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APIs · head to head

Marqeta vs Svix

Marqeta logo

Marqeta

APIs

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

From
On request
Rated
-
Full reviewWebsite
Svix logo

Svix

APIs

Outbound webhook sending as a service, with retries, signing and a customer-facing portal

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Svix has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Svix the Professional tier at 490 US dollars a month includes the same 50,000 messages as the free tier, so the upgrade buys SLA, throughput and retention rather than volume, which is a jarring step for a growing product.
  • They diverge on capability: Marqeta covers Just-in-time funding, Svix covers Automatic retries.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Marqeta and Svix actually diverge.

Attributes where Marqeta and Svix differ
AttributeMarqetaSvix
Starting priceOn requestFree
Pricing modelquotePer month by message count
Free tierNoYes
PlatformsWeb, REST APIWeb, Cloud, Docker

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 Marqeta

  • Just-in-time funding
  • Virtual and physical issuing
  • Spend controls
  • Programme management tools
  • Multi-region issuing
  • Webhooks and ledger data

Only in Svix

  • Automatic retries
  • Payload signing
  • Consumer portal
  • Event types and filtering
  • Delivery logs and replay
  • Rate limiting
  • Static source IPs
  • Language SDKs

What people use each for

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

Marqeta

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

Svix

  • A SaaS company adding webhooks to its API that does not want to build retry, signing and a customer debugging UI from scratchnot Marqeta
  • A payments or fintech product whose customers need signature verification libraries in several languages they did not writenot Marqeta
  • An engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logsnot Marqeta
  • A platform with a small number of very slow customer endpoints that must not delay deliveries to everyone elsenot Marqeta

Where each one falls short

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

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.

Svix

  • The Professional tier at 490 US dollars a month includes the same 50,000 messages as the free tier, so the upgrade buys SLA, throughput and retention rather than volume, which is a jarring step for a growing product.
  • Only attempted messages count toward usage, but a customer with many subscribed endpoints multiplies a single event into many billable messages, and forecasting that fan-out before launch is difficult.
  • The open source server is MIT licensed but trails the hosted product in features, so self-hosting is a fallback position rather than a genuinely equivalent option.
  • Routing outbound customer traffic through a third party puts a vendor in the delivery path for events your customers may treat as contractual, which some security reviews will not accept.
  • Payload retention is 30 days on the free tier and 90 on Professional, so anyone needing longer delivery history for audit must pay for Enterprise or log independently.

Pricing, plan by plan

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

Svix

Free
  • FreeFree
    • 50,000 messages a month included
    • Overage at $0.0001 per message
    • 99.9% uptime SLA
  • Professional$490/month
    • 50,000 messages included, same as free
    • 99.99% uptime SLA
    • 800 messages per second
  • Enterprise$undefined/year
    • Custom volume and rate limits
    • 99.999% uptime SLA
    • Custom retention

Which should you pick?

Choose Marqeta if

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

Choose Svix if

  • You need automatic retries.
  • You want to start without paying.
  • You work on Web, Cloud, Docker.
  • You also want payload signing.
Svix review

Questions people ask

Is Marqeta or Svix better?
Neither clearly leads. Marqeta starts at On request and Svix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Marqeta or Svix?
Svix has a free tier; the other does not. Paid plans start at On request for Marqeta and Free for Svix.
Does Marqeta or Svix run on more platforms?
Marqeta runs on Web, REST API. Svix runs on Web, Cloud, Docker.
Can I use Svix for free?
Yes. Svix has a free tier, so you can try it without paying. Marqeta starts at On request.
What is Marqeta best used for?
Marqeta is most often used for a delivery marketplace funding courier cards only at the moment a courier pays for the order, an expense platform issuing a virtual card per subscription with merchant locks, a lender issuing a card that draws on an approved credit line rather than a stored balance, a fintech wanting the same issuing stack across us and european programmes. Of those, a delivery marketplace funding courier cards only at the moment a courier pays for the order and an expense platform issuing a virtual card per subscription with merchant locks are not what Svix is typically brought in for.
What can Marqeta do that Svix cannot?
Marqeta covers Just-in-time funding, Virtual and physical issuing, Spend controls, Programme management tools. Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering.

Answered from the vendors’ own pages

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.

Svix: How much does Svix cost?

Free up to 50,000 messages a month; Professional starts at 490 US dollars a month with the same included volume but better SLA and throughput.

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.

Svix: Can I self-host it?

Yes, there is an MIT licensed server, but it lags the hosted service in features and has no SLA.

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.

Svix: What counts as a message?

Attempted or transformed deliveries. Retries and messages filtered out because no endpoint subscribed are not charged.

Svix: Does it handle inbound webhooks?

Its focus is outbound sending on behalf of API providers, not receiving webhooks from third parties.

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