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APIs · head to head

Portkey vs Svix

Portkey logo

Portkey

APIs

Observe, govern, and secure every AI interaction across your enterprise

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: Portkey the free Developer tier records only 10,000 logs per month with 3 day log retention; the $49 per month Production tier raises that to 100,000 logs with $9 per additional 100,000 requests, as of August 2026.; 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.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Portkey and Svix actually diverge.

Attributes where Portkey and Svix differ
AttributePortkeySvix
Starting priceOn requestFree
Pricing modelUnknownPer month by message count
Free tierNoYes
PlatformsWebWeb, 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 Portkey

Nothing recorded that Svix does not also cover.

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.

Portkey

  • Accessing 1,600+ language models through unified API gatewaynot Svix
  • Monitoring and observing LLM behavior in production environmentsnot Svix
  • Managing costs and setting budget limits for AI spendingnot Svix
  • Implementing guardrails and PII redaction for secure AI interactionsnot 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 Portkey
  • A payments or fintech product whose customers need signature verification libraries in several languages they did not writenot Portkey
  • An engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logsnot Portkey
  • A platform with a small number of very slow customer endpoints that must not delay deliveries to everyone elsenot Portkey

Where each one falls short

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

Portkey

  • The free Developer tier records only 10,000 logs per month with 3 day log retention; the $49 per month Production tier raises that to 100,000 logs with $9 per additional 100,000 requests, as of August 2026.

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

Portkey

On request

No published plan breakdown. See the Portkey review.

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 Portkey if

Nothing in the data separates Portkey from Svix on the points above - pick on price and on how each one feels to use.

Portkey 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 Portkey or Svix better?
Neither clearly leads. Portkey 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, Portkey or Svix?
Svix has a free tier; the other does not. Paid plans start at On request for Portkey and Free for Svix.
Does Portkey or Svix run on more platforms?
Portkey runs on Web. 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. Portkey starts at On request.
What is Portkey best used for?
Portkey is most often used for accessing 1,600+ language models through unified api gateway, monitoring and observing llm behavior in production environments, managing costs and setting budget limits for ai spending, implementing guardrails and pii redaction for secure ai interactions. Of those, accessing 1,600+ language models through unified api gateway and monitoring and observing llm behavior in production environments are not what Svix is typically brought in for.
What can Portkey do that Svix cannot?
Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering.

Answered from the vendors’ own pages

Portkey: What happens if I exceed my Portkey plan's request limit?

Production tier ($49/month) charges $9 per additional 100,000 requests beyond the included 100,000. Enterprise customers have custom limits determined through their service agreement. Source: https://portkey.ai/pricing

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.

Portkey: Can I self-host Portkey to avoid per-request billing?

Yes. Portkey offers an Open Source self-hosted version with unlimited requests at no cost, including universal API, routing, guardrails, and load balancing features. Source: https://portkey.ai/pricing

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.

Portkey: How long does Portkey retain my logs and metrics?

Free Developer tier retains logs 3 days and metrics 30 days. Production tier retains logs 30 days and metrics 90 days. Enterprise tier offers custom retention periods. Source: https://portkey.ai/pricing

Source
Svix: What counts as a message?

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

Portkey: What compliance features are included in the Enterprise plan?

Enterprise tier includes SOC2 Type 2 certification, GDPR compliance, HIPAA compliance, VPC hosting, SSO, advanced guardrails, and dedicated support. Custom pricing required. Source: https://portkey.ai/pricing

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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