Describe the coins and levels you care about and Netiva’s AI builds a web app that checks prices on a schedule, emails you when a rule trips and keeps every alert on record — with code you own.
Build a crypto price alert web app for me and a trading community of about 200 members. List coins with their market-data provider ID and quote currency. Members sign in and create rules per coin: price above, price below or a move up or down by a percentage since the rule was armed or over 24 hours, each with a short note. Check prices every five minutes, email the rule’s owner when a level is crossed, then hold the rule until price moves 1% back past it. Log every trigger with the price, time and email status. Add a page of shared key levels members can follow.
Crypto trades around the clock, so the level you’ve been waiting for can break at 3 a.m. Alerts end up scattered across exchange and charting apps, each with its own list, and none records why a level mattered or which price tripped it. A crypto price alert app built with Netiva keeps every rule in one place: above, below or percent-move thresholds per coin, checked on a schedule against the price source you choose. It works as a cryptocurrency alert app for you or a whole trading community, emailing whoever set each rule and logging every trigger.
Each rule pairs a coin with a condition and a level: price above, price below or a move up or down by a percentage. Write down why the level matters, and the alert email repeats it back to you.
Each run reads the latest prices for coins that have armed rules from the market-data provider you pick, with your API key stored securely, then tests every rule on those coins.
When price crosses a level, the rule’s owner gets a single email with the coin, the level, the price that crossed it and their note. The rule then waits before it can fire again, so a choppy market doesn’t flood the inbox.
Every trigger is saved with the price, the time and whether the email went out. Community owners post key levels in the collection grid, and members follow them from a shared levels page.
Netiva keeps your records in built-in collections. Here’s a starting structure — the agent adapts it to your prompt, and you can change it any time.
The coins your rules watch, matched to their IDs at your market-data provider.
Each member’s thresholds, one row per coin and condition.
One row each time a rule trips; together they make up your alert history.
Key levels the community owners post for members to follow.
Required field. Types are Netiva collection field types.
A typical first version. Ask the agent for more, or annotate the preview to change any of them.
Your rules grouped by coin with level, status and distance from the last price, plus buttons to pause, edit or re-arm each one.
Signed-in usersPick a coin and a condition, see the current price and how far away your level is before saving, and note why the level matters.
Signed-in usersEvery trigger for your rules, newest first, with the level, price at trigger, time and email status, filterable by coin and month.
Signed-in usersThe community’s live key levels with each rationale and follower count; follow one to copy it into your own rules.
Signed-in usersLast checked price for one coin with your rules and the community’s shared levels for it, sorted by distance from that price.
Signed-in usersYour armed rules within a distance you choose of their level, closest first, so you can adjust or pause them before they trip.
Signed-in usersTell Netiva which coins and conditions you use, how often prices should be checked and who gets the emails. The agent drafts collections for coins, alert rules, alert events and shared levels.
Store your market-data provider’s API key securely, then ask the collection assistant to fill in each coin’s provider ID across the grid. Check a few by hand before the first scheduled run.
Arm a rule just beyond the last checked price, then set that coin’s last price in the grid to the other side of the level and run a check. The email and history row should appear; if either reads wrong, annotate it and the agent fixes it.
Publish in one click, switch on the scheduled check and share the sign-up link. Invite co-owners into the workspace to post shared levels; every change is checkpointed and easy to roll back.
| Criterion | With Netiva | Traditional build |
|---|---|---|
| Watching price levels | One list of rules per coin, checked on your schedule, with every trigger kept in a history | Alerts scattered across exchange and charting apps, each with its own list and no shared history |
| Levels for a trading group | Shared levels members follow in one click, each emailed only to the member who follows it | A level posted in chat that each member copies into their own alert tool by hand |
| Getting started | Describe what you need in chat and watch it take shape in a live preview | Hire developers, or stitch together templates, plugins and a hosting plan |
| Content and data | Built-in collections with nine field types, bound straight to your pages | Set up and connect a separate database or CMS |
| Making changes | Ask the agent; every change is checkpointed and reversible | File a ticket, wait for a sprint, redeploy |
| Hosting and domain | Global hosting and automatic SSL; connect a custom domain from the Starter plan | Buy hosting, then install and renew SSL certificates yourself |
| Code ownership | Clean production code you own and can export | Locked into a template, plugin or agency setup |
Levels for a few large coins and some smaller ones sit in one list, each with its reasoning. A down-by-8% rule over 24 hours catches sharp drops, and after a month the history shows which levels tripped too often to be useful.
