Build this if
You can secure reliable on-chain data APIs and want to serve collectors who repeatedly evaluate wallets.
Paste any public wallet address and within seconds see a complete NFT and token breakdown—floor value, rarity, realized PnL, and whale activity—with no login required.

Decision snapshot
You can secure reliable on-chain data APIs and want to serve collectors who repeatedly evaluate wallets.
You cannot guarantee sub-10-second data retrieval or lack access to floor-price and rarity data sources.
Ship the no-login wallet lookup with 50 addresses, measure return usage rate and watchlist sign-ups.
Problem and target customer
NFT collectors juggle multiple block explorers, marketplace dashboards, and spreadsheets to assess a wallet's portfolio. There is no single focused tool that combines holdings, floor value, rarity, realized PnL, and whale activity into one view.
Active NFT collectors and traders who need to evaluate any public wallet's portfolio quickly before making buy, sell, or watchlist decisions.
Freemium with a free no-login lookup tier and a paid workspace subscription for watchlists, alerts, and export.
Editorial note
Collectors evaluating a wallet today bounce between block explorers, marketplace pages, and spreadsheets. This tool collapses that workflow into a single paste-and-view experience: floor value, rarity, realized PnL, and whale activity in one dashboard.
The MVP stays narrow by focusing on one primary chain, one lookup flow, and a 15-minute cache to control external API costs. A paid watchlist tier adds recurring alerts and export for collectors who track multiple wallets.
Choose your next step
Evaluate the operating tradeoffs quickly, or inspect how to build the MVP.
Compare the three operating paths at the default workload before opening the full calculator.
See cost preview Build this ideaInspect the build blueprintReview MVP scope, workflow, states, data rules, architecture, and acceptance criteria.
Open blueprintEvaluation preview
Directional infrastructure estimates for the current 1,000 generated outputs assumption. Open the full calculator when you are ready to change it.
Managed app hosting, database, backups, and basic observability for the ai-generation workflow.
Lowest operating effortOne small VPS running the app, database, media volume, and backup job.
Lowest baseline costSeparate app, data, storage, and worker capacity for cleaner operations.
Most separation and controlBuild blueprint
Product goal
MVP scope
UX and user flow
Paste a public wallet address and trigger instant analysis with no login
Display collection cards, PnL chart, token holdings, and whale activity feed
Saved wallets with whale activity alerts for logged-in subscribers
Export realized gains and losses report for a wallet
Core entity outline
Cached on-chain data for a wallet address with 15-minute TTL
NFT collection metadata including floor price and total supply
Individual NFT holding with rarity and acquisition data
Token holding with balance and current market value
Wallet transaction used to compute realized PnL
Architecture and data flow
Accept wallet address, check cache, fetch on-chain data if expired, return snapshot
Compute realized gains and losses from transaction events
Generate natural-language portfolio summary from computed metrics
Manage saved wallets and whale alert subscriptions
Store and expire wallet snapshots with 15-minute TTL
Deliverables and acceptance
Recommended stack
Rapid build of a data-dense dashboard with wallet input, collection cards, and PnL charts using indigo-on-white styling.
Host the API that fetches on-chain data, computes PnL, stores snapshots, and serves watchlist endpoints.
Durable storage for wallet snapshots, watchlist entries, collections, NFTs, tokens, and transaction events.
Optional webhook orchestration to queue wallet address submissions and trigger snapshot refresh when TTL expires.
Generates a concise natural-language portfolio summary from computed holdings and PnL data.
Lovable handles the visual dashboard and input flow. Railway provides the API and Postgres for snapshot caching and watchlist persistence. Make is bounded glue for webhook-triggered refreshes. OpenAI produces the portfolio summary that augments the raw metrics.
Copy the build prompt, model the operating cost, and choose where to deploy.
Execution
Once the blueprint is clear, use the prompt, cost model, and deployment options to start building.
Build prompt
Lovable
Build prompt
Open the prompt pack whenever you are ready to take this blueprint into your builder.
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Copy the prompt into your builder, then use the cost model below to choose how you want to run it.
Use the cost model to choose a deployment path that matches the build plan.
Cost calculator
A technical run-cost estimate for the first production version. Team, acquisition, payment fees, and business COGS are excluded.
$14-$36 per 500 generated outputs
Low and high values allow for usage variance and plan headroom.
Managed app hosting, database, backups, and basic observability for the ai-generation workflow.
50K generated outputs included, then $8-$20 per 100K generated outputsLLM API is implied by the source workflow or feature list.
1K generated outputs x 2.5K input + 700 output tokensThe estimate combines the selected infrastructure path, required operating modules, selected optional modules, and usage above included monthly allowances. Taxes and regional uplifts are excluded.
Deployment options
Choose based on operating preference, not only the headline price.
Fast Docker deployment for the app, database, worker, and preview workflow without managing a VPS.
Usage billing needs active monitoring as traffic and jobs grow.
Run the app, worker, and database on one small Vultr VPS with Docker Compose and explicit backups.
You own patching, backups, monitoring, and incident response.
Separate application, worker, data, storage, and backup responsibilities as the workload grows.
You own server setup, patching, backups, and operational monitoring.
Start building
Build the no-login landing page with wallet address input, collection cards, PnL chart, token holdings table, and whale activity feed using indigo accents on a white background.
Open Lovable 02AutomationSnapshot refresh webhookConfigure an optional webhook that queues wallet address submissions and triggers a snapshot refresh when the 15-minute TTL expires.
Open Make 03DeployAPI and data layerDeploy the backend API that fetches on-chain data, computes floor value and PnL, stores cached snapshots and watchlist entries in Postgres, and calls the LLM for portfolio summaries.
Open Railway