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Developer Tools · head to head

Hookdeck vs Vespa

Hookdeck logo

Hookdeck

Developer Tools

Event gateway that receives, queues, retries and replays inbound webhooks

From
Free
Free plan
Yes
Visit HookdeckFull review
Vespa logo

Vespa

Databases

Distributed AI search platform for retrieval, ranking, and inference

From
Free
Free plan
Yes
Visit VespaFull review

The short version

  • Vespa is an open-source distributed serving engine.
  • Vespa is free; Hookdeck starts at $39/mo.
  • Only Hookdeck lists ingest and persist; only Vespa lists vector search.
  • Where Hookdeck falls short: pricing meters delivered events, so fan-out multiplies the bill: one inbound event routed to four services counts as four deliveries.
  • Where Vespa falls short: pricing not publicly listed, requires contacting sales.
  • Prices and features on this page were last checked on 31 August 2026.

Where they differ

Only the attributes on which Hookdeck and Vespa actually diverge.

Attributes where Hookdeck and Vespa differ
AttributeHookdeckVespa
Pricing modelPer month by delivered event countContact-sales
PlatformsWeb, Linux, macOS, WindowsWeb, Self-hosted
CategoryDeveloper ToolsDatabases

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

Not yet recorded: founded for Hookdeck.

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 Hookdeck

  • Ingest and persist
  • Automatic retries
  • Filters and fan-out
  • Transformations
  • Local development CLI
  • Rate limiting

Only in Vespa

  • Vector search
  • Text and structured search
  • Machine-learned ranking
  • Real-time serving
  • SQL interface
  • Automatic scaling
  • Open-source

What people use each for

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

Hookdeck

  • A payments integration where losing a Stripe event during a deploy causes an order to go unfulfillednot Vespa
  • Fanning one provider webhook out to several internal services without each subscribing separatelynot Vespa
  • Debugging a partner integration by replaying the exact failing payload after shipping a fixnot Vespa
  • Receiving production-shaped webhooks on a developer laptop without running a public tunnelnot Vespa

Vespa

  • Build RAG systems with semantic search over documentsnot Hookdeck
  • Power e-commerce search with ML rankingnot Hookdeck
  • Create recommendation engines for personalizationnot Hookdeck
  • Implement real-time search for news or feedsnot Hookdeck
  • Deploy private semantic search over sensitive datanot Hookdeck

Where each one falls short

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

Hookdeck

  • Pricing meters delivered events, so fan-out multiplies the bill: one inbound event routed to four services counts as four deliveries
  • Free-tier retention is three days, which is shorter than the time it typically takes to notice a failing integration, so the payloads needed for a replay are often already gone
  • It becomes a single point of failure in front of every third-party integration, and an outage there means every provider webhook queues or fails at once
  • The transformation layer runs JavaScript in a constrained environment, so anything that needs a database lookup or an external call has to happen downstream instead
  • For a team already running Kafka or SQS the value is mostly the console and the replay UI, which is a hard cost to justify against infrastructure they already operate

Vespa

  • Pricing not publicly listed, requires contacting sales
  • Steeper learning curve compared to simpler search tools
  • Operational complexity for self-hosted deployments
  • Smaller ecosystem compared to cloud-native alternatives

Pricing, plan by plan

Hookdeck

Free
  • DeveloperFree
    • Up to ten thousand events per month
    • Three-day retention
    • One user
  • Team$39/mo
    • Ten thousand events included
    • Unlimited users
    • Pay as you go metering above the included events
  • Growth$499/mo
    • Ten thousand events included plus metered usage
    • Thirty-day retention
    • Uptime and latency SLAs
  • EnterpriseOn request
    • Negotiated event volume
    • Custom retention
    • Dedicated support

Vespa

Free

No published plan breakdown. See the Vespa review.

Which should you pick?

Choose Hookdeck if

  • You need ingest and persist.
  • You want to start without paying.
  • You work on Web, Linux, macOS, Windows.
  • You also want automatic retries.
Hookdeck review

Choose Vespa if

  • You need vector search.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want text and structured search.
Vespa review

Questions people ask

Is Hookdeck or Vespa better?
Neither clearly leads. Hookdeck starts at Free and Vespa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Hookdeck or Vespa?
Hookdeck starts at Free and Vespa at Free.
Does Hookdeck or Vespa run on more platforms?
Hookdeck runs on Web, Linux, macOS, Windows. Vespa runs on Web, Self-hosted.
Can I use Hookdeck for free?
Both have a free tier, so you can try either at no cost before committing.
What is Hookdeck best used for?
Hookdeck is most often used for a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled, fanning one provider webhook out to several internal services without each subscribing separately, debugging a partner integration by replaying the exact failing payload after shipping a fix, receiving production-shaped webhooks on a developer laptop without running a public tunnel. Of those, a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled and fanning one provider webhook out to several internal services without each subscribing separately are not what Vespa is typically brought in for.
What can Hookdeck do that Vespa cannot?
Hookdeck covers Ingest and persist, Automatic retries, Filters and fan-out, Transformations. Vespa covers Vector search, Text and structured search, Machine-learned ranking, Real-time serving.

Answered from the vendors’ own pages

Hookdeck: Is there a free plan?

Yes, ten thousand events a month with three-day retention and one user.

Vespa: Is Vespa open-source?

Yes, Vespa is open-source under the Apache 2.0 license. The code is available on GitHub, and you can self-host or use the managed cloud service.

Source
Hookdeck: How is usage counted?

By delivered events, so a single inbound webhook fanned out to three destinations counts as three.

Vespa: What latency can Vespa achieve?

Vespa is designed for sub-100 millisecond latencies with thousands of queries per second, suitable for real-time search and recommendation applications.

Source
Hookdeck: Can I replay a failed webhook?

Yes, individually or in bulk from the console, with the original payload.

Vespa: Does Vespa support vector search?

Yes, Vespa provides native vector search capabilities alongside text, structured data, and tensor operations for building comprehensive search and AI applications.

Source
Hookdeck: Does it work for outbound webhooks too?

Yes, the same queueing, retry and observability applies to webhooks you send.

Vespa: What is the pricing model for Vespa Cloud?

Vespa Cloud pricing is not publicly listed and requires contacting their sales team to discuss your specific use case and scale requirements.

Source
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