The owners post weekly key levels with a short rationale. Members follow the ones they care about and each gets a personal email when price crosses, instead of scrolling back through the chat to find the level.
Two rules watch a dollar-pegged stablecoin, one below 0.99 and one above 1.01, so a drift of more than 1% from the peg doesn’t go unnoticed during the workday.
Netiva doesn’t hold coins, connect to an exchange to trade or tell anyone what to buy. An alert is an email saying a price crossed a level; any order happens in your own exchange account, on your own judgment.
Prices are read at the interval you set, so a spike that reverses between two checks won’t trip a rule, and an email can take a while to arrive. The app isn’t a substitute for the stop orders your exchange offers.
Choose a market-data provider, read its terms and rate limits and size the check interval to fit. An aggregator’s price is typically a weighted average across exchanges, so it can differ from the last trade on your exchange.
Posting levels to a group, especially a paid one, can count as a financial promotion or investment advice in some countries. The UK, for one, applies its crypto promotion rules to firms marketing to UK consumers, even from overseas. Get legal review first.
Netiva builds the alerting app; watching and emailing are all it does — no mining, no custody, no orders, no investment advice — and the prices it tests against come from the market-data provider you pick. An alert says a level was crossed, not that anyone should act on it. If you post levels to a group as part of a business, paid or not, or you later add anything that touches members’ funds or orders, use your own licensed provider and get legal review in your jurisdiction.
Not one built with Netiva. It sends email and runs scheduled jobs, but it doesn’t send SMS or push notifications. A practical workaround is to give alert emails a distinctive subject line and turn on notifications for that sender in your mail app, so a tripped level still reaches your phone. The alert app itself is a web app that opens in the phone’s browser, with nothing to install.
That depends on how often you schedule checks and what your data provider allows. An interval such as every 5 or 15 minutes is a sensible place to start; shorter intervals use more API calls and can run into a free tier’s rate limit. To save calls, the job requests only coins with at least one armed rule. Because checks are periodic, a spike that reverses between two of them can be missed.
For a since-armed rule, each check takes the current price minus the reference price stored when the rule was armed, divides by that reference and multiplies by 100. When the result reaches your threshold, such as down 8%, the alert fires, and the reference resets when the rule re-arms. A 24-hour rule uses the change your provider reports instead, which is usually a rolling 24-hour window rather than a calendar day.
Ask the agent for crossing logic and a re-arm buffer. A rule fires only when the previous check was on one side of the level and the current check is on the other. It then waits until price moves back past the level by the buffer you set, such as 1%, before it can fire again. A cooldown of a few hours adds a second brake when price chops around a level. A rule saved on the already-crossed side of its level stays armed until price crosses back.
Yes, as extensions you describe to the agent. A watched-address rule can call a block explorer or indexer API on the same schedule and email you when a public address sends or receives more than a set amount; never store a private key. A news-keyword rule can scan a news provider’s headlines for a coin plus a word such as “exploit”. For full balances and activity, a watch-only wallet dashboard is a separate build.
No. Calling a market-data provider’s API works on every Netiva plan, including Free, so you can build your alert rules and try them in the live preview before choosing a paid plan. Custom domains are available from the Starter plan, and higher plans add capacity and features. Your data provider’s own plan matters as well, since it caps how many price requests your checks can make. Compare Netiva’s current plans on the pricing page.
Drafted with AI assistance from Netiva’s product pages and reviewed by the Netiva team. Example data models, screens and prompts are illustrative starting points, not customer projects.
Describe it in a sentence and watch Netiva’s agent build it. Free to start — no credit card required.