APIs · head to head
curl vs Marqeta
curl
APIs
Command-line tool for transferring data using URLs with wide protocol support
- From
- Free
- Rated
- -
Marqeta
APIs
Card issuing and transaction processing APIs with just-in-time funding
- From
- On request
- Rated
- -
The short version
- Only curl has a free tier, so it costs nothing to try first.
- 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; Marqeta you still need a sponsor bank and a BIN, so the timeline and compliance burden of launching are set by a bank you must separately court and satisfy.
- They diverge on capability: curl covers HTTP/HTTPS, Marqeta covers Just-in-time funding.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which curl and Marqeta actually diverge.
Identical on both: user rating (Not yet rated), category (APIs).
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 Marqeta
- Just-in-time funding
- Virtual and physical issuing
- Spend controls
- Programme management tools
- Multi-region issuing
- Webhooks and ledger data
What people use each for
The jobs each tool is most often brought in to do.
curl
- API Developmentnot Marqeta
- API Gatewaynot Marqeta
- API Testingnot Marqeta
- API Documentationnot Marqeta
- Microservicesnot Marqeta
Marqeta
- A delivery marketplace funding courier cards only at the moment a courier pays for the ordernot curl
- An expense platform issuing a virtual card per subscription with merchant locksnot curl
- A lender issuing a card that draws on an approved credit line rather than a stored balancenot curl
- A fintech wanting the same issuing stack across US and European programmesnot 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
Marqeta
- You still need a sponsor bank and a BIN, so the timeline and compliance burden of launching are set by a bank you must separately court and satisfy.
- Pricing carries minimum monthly platform commitments, so a programme with modest card volume pays for capacity it never uses.
- Programme revenue depends heavily on interchange, which means regulated debit interchange caps and European interchange caps materially change the business case by market.
- Disputes, chargebacks and fraud losses sit with the programme, and teams that assumed the processor absorbed them discover a real operations headcount requirement.
- Just-in-time funding makes your own authorisation endpoint a hard availability dependency; if it is slow or down, cards decline at the point of sale.
Pricing, plan by plan
curl
Free- Open SourceFree
- Full curl functionality
- Community support
Marqeta
On request- Marqeta card issuing$undefined/year
- Minimum monthly platform fee plus per-transaction and per-active-card charges
- Interchange share negotiated between programme, processor and sponsor bank
- Sponsor bank required, with its own fees and approval process
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.
Choose Marqeta if
- You need just-in-time funding.
- You work on Web, REST API.
- You also want virtual and physical issuing.
Questions people ask
- Is curl or Marqeta better?
- Neither clearly leads. curl starts at Free and Marqeta at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, curl or Marqeta?
- curl has a free tier; the other does not. Paid plans start at Free for curl and On request for Marqeta.
- Does curl or Marqeta run on more platforms?
- curl runs on Linux, MacOS, Windows, Unix, Mobile. Marqeta runs on Web, REST API.
- Can I use curl for free?
- Yes. curl has a free tier, so you can try it without paying. Marqeta starts at On request.
- 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 Marqeta is typically brought in for.
- What can curl do that Marqeta cannot?
- curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility. Marqeta covers Just-in-time funding, Virtual and physical issuing, Spend controls, Programme management tools.
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.
SourceMarqeta: Do I need a sponsor bank?
Yes. Marqeta is an issuer processor, not a bank. Card programmes run on a sponsor bank BIN, and that bank approves and supervises your programme.
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.
SourceMarqeta: How does the pricing really work?
A minimum monthly platform fee plus per-transaction and per-active-card charges, offset by a negotiated share of interchange. The interchange split is the substance of the deal.
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.
SourceMarqeta: What is just-in-time funding?
Marqeta calls your endpoint at authorisation so you decide and fund each transaction, rather than pre-loading balances onto cards.
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