Fallow Cloud costs $20 per seat per month.

Twelve seats cost $240 a month. The first 30 days are a trial that needs no credit card, and nothing is charged until someone adds one. The open-source scan underneath stays free, and npx fallow runs today without an account.

Try Fallow Cloud free for 30 daysnpx fallow

Fallow CloudFree for 30 days

$20

Per seat per month, excluding VAT and sales tax, after a trial that needs no credit card

For teams that want to know how often production calls a function before they delete it, migrate it or review a change to it.

Everything in Fallow, plus:

A production call count for each function, from Node, Bun, Deno, serverless functions and the browser
The functions with zero calls in the last 7, 30 or 90 days
The functions production calls most
Production call counts in the terminal with fallow coverage analyze --cloud, and in the MCP server
A dashboard at fallow.cloud with the history of every deployment
Email alerts when the share of functions production calls drops below a floor you set, or when a service stops reporting
Team members, invites and API keys

Try Fallow Cloud free for 30 days

FallowFree, MIT

No account and no credit card

The open-source scan that Fallow Cloud is built on. It runs in the terminal, in CI, in VS Code and inside coding agents, and it stays free.

Unused files, exports and dependencies
Duplicated code and functions that grew too complex
Circular dependencies and layer rules
CSS that drifts from your design system
Opt-in security checks
More than 120 framework plugins
fallow audit in CI, which fails a pull request only on the problems it adds
JSON, SARIF and Markdown output, and an MCP server

npx fallowRead the quickstart

Enterprise

On request

Priced for your organization

For organizations whose security, legal or purchasing teams need more than a card payment.

Everything in Fallow Cloud, plus:

Help with your security review and its questionnaires
Payment by invoice and contract terms on request

Email hello@fallow.tools

Before you start the trial.

Who takes a seat

Each person with a fallow.cloud account in your organization takes one seat, developer or not. One engineer can start the trial alone and invite the rest of the team later. An engineer who only runs npx fallow needs no account and no seat.

What the trial needs

One production service with steady traffic. An engineer adds the package to that service and deploys it. On Node that is one setting. Bun, Deno and the browser need one extra build step.

A staging server with a few visits a day gives too few calls to act on within the 30 days.

Usage limits

Each function in an upload from the package counts as one function observation. During the trial, your organization can send 100,000 function observations and 100,000 uploads a month. On the paid plan, each seat adds 33,000,000 function observations and 3,333,333 uploads a month. Enterprise has no fixed limit.

Above the upload limit, Fallow Cloud keeps 1 in 10 uploads until the month ends. Above the function observation limit, it accepts no new uploads until the next month starts. Owners get an email at 75 and 90 percent of a limit and when it is reached. The terms of service have the full rules.

When the trial ends

Without a card on file, nothing is charged. Fallow Cloud stops accepting new call counts, and the free scan keeps running in CI and on every laptop. To keep the counts coming, you pick the paid plan and the number of seats.

What the package sends

Function names, file paths, line numbers, call counts, the commit, the project id and the environment name. It never sends arguments, return values, request data or user data. Source maps can contain source code, and you decide whether to upload them.

The network activity page lists every request the package makes. Fallow Cloud is hosted in the EU: the API and database run in Amsterdam, and stored files and database backups stay in the EU. The subprocessor list shows which companies handle the data and where.

Next to your APM

Datadog and New Relic sample requests to find the slow ones. A function that nobody calls never shows up in a sample. The package counts every call to each function it can see, which is how Fallow Cloud can list the ones with zero calls. You keep your APM for slow requests and errors.

What each plan includes.

The scan is the same in every plan. Fallow Cloud adds the production call counts and the service at fallow.cloud that keeps them.

Capabilities by plan
Capability	Fallow Cloud	Fallow	Enterprise
Price	Fallow Cloud: $20 per seat per month, excluding VAT and sales tax	Fallow: $0	Enterprise: On request
Trial	Fallow Cloud: 30 days, no credit card	Fallow: Not needed	Enterprise: 30 days, no credit card
Account needed	Fallow Cloud: Yes	Fallow: No	Enterprise: Yes
Production call counts per function	Fallow Cloud: Yes	Fallow: No	Enterprise: Yes
Where the counts come from	Fallow Cloud: Node, Bun, Deno, serverless, browser	Fallow: No counts	Enterprise: Node, Bun, Deno, serverless, browser
Dashboard windows	Fallow Cloud: 7, 30 and 90 days	Fallow: No dashboard	Enterprise: 7, 30 and 90 days
Email alerts	Fallow Cloud: Yes	Fallow: No	Enterprise: Yes
Monthly usage limit	Fallow Cloud: 33,000,000 function observations and 3,333,333 uploads per seat	Fallow: None, it runs on your machines	Enterprise: No fixed limit
Dead code, duplication and complexity	Fallow Cloud: Yes	Fallow: Yes	Enterprise: Yes
Architecture, styling and security checks	Fallow Cloud: Yes	Fallow: Yes	Enterprise: Yes
`fallow audit` as a pull-request check	Fallow Cloud: Yes	Fallow: Yes	Enterprise: Yes
CLI, VS Code extension and MCP server	Fallow Cloud: Yes	Fallow: Yes	Enterprise: Yes
Where it runs	Fallow Cloud: Hosted in the EU (Amsterdam)	Fallow: On your machines	Enterprise: Hosted in the EU (Amsterdam)
Data processing addendum	Fallow Cloud: Yes	Fallow: Not needed	Enterprise: Yes
Payment	Fallow Cloud: Through Stripe	Fallow: None	Enterprise: Invoice on request

Try it on one production service.

Add the package to a service with steady traffic and deploy. After the first report, you can look up how often production called each of its functions. For a larger rollout or a security review, email hello@fallow.tools.