Softwr

APIs · head to head

Lithic vs Svix

Lithic logo

Lithic

APIs

API-first card issuing platform with direct Visa, Mastercard and Amex network connections

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: Lithic pricing is entirely undisclosed, so a company cannot compare total cost against Marqeta, Galileo or Highnote without a sales conversation.; 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: Lithic covers Direct network connections, Svix covers Automatic retries.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Lithic and Svix actually diverge.

Attributes where Lithic and Svix differ
AttributeLithicSvix
Starting priceOn requestFree
Pricing modelquotePer month by message count
Free tierNoYes
PlatformsWeb, 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 Lithic

  • Direct network connections
  • Processor Client mode
  • Lithic Program Management
  • Card lifecycle APIs
  • Sandbox environment
  • Real-time authorization controls

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.

Lithic

  • A fintech wanting direct Visa or Mastercard network access rather than routing through a third-party processornot Svix
  • A company that already holds its own issuing licence and wants API access without full programme managementnot Svix
  • A neobank or expense platform wanting Lithic to manage bank and network relationships end to endnot Svix
  • A product team prototyping a card programme in sandbox before committing to a launchnot 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 Lithic
  • A payments or fintech product whose customers need signature verification libraries in several languages they did not writenot Lithic
  • An engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logsnot Lithic
  • A platform with a small number of very slow customer endpoints that must not delay deliveries to everyone elsenot Lithic

Where each one falls short

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

Lithic

  • Pricing is entirely undisclosed, so a company cannot compare total cost against Marqeta, Galileo or Highnote without a sales conversation.
  • Choosing Processor Client mode still leaves the company responsible for holding its own issuing licence and managing the regulatory relationship, which is a substantial undertaking many teams underestimate.
  • As with any card infrastructure provider, an outage or network issue at Lithic becomes a direct outage for every card programme built on it, and a customer has limited visibility into root cause during an incident.
  • Building a card programme on API infrastructure requires real engineering investment; it is not a plug-and-play product for a non-technical team.
  • Switching card infrastructure providers after launch is a major undertaking involving card reissuance and programme migration, so the initial choice carries lasting lock-in.

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

Lithic

On request
  • Lithic$undefined/year
    • Volume and interchange-based pricing, not published
    • Separate Processor Client and Program Management pricing tracks
    • Custom quote required via sales

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 Lithic if

  • You need direct network connections.
  • You work on Web, API.
  • You also want processor client mode.
Lithic 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 Lithic or Svix better?
Neither clearly leads. Lithic 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, Lithic or Svix?
Svix has a free tier; the other does not. Paid plans start at On request for Lithic and Free for Svix.
Does Lithic or Svix run on more platforms?
Lithic runs on Web, 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. Lithic starts at On request.
What is Lithic best used for?
Lithic is most often used for a fintech wanting direct visa or mastercard network access rather than routing through a third-party processor, a company that already holds its own issuing licence and wants api access without full programme management, a neobank or expense platform wanting lithic to manage bank and network relationships end to end, a product team prototyping a card programme in sandbox before committing to a launch. Of those, a fintech wanting direct visa or mastercard network access rather than routing through a third-party processor and a company that already holds its own issuing licence and wants api access without full programme management are not what Svix is typically brought in for.
What can Lithic do that Svix cannot?
Lithic covers Direct network connections, Processor Client mode, Lithic Program Management, Card lifecycle APIs. Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering.

Answered from the vendors’ own pages

Lithic: Does Lithic publish pricing?

No, pricing is volume-based and requires a sales conversation.

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.

Lithic: What is the difference between Processor Client and Program Management?

Processor Client suits companies with their own issuing licence and bank relationships; Program Management is for companies wanting Lithic to coordinate those relationships on their behalf.

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.

Lithic: Which networks does it connect to?

Visa, Mastercard and American Express directly.

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.

Share

Related pages

More on Lithic

More on Svix

Keep looking

Other head to heads