Solana Actions & Blinks: Best Exclusive On-Chain Actions
Table of Contents
Solana Actions and Blinks turn any link into an on-chain button. A user can click a link in a post, email, chat, or QR code, then sign a transaction in their wallet. No dApp tab. No deep navigation. Just a clear action that executes fast.
What Solana Actions do
Solana Actions are HTTP endpoints that return a transaction or set of choices the user can sign. The endpoint encodes the intent, like “swap 1 SOL for USDC” or “mint 1 NFT.” Clients fetch the endpoint, render a simple UI, and hand off the signed transaction to the cluster.
Think of an Action as a small, focused API for one job. It can live on a website, inside a newsletter, or behind a QR code on a poster. If the wallet supports Actions, the flow feels native.
What Blinks add
Blinks make Actions portable and visible across feeds. A Blink is a shareable link that previews the Action and shows a button like “Swap,” “Mint,” or “Donate.” Social platforms, chats, and blogs can embed these previews, so the action travels with the link.
A street artist can post a Blink to mint a limited run NFT. A reader clicks the button in the post, picks a wallet, signs, and gets the piece. The whole flow completes without leaving the feed.
Why this model works
Actions shrink the surface area. Each link exposes one clear task, which lowers friction and reduces misclicks. Blinks cut the distance between intent and confirm. Solana’s fast finality and low fees make these micro-interactions feel natural.
Core workflow at a glance
The flow stays the same for most Actions. These steps outline the typical path from click to confirmation.
- User clicks a Blink or Action URL in a feed, site, or QR scan.
- Client fetches the Action endpoint and displays options (amounts, tokens, NFT id).
- User picks a wallet; the wallet requests permission and shows fees and details.
- User signs; the client submits the transaction to Solana RPC or a relay.
- Client confirms status and shows a receipt link to a block explorer.
Small details matter here. Pre-filling sensible defaults and showing a clean fee line reduces drop-off, while a fast receipt builds trust for the next action.
Best exclusive on-chain actions on Solana
These Action types play to Solana’s strengths: speed, low cost, and state compression. They work well in social feeds, mobile, and offline posters with QR codes.
- Instant tipping and micro-payments: Send 0.01 SOL to a creator from a tweet. A Blink shows “Tip 0.01 SOL,” the wallet opens, and the payment lands in seconds.
- One-click NFT mint (including compressed NFTs): Offer a limited mint during a live stream. Fees stay low even at scale due to state compression.
- Swap with preset pairs: Share a “Swap 1 SOL → USDC” Blink with slippage and route baked in. A newcomer sees one clear choice and no chart maze.
- Claim drops or POAP-style badges: Gate by wallet, code, or timeframe. A QR poster at a conference can issue an on-site badge in under five seconds.
- Join a vote or sign a message: Present a governor proposal as a link in Discord. Sign and cast with one click from any device.
- Donate to public goods: Publish a shareable “Donate 0.5 SOL” Blink with a transparent wallet address and a receipt link.
- Register a username or handle: Wrap a name service registration into an Action. Show availability and price, then register on the spot.
- Token-22 features (metadata, transfer hooks): Use Actions to opt into features like transfer fees or receipts baked into the token standard.
These actions thrive where attention is short. A clear button and a fast confirm make the difference between intent and completion.
Example scenarios
A musician posts a Blink: “Mint Tour Badge.” Fans click in the feed, pay a tiny fee, and the badge appears in their wallet before the chorus ends. At a café, a tip jar sign shows a QR with “Tip 0.02 SOL.” A customer scans, confirms, and hears the barista’s phone buzz.
Action anatomy and design tips
An Action endpoint should be predictable, cache-friendly, and explicit. Use plain names, strict types, and safe defaults. Map errors to user-friendly text and keep the preview minimal.
Recommended fields
Design endpoints that exchange clear inputs and outputs. Keep ambiguity out of the UI and the payload.
| Field | Purpose | Example |
|---|---|---|
| title | Short label for the button and preview | “Swap 1 SOL → USDC” |
| icon | Trusted image URL or data URI | https://example.com/icon.png |
| description | One line of detail for the user | Slippage 0.5%, estimated USDC: 180 |
| amount/options | Preset values or a prompt to enter one | “0.01 SOL” or a list of 0.01 0.05 0.1 |
| transaction | Base64-encoded compiled transaction or message | Signed by user; program IDs fixed |
| callback | Where the client posts the signature for receipt | https://api.example.com/receipt |
Keep the preview fast. If you need price quotes, fetch them server-side so the client sees a ready-to-sign payload.
Security and trust
Users sign what they see. Reduce surprises and publish clear sources. Simple rules improve safety and trust across wallets and feeds.
- Pin program IDs and verify them on the server.
- Whitelist domains that can host your Actions.
- Return human-readable text for risky steps like approvals.
- Show total fees, including priority fees, before sign.
- Rate-limit endpoints and cache previews to avoid quote drift.
If you update routes or fees, version the Action URL. A stable link builds user confidence and cuts false declines.
Performance and UX notes
Solana confirms fast, but users still notice lag. Trim each hop. Prebuild transactions, use a nearby RPC, and avoid redirects that break wallet handoff.
Latency hotspots
The biggest delays come from quotes, cold starts, and slow RPCs. Tackle them first for a smoother flow.
- Warm serverless functions during traffic spikes.
- Use a quality RPC with quick getLatestBlockhash.
- Cache quotes for a few seconds to avoid refetch loops.
- Compress images and icons so previews render instantly.
A Blink that loads in under 300 ms feels alive. The wallet prompt should follow almost immediately.
How to ship your first Action
Start with a small scope like a fixed-amount tip. You can expand to swaps or mints after you validate the flow and metrics.
- Define the intent and fix defaults (amount, token, slippage).
- Implement a GET that returns preview metadata.
- Implement a POST that returns a compiled transaction.
- Test wallet handoff on mobile and desktop clients.
- Add a callback to confirm and log the signature.
- Wrap it in a Blink and share it in a safe test channel.
Keep logs with user consent. Inspect errors, rejections, and timeouts. Tight loops on copy and defaults can double completion rates.
What to measure
Data closes the loop. Watch the funnel and improve the sticky parts first.
- Preview loads vs. wallet opens
- Sign prompts vs. confirmed signatures
- Median end-to-end time
- Drop-off by platform (web, iOS, Android)
- Error codes (blockhash expired, slippage, insufficient funds)
A small change like showing the exact receive amount or a clearer fee label often yields a visible lift in completion.
Practical tips for shareable Blinks
Links travel. Shape them for where they land. Think social cards, QR scans, and copy-paste into chat.
- Use concise titles that fit in a single line.
- Include a safe fallback page for clients without Blink support.
- Shorten URLs for print and on-stage slides.
- Localize the preview text if your audience spans regions.
Run a small test with 50 users in a real channel. Watch how many complete the action and ask what felt unclear.
Final notes
Actions and Blinks make on-chain tasks as easy as clicking a link. Solana’s speed and low fees keep these micro-interactions cheap and quick. Start with one focused Action, ship it with a Blink, and refine based on clear metrics. The best flows feel obvious, load fast, and finish with a receipt you can share.
