Is curl or Lago better?

Neither clearly leads. curl starts at Free and Lago at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, curl or Lago?

curl starts at Free and Lago at Free.

Does curl or Lago run on more platforms?

curl runs on Linux, MacOS, Windows, Unix, Mobile. Lago runs on Web, Cloud, Self-hosted, On-premise, VPC.

Can I use curl for free?

Both have a free tier, so you can try either at no cost before committing.

What is curl best used for?

curl is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Lago is typically brought in for.

What can curl do that Lago cannot?

curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility. Lago covers Real-time usage metering, Multiple pricing models, Automated invoicing, Prepaid credits.

APIs · head to head

curl vs Lago

curl

APIs

Command-line tool for transferring data using URLs with wide protocol support

From: Free
Rated: -

Full review Website

Lago

Accounting

Open-source billing infrastructure for usage-based models

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: curl open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply; Lago free tier limited to 10,000 entities per month with 5M event cap
They diverge on capability: curl covers HTTP/HTTPS, Lago covers Real-time usage metering.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which curl and Lago actually diverge.

Attributes where curl and Lago differ
Attribute	curl	Lago
Pricing model	open-source	Freemium with optional paid tiers
Platforms	Linux, MacOS, Windows, Unix, Mobile	Web, Cloud, Self-hosted, On-premise, VPC
Category	APIs	Accounting
Founded	1997	Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in curl

HTTP/HTTPS
FTP
Multiple protocols
Universal compatibility
Scripting tools
Linux support
MacOS support
Windows support

Only in Lago

Real-time usage metering
Multiple pricing models
Automated invoicing
Prepaid credits
Entitlements
Multi-currency support
Payment orchestration
Revenue analytics

What people use each for

The jobs each tool is most often brought in to do.

curl

API Developmentnot Lago
API Gatewaynot Lago
API Testingnot Lago
API Documentationnot Lago
Microservicesnot Lago

Lago

Building usage-based billing for high-volume APIs and infrastructurenot curl
Implementing metered billing for AI and tokenized servicesnot curl
Creating subscription and hybrid pricing modelsnot curl
Managing multi-currency billing for global companiesnot curl
Maintaining billing infrastructure without vendor lock-innot curl

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

curl

Open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply
Commercial support costs hidden: site references 'commercial support available' but pricing is not detailed or accessible from homepage
No SaaS model: curl is a command-line tool and library; costs are limited to optional commercial support contracts (pricing unknown)
Self-support burden: free software means customers rely on community forums or undisclosed commercial support pricing

Lago

Free tier limited to 10,000 entities per month with 5M event cap
No specific pricing published for Pro annual plan or Scale plan
Self-hosted and on-premise deployments require engineering resources
Community support only on free tier
Scale plan requires annual contracts and sales engagement

Pricing, plan by plan

curl

Free

Open SourceFree
- Full curl functionality
- Community support

Lago

Free

Build (Free)Free
- 10,000 managed entities per month
- 5M usage events per month
- 1K events per second rate limit
Pro$399/month
- 10,000 entities included (graduated pricing to 100K)
- 25M usage events included (to 500M with graduated rates)
- 10K events per second (upgradeable to 100K)
Scale$null/custom
- Custom entity and event volumes
- 50K events per second (upgradeable to 100K)
- RBAC and SSO (SAML)

Which should you pick?

Choose curl if

You need http/https.
You want to start without paying.
You work on Linux, MacOS, Windows, Unix, Mobile.
You also want ftp.

curl review

Choose Lago if

You need real-time usage metering.
You want to start without paying.
You work on Web, Cloud, Self-hosted, On-premise, VPC.
You also want multiple pricing models.

Lago review

Questions people ask

Is curl or Lago better?: Neither clearly leads. curl starts at Free and Lago at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, curl or Lago?: curl starts at Free and Lago at Free.
Does curl or Lago run on more platforms?: curl runs on Linux, MacOS, Windows, Unix, Mobile. Lago runs on Web, Cloud, Self-hosted, On-premise, VPC.
Can I use curl for free?: Both have a free tier, so you can try either at no cost before committing.
What is curl best used for?: curl is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Lago is typically brought in for.
What can curl do that Lago cannot?: curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility. Lago covers Real-time usage metering, Multiple pricing models, Automated invoicing, Prepaid credits.

Answered from the vendors’ own pages

curl: How much does curl cost?

curl is free and open-source software under the GPL 3.0 license. There is no cost to download, use, or modify the software.

Source

Lago: Can I use Lago open-source for free?

Yes, Lago is open-source under the AGPLv3 license and can be self-hosted. The cloud-based Build plan is also free with limits of 10,000 entities and 5M events per month.

Source

curl: Is commercial support available for curl?

Yes. The curl website references 'commercial support available,' but pricing and details are not disclosed on the homepage and require visiting the support page.

Source

Lago: What payment providers does Lago integrate with?

Lago integrates with Stripe and Adyen for payment processing. It is not a payment processor itself but orchestrates payments through these providers.

Source

curl: Can I sponsor curl financially?

Yes. The curl website offers an option to 'Sponsor curl financially.' Visitors can donate to support curl development, but the donation link must be accessed through the site's support section.

Source

Lago: Does Lago support multiple currencies?

Yes, Lago supports multi-currency billing with automatic currency conversion for global businesses.

Source

curl vs Lago

curl

Lago

The short version

Where they differ

What each one covers

Only in curl

Only in Lago

What people use each for

curl

Lago

Where each one falls short

curl

Lago

Pricing, plan by plan

curl

Lago

Which should you pick?

Choose curl if

Choose Lago if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on curl

More on Lago

Keep looking

Other head to heads