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Track Costco prices

Watch the member price on any Costco item and act on a drop: get notified, log the change, or trigger an approved workflow on your own account.

Build a Costco tracker How Watch-and-Act works

Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.

Watching member priceDrop detected

$129.00 ↓ 14%

was $149.99 · checked 6s ago

Trigger: run notify + log

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create

Build a Costco price tracker in minutes

Point the recorder at a Costco page, mark the member price, and Writ builds a Monitor that reads it on a schedule and fires a workflow on a drop, running on your own account, on a page you are authorized to use.

1
Open a Costco item in the recorder
Point the recorder at the Costco page and mark the member price. Writ renders Costco in real Chromium, so it reads values that load with JavaScript, not list-price theater.
2
Set the schedule and target
Choose how often Writ checks (as fast as every 10s) and a target price or percentage drop. Each check records the member price, building a real price history.
3
Act on the drop
A matching change fires a workflow: notify you across six providers, log the new member price, or trigger an optional approved workflow on your own authenticated Costco account.

Build a Costco tracker See how it works

See how Watch-and-Act works, build on workflows, or search for another site. Free to start. See pricing.

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what to track

Track real Costco price movement

Writ reads the live member price on Costco and records every check, so you act on genuine drops.

$Costco member priceWatch the member price on a Costco product or listing and get alerted the instant it moves up or down.

⊞Stock & availabilityPair price with stock so you only act when a Costco item is both in budget and actually available.

▤Price historyEach check records the member price, so you build a real history and spot true drops, not list-price theater.

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how it works

From a Costco price drop to an action

1
Point at a Costco item
Give Writ the Costco URL and tell it to watch the member price.
2
Set your threshold
Choose a target price or a percentage drop. Writ checks as fast as every 10s.
3
Act on the drop
On a matching change, get a notification, log the new member price, or run an approved workflow on your own account.

Check cadence by plan

How often Writ checks Costco is set by your plan. Static pages check faster than pages Writ has to render in a full browser.

Plan	Static page	Dynamic (JS)
Free	5 min	15 min
Starter	60s	10 min
Pro	60s	10 min
Growth	30s	5 min
Scale	10s	2 min

Enterprise reaches 10s. pricing.

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approved action

Act automatically when Costco hits your price

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Guardrails on by default. Approved actions run behind a dry-run mode, a confirm gate, a rate limit, and idempotency, so one detected change never triggers the action twice. They run on your own authenticated Costco account. Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.

Approved actions are a cloud-only capability, gated by plan.

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run it

Free on your own machine, or on cloud

Local / BYO agent

No compute charge. Track Costco prices from your own hardware; local runs do not use Writ cloud compute.

Writ cloud

Always-on tracking, metered by running time at $0.12 per browser-hour, drawn from your plan’s included usage.

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other ways

Other ways to work with Costco

Monitor CostcoWatch Costco for price drop and restock.Change detection Turn Costco into an APIRead Costco member price from a REST endpoint.REST Costco MCP toolsLet your agent check Costco prices.For AI agents Automate CostcoTurn Costco into a callable workflow, no code required.Automation Extract structured data from CostcoPull Costco pricing fields into clean JSON.Data

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faq

Costco price tracking questions

How does Costco price tracking work?

Writ sets up a Monitor on the Costco page you choose and reads the member price in a real browser, so it catches values that load with JavaScript. It checks as fast as every 10s and records each reading, so you see a true price history and get alerted on a real change.

Is there a ready-made Costco price tracker I can install?

Yes. Point the recorder at the Costco page, mark the member price, and Writ builds a Monitor that reads it on a schedule. No catalog listing required; it takes minutes.

Can it act automatically when Costco drops to my price?

Yes. A price drop can trigger an approved workflow on your own authenticated Costco account. It runs with guardrails on by default: a dry-run mode, a confirm gate, a rate limit, and idempotency so one detected change never triggers the action twice.

How will I be notified of a Costco price change?

Through any of six providers (Email, SMS, WhatsApp, Signal, Pushover, or a custom webhook), or by running a full workflow that records the new member price or pushes it to a destination.

Is it allowed to track prices on Costco?

Use Writ on your own Costco membership for actions you are entitled to take. Respect its Terms and purchase limits. Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.

rec ▸ ready ●

Track Costco prices and act on the drop

Set a target, let Writ watch it on a schedule, and act the moment the price moves. Get started free.

Get started