the user's perspective. Compare that to the typical DeFi flow: visit dApp, connect wallet, approve connection, find the right page, enter parameters, click swap, confirm in wallet. Blinks collapse all of that into a single interaction.
Real Use Cases: Where Blinks Are Being Used
The beauty of Blinks is their versatility. Because any Solana transaction can be wrapped in an Action, the use cases are as wide as Solana itself.
Tipping and Donations on Social Media
This was the first killer use case. Content creators share Blink URLs on X, and followers can tip them directly from the timeline. No payment processor, no platform cut (beyond Solana's fraction-of-a-cent transaction fee), no KYC.
Donation Blinks have been widely used by open-source projects, content creators, and DAOs running fundraisers. A single tweet can include a Blink with preset amounts (0.1 SOL, 0.5 SOL, 1 SOL) plus a custom input field.
Token Swaps
Jupiter was one of the first protocols to implement Blinks for swaps. Share a Jupiter swap Blink, and anyone who clicks it can execute the swap directly from wherever they see the link. The Jupiter Action endpoint handles routing, slippage, and transaction construction — the user just confirms.
This has significant implications for how tokens get distributed and traded. Project founders share swap links in their communities, and users can buy without navigating to a DEX.
NFT Minting and Purchasing
NFT marketplaces like Tensor have integrated Blinks for instant purchases. An NFT listing can be shared as a Blink — the card shows the NFT image, collection name, and price, with a single "Buy Now" button.
This removes the multi-step marketplace flow entirely. Collectors see an NFT they like, click, confirm, own it.
Governance Voting
DAOs use Blinks for governance. A proposal can be shared as a Blink with "Vote Yes" and "Vote No" buttons. Members vote directly from wherever they see the link — Discord, X, a forum post, an email newsletter. Participation rates go up dramatically when voting is one click away.
Staking protocols have implemented Blinks that let users stake SOL or tokens directly from a shared link. No need to visit the staking interface. The Action endpoint constructs the stake transaction with the current APY and validator selection handled server-side.
Payments and E-Commerce
Merchants use Blinks as a payment method. A Blink URL can request a specific USDC amount, making it function like a payment link. Share it via email, embed it on a product page, or put it in a QR code. The buyer clicks, confirms the USDC transfer in their wallet, done.
| Use Case | How It Works | Example |
|---|
| Tipping | Preset SOL amounts + custom input | Creator shares tip Blink on X |
| Token Swap | Jupiter routing, slippage handled server-side | Project shares buy link in Discord |
| NFT Purchase | Marketplace listing as Blink card | Collector buys from tweet |
| DAO Voting | Yes/No buttons map to on-chain votes | Proposal shared in governance forum |
| Staking | Stake transaction with current APY | Protocol shares stake link |
| Payments | Fixed USDC amount transfer | Merchant shares checkout link |
| Airdrops/Claims | Claim transaction for eligible wallets | Project shares claim link |
Which Wallets Support Blinks?
Blink support requires wallet integration at two levels: detecting Blinks in the browser, and signing the resulting transactions.
| Wallet | Blink Detection | Transaction Signing | Notes |
|---|
| Phantom | Yes (browser extension) | Yes | First wallet to support Blinks, unfurls on X and other platforms |
| Solflare | Yes (browser extension) | Yes | Full Blink support with security scanning |
| Backpack | Yes | Yes | Supports Blinks with built-in action verification |
| Other Solana wallets | No (detection) | Yes (signing) | Can sign Blink transactions if initiated from a compatible client |
Phantom and Solflare are the primary Blink clients. Their browser extensions detect Blink URLs on supported platforms and render the interactive cards. Other wallets can still sign Blink-initiated transactions if the user interacts with a Blink through a web-based client that supports wallet adapter connections.
Security Considerations
Because Blinks involve signing arbitrary transactions from unfamiliar URLs, wallets implement several protections:
- Domain verification: Wallets check whether the Action URL's domain is registered and verified
- Transaction simulation: Before presenting the transaction for signing, wallets simulate it and show the user exactly what will happen (tokens sent, tokens received, programs involved)
- Registry checking: A community-maintained registry of verified Action providers helps wallets distinguish legitimate Blinks from potential scams
- Warning labels: Unverified or unknown Blinks show warnings, and some wallets block them entirely by default
How to Create a Blink as a Developer
Building an Action (and therefore enabling Blinks) is surprisingly straightforward. If you can build a REST API, you can build a Solana Action.
Step 1: Set Up Your Action Endpoint
Create an API endpoint that handles GET and POST requests. For a simple SOL donation Action:
GET handler: Return metadata describing the action — title, description, icon, and available actions with their parameters.
POST handler: Accept the user's wallet address, construct a Solana transaction (e.g., a SOL transfer using SystemProgram.transfer), serialize it to base64, and return it.
Step 2: Host actions.json
Add an actions.json file to your domain root that maps URL patterns to your Action API endpoints. This tells Blink clients how to resolve your URLs.
Step 3: Register Your Action
Submit your Action to the Blinks registry for verification. This improves trust signals when wallets display your Blink.
