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APIs · head to head

Sanity vs Svix

Sanity logo

Sanity

APIs

Headless CMS with real-time collaborative editing and structured content APIs

From
Free
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

  • Each has a real cost: Sanity free plan limited to 10,000 documents and 100GB assets; 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: Sanity covers Content API, Svix covers Automatic retries.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Sanity and Svix actually diverge.

Attributes where Sanity and Svix differ
AttributeSanitySvix
Pricing modelfreemiumPer month by message count
PlatformsWebWeb, Cloud, Docker
Founded2011Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Sanity

  • Content API
  • Collaborative editing
  • Structured content
  • Webhooks
  • Third-party services
  • GROQ query language
  • Cloud support
  • JavaScript SDK support

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.

Sanity

  • Headless CMS for structured content managementnot Svix
  • Collaborative content editing with real-time multiplayer supportnot Svix
  • API-driven content delivery with GROQ query languagenot 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 Sanity
  • A payments or fintech product whose customers need signature verification libraries in several languages they did not writenot Sanity
  • An engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logsnot Sanity
  • A platform with a small number of very slow customer endpoints that must not delay deliveries to everyone elsenot Sanity

Where each one falls short

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

Sanity

  • Free plan limited to 10,000 documents and 100GB assets
  • Free plan supports only public datasets
  • Growth plan capped at 50 seats maximum
  • Private datasets, scheduled drafts, and comments/tasks require paid plans
  • Annual billing unavailable for Growth plan; Enterprise-only

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

Sanity

Free
  • FreeFree
    • Up to 20 seats
    • 2 public datasets only
    • 10,000 documents included
  • Growth$15/month
    • Up to 50 seats per seat
    • 2 private or public datasets
    • 25,000 documents included
  • Enterprise$null/month
    • Custom seats
    • Custom datasets
    • Custom document limits

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 Sanity if

  • You need content api.
  • You want to start without paying.
  • You also want collaborative editing.
Sanity 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 Sanity or Svix better?
Neither clearly leads. Sanity starts at Free and Svix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Sanity or Svix?
Sanity starts at Free and Svix at Free.
Does Sanity or Svix run on more platforms?
Sanity runs on Web. Svix runs on Web, Cloud, Docker.
Can I use Sanity for free?
Both have a free tier, so you can try either at no cost before committing.
What is Sanity best used for?
Sanity is most often used for headless cms for structured content management, collaborative content editing with real-time multiplayer support, api-driven content delivery with groq query language. Of those, headless cms for structured content management and collaborative content editing with real-time multiplayer support are not what Svix is typically brought in for.
What can Sanity do that Svix cannot?
Sanity covers Content API, Collaborative editing, Structured content, Webhooks. Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering.

Answered from the vendors’ own pages

Sanity: What does the Sanity Free plan include?

The Free plan includes up to 20 seats, 2 public datasets, 10,000 documents, 1 million API CDN requests per month, and 2 permission roles.

Source
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.

Sanity: How much does Sanity Growth plan cost per user?

The Growth plan costs $15 per seat per month, with up to 50 seats, and includes 25,000 documents, 1 million API CDN requests, and 5 permission roles.

Source
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.

Sanity: What is included in Sanity Enterprise pricing?

Enterprise pricing is custom and requires contacting sales. It includes custom seat limits, custom datasets, Single Sign-On, and dedicated support.

Source
Svix: What counts as a message?

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

Sanity: Does Sanity offer annual billing discounts?

Annual and invoice payment options are available exclusively for Enterprise customers. Self-serve plans (Free and Growth) use monthly billing only.

Source
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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