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APIs · head to head

Ably vs Marqeta

Ably logo

Ably

APIs

Realtime data delivery platform for pub/sub messaging at scale

From
Free
Rated
-
Full reviewWebsite
Marqeta logo

Marqeta

APIs

Card issuing and transaction processing APIs with just-in-time funding

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Ably has a free tier, so it costs nothing to try first.
  • Each has a real cost: Ably standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.; 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: Ably covers Pub/sub messaging, 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 Ably and Marqeta actually diverge.

Attributes where Ably and Marqeta differ
AttributeAblyMarqeta
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
Platformsweb, ios, android, apiWeb, REST API

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 Ably

  • Pub/sub messaging
  • Presence
  • Message persistence
  • Multi-protocol support
  • Encryption
  • Datadog integration

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.

Ably

  • Building realtime chat or collaborative appsnot Marqeta
  • Delivering live data feeds like stock prices or sports scoresnot Marqeta
  • Broadcasting notifications to many concurrent clientsnot Marqeta
  • Running mission-critical realtime infrastructure with high uptime SLAsnot Marqeta

Marqeta

  • A delivery marketplace funding courier cards only at the moment a courier pays for the ordernot Ably
  • An expense platform issuing a virtual card per subscription with merchant locksnot Ably
  • A lender issuing a card that draws on an approved credit line rather than a stored balancenot Ably
  • A fintech wanting the same issuing stack across US and European programmesnot Ably

Where each one falls short

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

Ably

  • Standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.
  • The jump from Standard ($29/month) to Pro ($399/month) is steep for teams needing more than 10k connections but not full Pro capacity.
  • 24/7 mission-critical support and 99.999% uptime SLAs are reserved for the custom-priced Enterprise tier.

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

Ably

Free
  • FreeFree
    • 200 concurrent connections
    • 500 messages/second
    • 6M messages/month
  • Standard$29/month
    • 10k concurrent channels
    • 10k concurrent connections
    • 2.5k messages/second
  • Pro$399/month
    • 50k concurrent channels
    • 50k concurrent connections
    • 10k messages/second

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 Ably if

  • You need pub/sub messaging.
  • You want to start without paying.
  • You work on web, ios, android, api.
  • You also want presence.
Ably review

Choose Marqeta if

  • You need just-in-time funding.
  • You work on Web, REST API.
  • You also want virtual and physical issuing.
Marqeta review

Questions people ask

Is Ably or Marqeta better?
Neither clearly leads. Ably 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, Ably or Marqeta?
Ably has a free tier; the other does not. Paid plans start at Free for Ably and On request for Marqeta.
Does Ably or Marqeta run on more platforms?
Ably runs on web, ios, android, api. Marqeta runs on Web, REST API.
Can I use Ably for free?
Yes. Ably has a free tier, so you can try it without paying. Marqeta starts at On request.
What is Ably best used for?
Ably is most often used for building realtime chat or collaborative apps, delivering live data feeds like stock prices or sports scores, broadcasting notifications to many concurrent clients, running mission-critical realtime infrastructure with high uptime slas. Of those, building realtime chat or collaborative apps and delivering live data feeds like stock prices or sports scores are not what Marqeta is typically brought in for.
What can Ably do that Marqeta cannot?
Ably covers Pub/sub messaging, Presence, Message persistence, Multi-protocol support. Marqeta covers Just-in-time funding, Virtual and physical issuing, Spend controls, Programme management tools.

Answered from the vendors’ own pages

Ably: What does Ably cost?

Ably offers a free plan with 200 concurrent connections, a Standard plan at $29/month plus usage, a Pro plan at $399/month plus usage, and custom Enterprise pricing with unlimited channels and connections.

Source
Marqeta: 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.

Ably: Is there a free plan, and what are its limits?

Yes, the free plan includes 200 concurrent connections, 500 messages per second, and 6 million messages per month with community and best-effort email support.

Source
Marqeta: 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.

Ably: How is usage metered?

Beyond plan limits, Ably charges usage-based rates of $2.50 per million messages, $1.00 per million connection minutes, $1.00 per million channel minutes, and $0.25 per GiB of data transfer, with volume discounts available.

Source
Marqeta: 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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