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Track Facebook Marketplace prices

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

Build a Facebook Marketplace 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 item priceDrop detected

$129.00 ↓ 14%

was $149.99 · checked 6s ago

Trigger: run notify + log

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create

Build a Facebook Marketplace price tracker in minutes

Point the recorder at a Facebook Marketplace page, mark the item 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. 1
    Open a Facebook Marketplace item in the recorder

    Point the recorder at the Facebook Marketplace page and mark the item price. Writ renders Facebook Marketplace in real Chromium, so it reads values that load with JavaScript, not list-price theater.

  2. 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 item price, building a real price history.

  3. 3
    Act on the drop

    A matching change fires a workflow: notify you across six providers, log the new item price, or trigger an optional approved workflow on your own authenticated Facebook Marketplace account.

Build a Facebook Marketplace 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 Facebook Marketplace price movement

Writ reads the live item price on Facebook Marketplace and records every check, so you act on genuine drops.

$Facebook Marketplace item priceWatch the item price on a Facebook Marketplace product or listing and get alerted the instant it moves up or down.
⊞Stock & availabilityPair price with stock so you only act when a Facebook Marketplace item is both in budget and actually available.
▤Price historyEach check records the item price, so you build a real history and spot true drops, not list-price theater.
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how it works

From a Facebook Marketplace price drop to an action

  1. 1
    Point at a Facebook Marketplace item

    Give Writ the Facebook Marketplace URL and tell it to watch the item price.

  2. 2
    Set your threshold

    Choose a target price or a percentage drop. Writ checks as fast as every 10s.

  3. 3
    Act on the drop

    On a matching change, get a notification, log the new item price, or run an approved workflow on your own account.

Check cadence by plan

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

PlanStatic pageDynamic (JS)
Free5 min15 min
Starter60s10 min
Pro60s10 min
Growth30s5 min
Scale10s2 min

Enterprise reaches 10s. pricing.

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approved action

Act automatically when Facebook Marketplace 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 Facebook Marketplace 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 Facebook Marketplace 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 Facebook Marketplace

Monitor Facebook MarketplaceWatch Facebook Marketplace for new listing for a query and price drop.Change detection Turn Facebook Marketplace into an APIRead Facebook Marketplace item price from a REST endpoint.REST Facebook Marketplace MCP toolsLet your agent check Facebook Marketplace prices.For AI agents Automate Facebook MarketplaceTurn Facebook Marketplace into a callable workflow, no code required.Automation Extract structured data from Facebook MarketplacePull Facebook Marketplace pricing fields into clean JSON.Data
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faq

Facebook Marketplace price tracking questions

How does Facebook Marketplace price tracking work?
Writ sets up a Monitor on the Facebook Marketplace page you choose and reads the item 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 Facebook Marketplace price tracker I can install?
Yes. Point the recorder at the Facebook Marketplace page, mark the item price, and Writ builds a Monitor that reads it on a schedule. No catalog listing required; it takes minutes.
Can it act automatically when Facebook Marketplace drops to my price?
Yes. A price drop can trigger an approved workflow on your own authenticated Facebook Marketplace 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 Facebook Marketplace 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 item price or pushes it to a destination.
Is it allowed to track prices on Facebook Marketplace?
Use Writ on your own Facebook account and on content you are authorized to access. Respect its Terms of Service. Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.
rec ▸ ready ●

Track Facebook Marketplace 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