Softwr

APIs · head to head

Apidog vs Zeplo

Apidog logo

Apidog

APIs

All-in-one platform for API design, documentation, testing, and mocking

From
Free
Rated
-
Full reviewWebsite
Zeplo logo

Zeplo

APIs

Message queue as a URL prefix, adding retries and delays to any HTTP request

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apidog free plan is capped at 4 users, limiting larger teams from using it at no cost.; Zeplo zeplo sits directly in the execution path of your background work, so an outage at a very small vendor means your jobs do not run at all, and there is no published SLA below Enterprise.
  • They diverge on capability: Apidog covers API design and documentation, Zeplo covers URL prefix interface.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Apidog and Zeplo actually diverge.

Attributes where Apidog and Zeplo differ
AttributeApidogZeplo
Pricing modelfreemiumPer month by request count
Platformsweb, windows, mac, linuxWeb, Cloud

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 Apidog

  • API design and documentation
  • Mock servers
  • Automated testing
  • Team collaboration
  • Scheduled imports
  • Branded documentation

Only in Zeplo

  • URL prefix interface
  • Retries with backoff
  • Delayed delivery
  • Cron scheduling
  • Concurrency limits
  • Deduplication keys
  • Request logs
  • Team workspaces

What people use each for

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

Apidog

  • Designing and documenting APIs in a shared team workspacenot Zeplo
  • Mocking API responses for frontend development before backend is readynot Zeplo
  • Running automated API test suitesnot Zeplo
  • Replacing separate Postman, Swagger, and mock-server tools with one platformnot Zeplo

Zeplo

  • A Vercel or Cloudflare Workers application that needs retried background jobs without deploying a separate always-on workernot Apidog
  • A team that wants a webhook receiver protected by a concurrency limit so a burst does not overwhelm a downstream APInot Apidog
  • A small product needing cron jobs against HTTP endpoints without adding a scheduler to its infrastructurenot Apidog
  • A developer adding idempotent retries to an unreliable third-party API call with a one-line URL changenot Apidog

Where each one falls short

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

Apidog

  • Free plan is capped at 4 users, limiting larger teams from using it at no cost.
  • Faster scheduled imports and unlimited projects require the Professional tier or higher.
  • Smaller community and plugin ecosystem compared to long-established tools like Postman.
  • Advanced enterprise security controls require the top-tier Enterprise plan.

Zeplo

  • Zeplo sits directly in the execution path of your background work, so an outage at a very small vendor means your jobs do not run at all, and there is no published SLA below Enterprise.
  • The free Developer tier includes only 500 requests a month and one team member, so it is a demonstration allowance rather than a usable free plan for anything real.
  • Overage on the Developer tier is 20 US dollars per 100,000 requests, two hundred times the marginal rate on the Company tier, so exceeding the free allowance without upgrading is expensive.
  • Team members cost 15 US dollars each beyond the plan allowance, which is an odd charge on an infrastructure product billed by request volume.
  • Log retention is 30 days on both published tiers, so anything requiring longer audit trails on job execution has to be logged separately.

Pricing, plan by plan

Apidog

Free
  • FreeFree
    • Up to 4 users
    • Core design, mock, and testing features
  • Basic$9/month
    • Per-seat pricing billed annually
    • Expanded team collaboration
  • Professional$18/month
    • Unlimited projects
    • Team-level shared variables
    • Faster scheduled imports
  • Enterprise$27/month
    • Advanced admin and security controls
    • Priority support

Zeplo

Free
  • DeveloperFree
    • 500 requests a month included
    • $20 per additional 100,000 requests
    • 1 team member
  • Company$39/month
    • 1,000,000 requests a month included
    • $10 per additional million requests
    • Up to 3 team members
  • Enterprise$undefined/month
    • Volume discounts
    • Custom team size
    • Support with SLA

Which should you pick?

Choose Apidog if

  • You need api design and documentation.
  • You want to start without paying.
  • You work on web, windows, mac, linux.
  • You also want mock servers.
Apidog review

Choose Zeplo if

  • You need url prefix interface.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want retries with backoff.
Zeplo review

Questions people ask

Is Apidog or Zeplo better?
Neither clearly leads. Apidog starts at Free and Zeplo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apidog or Zeplo?
Apidog starts at Free and Zeplo at Free.
Does Apidog or Zeplo run on more platforms?
Apidog runs on web, windows, mac, linux. Zeplo runs on Web, Cloud.
Can I use Apidog for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apidog best used for?
Apidog is most often used for designing and documenting apis in a shared team workspace, mocking api responses for frontend development before backend is ready, running automated api test suites, replacing separate postman, swagger, and mock-server tools with one platform. Of those, designing and documenting apis in a shared team workspace and mocking api responses for frontend development before backend is ready are not what Zeplo is typically brought in for.
What can Apidog do that Zeplo cannot?
Apidog covers API design and documentation, Mock servers, Automated testing, Team collaboration. Zeplo covers URL prefix interface, Retries with backoff, Delayed delivery, Cron scheduling.

Answered from the vendors’ own pages

Apidog: What does Apidog cost?

Apidog offers a free plan for up to 4 users, with paid per-seat plans at roughly $9/month for Basic, $18/month for Professional, and $27/month for Enterprise when billed annually.

Source
Zeplo: How does Zeplo work?

You prefix your endpoint URL with zeplo.to and add query parameters for retries, delay, cron or concurrency. No SDK or broker is needed.

Apidog: Is there a free plan, and what are its limits?

The free plan supports up to 4 users with access to core design, documentation, mocking, and testing features.

Source
Zeplo: What does it cost?

Free for 500 requests a month; 39 US dollars a month for a million requests, then 10 dollars per additional million.

Apidog: Can I try paid plans before subscribing?

Paid plans include a 14-day free trial, giving teams full access to premium features before committing to a subscription.

Source
Zeplo: Is it suitable for critical jobs?

It is a small vendor in your execution path with no published SLA below Enterprise, so weigh that against the convenience.

Zeplo: Does it work with serverless platforms?

Yes, that is its main use, covering Vercel, Cloudflare Workers, Netlify and similar environments that lack long-running workers.

Share

Related pages

More on Apidog

More on Zeplo

Keep looking

Other head to heads