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APIs · head to head

Episode Six vs Zeplo

Episode Six logo

Episode Six

APIs

Payment processing and ledger platform deployable on premise or in your own cloud

From
On request
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

  • Only Zeplo has a free tier, so it costs nothing to try first.
  • Each has a real cost: Episode Six deployment on premise or in a private tenancy means the institution carries infrastructure, upgrade and PCI scope work that a hosted processor would absorb.; 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: Episode Six covers Tritium API platform, Zeplo covers URL prefix interface.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Episode Six and Zeplo actually diverge.

Attributes where Episode Six and Zeplo differ
AttributeEpisode SixZeplo
Starting priceOn requestFree
Pricing modelquotePer month by request count
Free tierNoYes
PlatformsWeb, API, On-premiseWeb, Cloud

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 Episode Six

  • Tritium API platform
  • Flexible deployment
  • Multi product issuing
  • Digital wallets
  • Multi currency ledger
  • Network connectivity
  • Configurable product engine
  • Institutional controls

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.

Episode Six

  • A bank in a jurisdiction with data residency rules that forbid processing customer data in a shared multi tenant cloudnot Zeplo
  • A large institution replacing a legacy card processor without moving off its own infrastructurenot Zeplo
  • A telco or airline launching a branded wallet and card product at national scalenot Zeplo
  • A bank running prepaid, debit and credit products that wants them on one ledger rather than three processorsnot Zeplo

Zeplo

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

Where each one falls short

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

Episode Six

  • Deployment on premise or in a private tenancy means the institution carries infrastructure, upgrade and PCI scope work that a hosted processor would absorb.
  • Implementation runs to quarters and involves core banking, network certification and fraud system integration, so time to first card is far longer than with a self serve issuer processor.
  • Pricing is entirely bespoke and weighted to large programmes, which prices out fintechs and small issuers who would be better served by a hosted platform.
  • Being smaller than the incumbent processors, its network certifications and operational presence vary by region, so a global rollout can find gaps in specific markets.
  • The flexibility of six hundred APIs and a configurable product engine shifts design responsibility onto the buyer, and institutions without strong internal payments architects end up dependent on professional services.

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

Episode Six

On request
  • Tritium platform$undefined/year
    • Licence and implementation quoted per institution
    • Deployment model affects cost materially: on premise, private cloud or hosted
    • Processing fees typically per transaction or per active card

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 Episode Six if

  • You need tritium api platform.
  • You work on Web, API, On-premise.
  • You also want flexible deployment.
Episode Six 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 Episode Six or Zeplo better?
Neither clearly leads. Episode Six starts at On request and Zeplo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Episode Six or Zeplo?
Zeplo has a free tier; the other does not. Paid plans start at On request for Episode Six and Free for Zeplo.
Does Episode Six or Zeplo run on more platforms?
Episode Six runs on Web, API, On-premise. Zeplo runs on Web, Cloud.
Can I use Zeplo for free?
Yes. Zeplo has a free tier, so you can try it without paying. Episode Six starts at On request.
What is Episode Six best used for?
Episode Six is most often used for a bank in a jurisdiction with data residency rules that forbid processing customer data in a shared multi tenant cloud, a large institution replacing a legacy card processor without moving off its own infrastructure, a telco or airline launching a branded wallet and card product at national scale, a bank running prepaid, debit and credit products that wants them on one ledger rather than three processors. Of those, a bank in a jurisdiction with data residency rules that forbid processing customer data in a shared multi tenant cloud and a large institution replacing a legacy card processor without moving off its own infrastructure are not what Zeplo is typically brought in for.
What can Episode Six do that Zeplo cannot?
Episode Six covers Tritium API platform, Flexible deployment, Multi product issuing, Digital wallets. Zeplo covers URL prefix interface, Retries with backoff, Delayed delivery, Cron scheduling.

Answered from the vendors’ own pages

Episode Six: Can Episode Six run inside our own data centre?

Yes. On premise and private cloud deployment is the main reason banks choose it over hosted only processors.

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.

Episode Six: Is it suitable for a startup issuing its first cards?

Not really. The licence, implementation timeline and cost are aimed at banks and large institutions.

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.

Episode Six: Do we still need a card licence or sponsor?

Yes. Episode Six is a processor. Network membership, licensing or a sponsor arrangement remains your responsibility.

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.

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