Step 4: Share Your Blink URL
Once deployed, your Action URL works as a Blink anywhere that Blink-compatible clients can detect it. Share it on X, embed it on your website, or distribute it however makes sense for your use case.
Developer Tools and SDKs
The ecosystem has built several tools to make Action development easier:
- @solana/actions SDK: Official TypeScript SDK with helpers for creating Action responses, constructing transactions, and handling the request/response cycle
- Dialect Blinks SDK: React components for embedding Blink cards directly in web applications (no browser extension needed)
- Action templates: Community-maintained templates for common patterns like donations, token gating, and NFT minting
A basic Action can be built and deployed in under an hour. Complex Actions that integrate with DeFi protocols, query on-chain state, or implement conditional logic take longer, but the surface area is still just two HTTP endpoints.
Current Adoption and Ecosystem Growth
Since launching in mid-2024, Blinks adoption has grown steadily rather than explosively. The infrastructure works well, and the developer experience is good, but adoption depends on client-side support — and that's where the bottleneck has been.
What's Working
- Social tipping: This is the most natural use case and has solid adoption among Solana communities on X
- Project token distributions: New projects frequently use Blinks for airdrop claims and token sales
- NFT drops: Artists and collections use Blinks for primary sales, bypassing marketplace UIs
- Jupiter integrations: Swap Blinks have become common in trading communities
- Developer tooling: The SDKs and spec are mature and well-documented
Current Limitations
- Platform dependency: Blink unfurling on X depends on browser extensions. X hasn't natively integrated Blink rendering, so users need Phantom or Solflare installed
- Mobile experience: Mobile Blink support is less smooth than desktop, since mobile browsers handle wallet connections differently
- Discovery: There's no central directory of available Blinks, making it hard for users to discover what Actions exist
- Cross-chain: Blinks are Solana-only. While the pattern could theoretically work for other chains, no cross-chain standard has emerged
The Future: Making Crypto Invisible
Blinks represent something bigger than a convenient URL format. They point toward a future where blockchain interactions are embedded everywhere, but the blockchain itself is invisible to the end user.
Consider what Blinks make possible:
Any website becomes a Solana interface. A blog can embed a Blink to let readers buy the author's token. An e-commerce site can embed Blinks for USDC payments without integrating a payment processor. A news site can embed a Blink for readers to stake on a prediction market related to the article they're reading.
Social media becomes a transaction layer. Instead of "link in bio" pointing to a dApp, the link itself IS the dApp. Influencers can distribute investment opportunities, NFT drops, and token swaps directly in their content.
Email and messaging become wallets. A Blink URL in an email can let recipients claim tokens, pay invoices, or vote on proposals without ever visiting a website beyond their inbox.
The pattern removes the single biggest friction point in crypto: getting users to a specialized application. With Blinks, you meet users where they already are.
What Needs to Happen
For Blinks to reach their full potential, a few things need to develop:
- Native platform support: X, Discord, Telegram, and other platforms natively rendering Blinks without browser extensions would be transformative
- Mobile wallet improvements: Seamless mobile Blink experiences need better deep-linking between browsers and wallet apps
- Standards expansion: The Action spec could expand to support multi-step flows, conditional actions, and richer UI elements
- Security tooling: As Blinks become more common, phishing Blinks will too. Better verification systems and wallet protections will be necessary
- Analytics: Action providers need better tools to track Blink engagement, conversion rates, and user flows
Blinks vs. Traditional dApp Interactions
To put this in perspective, here's how the same action — buying a token — works through a traditional dApp versus a Blink:
| Step | Traditional dApp | Blink |
|---|
| 1 | See recommendation, open dApp URL | See recommendation with Blink URL |
| 2 | Wait for dApp to load | Blink card renders inline |
| 3 | Click "Connect Wallet" | Click "Buy" button |
| 4 | Select wallet provider | Wallet popup shows transaction |
| 5 | Approve connection in wallet | Confirm and sign |
| 6 | Navigate to swap page | Transaction confirms |
| 7 | Enter token and amount | Done |
| 8 | Click swap | — |
| 9 | Confirm in wallet | — |
| 10 | Transaction confirms | — |
Ten steps versus six, and the Blink steps require less cognitive load at each point. Multiply that across millions of potential transactions and you start to see why this matters for adoption.
Bottom Line
Solana Actions and Blinks are the kind of infrastructure that doesn't make headlines but quietly changes how an ecosystem works. They turn any URL into an on-chain interaction point, reduce transaction friction to a single click, and enable entirely new distribution patterns for crypto products.
For developers, they're trivially easy to implement. For users, they make Solana interactions feel like clicking a normal button on the internet. For the ecosystem, they represent a path toward the goal that every crypto network claims to want: making the blockchain invisible while keeping its benefits.
If you're building on Solana, you should be building Actions. If you're using Solana, look for Blinks — they're increasingly the fastest way to get things done on-chain.
Explore Solana wallets that support Blinks: Phantom and Solflare. For DeFi Blinks, check out Jupiter for swaps and Tensor for NFT trades.
