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APIs · head to head

Svix vs Weavr

Svix logo

Svix

APIs

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

From
Free
Rated
-
Full reviewWebsite
Weavr logo

Weavr

APIs

Packaged embedded finance for B2B SaaS, with an in-house EU e-money licence

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Svix has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Weavr products are packaged rather than open, so a flow Weavr does not support is not something you can build around, and you discover the limits after integrating.
  • They diverge on capability: Svix covers Automatic retries, Weavr covers Plug-and-play products.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Svix and Weavr actually diverge.

Attributes where Svix and Weavr differ
AttributeSvixWeavr
Starting priceFreeOn request
Pricing modelPer month by message countquote
Free tierYesNo
PlatformsWeb, Cloud, DockerWeb, 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 Svix

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

Only in Weavr

  • Plug-and-play products
  • Regulated cover
  • Card issuing
  • Multi-currency accounts
  • Identity and onboarding
  • Data insights

What people use each for

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

Svix

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

Weavr

  • A project management SaaS adding expense cards without hiring a compliance officernot Svix
  • A marketplace paying out sellers from accounts held inside its own productnot Svix
  • A procurement platform issuing virtual cards against approved purchase ordersnot Svix
  • A European SaaS vendor wanting a regulated entity to sit behind its financial featuresnot Svix

Where each one falls short

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

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.

Weavr

  • Products are packaged rather than open, so a flow Weavr does not support is not something you can build around, and you discover the limits after integrating.
  • Programme economics depend on interchange, and SaaS vendors routinely overestimate how much card volume their customers will actually route through the embedded product.
  • It is a small company with limited headcount supporting a regulated dependency, which is a real concentration risk for a feature your customers rely on.
  • Monthly minimums on card programmes mean a slow-adopting customer base leaves you paying for volume you never reach.
  • European interchange caps hold programme revenue well below what US embedded finance case studies suggest, so imported business cases do not transfer.

Pricing, plan by plan

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

Weavr

On request
  • Weavr embedded finance$undefined/year
    • Platform subscription plus per-account and per-card fees
    • Interchange share negotiated as part of the commercial terms
    • Monthly minimums apply to card programmes

Which should you pick?

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

Choose Weavr if

  • You need plug-and-play products.
  • You work on Web, REST API.
  • You also want regulated cover.
Weavr review

Questions people ask

Is Svix or Weavr better?
Neither clearly leads. Svix starts at Free and Weavr at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Svix or Weavr?
Svix has a free tier; the other does not. Paid plans start at Free for Svix and On request for Weavr.
Does Svix or Weavr run on more platforms?
Svix runs on Web, Cloud, Docker. Weavr runs on Web, REST API.
Can I use Svix for free?
Yes. Svix has a free tier, so you can try it without paying. Weavr starts at On request.
What is Svix best used for?
Svix is most often used for a saas company adding webhooks to its api that does not want to build retry, signing and a customer debugging ui from scratch, a payments or fintech product whose customers need signature verification libraries in several languages they did not write, an engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logs, a platform with a small number of very slow customer endpoints that must not delay deliveries to everyone else. Of those, a saas company adding webhooks to its api that does not want to build retry, signing and a customer debugging ui from scratch and a payments or fintech product whose customers need signature verification libraries in several languages they did not write are not what Weavr is typically brought in for.
What can Svix do that Weavr cannot?
Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering. Weavr covers Plug-and-play products, Regulated cover, Card issuing, Multi-currency accounts.

Answered from the vendors’ own pages

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.

Weavr: Do I need my own financial licence?

No. Weavr holds an e-money licence, including a Maltese authorisation for the EU, and acts as the regulated entity for the embedded product.

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.

Weavr: How is it different from a banking-as-a-service API?

It sells finished product shapes with compliance built in rather than raw banking primitives, which trades flexibility for a much shorter route to launch.

Svix: What counts as a message?

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

Weavr: How does Weavr make money?

Platform fees plus per-account and per-card charges, with a negotiated share of card interchange.

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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