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APIs · head to head

Paymentology vs Stoplight

Paymentology logo

Paymentology

APIs

Cloud issuer processing across emerging and developed markets

From
On request
Rated
-
Full reviewWebsite
Stoplight logo

Stoplight

APIs

API design, documentation, and governance platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Stoplight has a free tier, so it costs nothing to try first.
  • Each has a real cost: Paymentology paymentology processes but does not hold issuing licences, so every market still needs your own licence or a sponsor bank, which is usually the slowest and most expensive part of a launch.; Stoplight the free plan allows one project and one user
  • They diverge on capability: Paymentology covers Global issuer processing, Stoplight covers API Design.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Paymentology and Stoplight actually diverge.

Attributes where Paymentology and Stoplight differ
AttributePaymentologyStoplight
Starting priceOn requestFree
Pricing modelquotesubscription
Free tierNoYes
PlatformsWeb, APIWeb, Cloud
FoundedUnknown2014

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 Paymentology

  • Global issuer processing
  • Real time transaction data
  • Virtual and physical issuance
  • Tokenisation
  • Multi currency and multi product
  • Card controls
  • Programme management tools
  • Fraud and risk integration

Only in Stoplight

  • API Design
  • API Documentation
  • Governance
  • GitHub
  • GitLab
  • Jenkins
  • Azure DevOps
  • Web support

What people use each for

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

Paymentology

  • A neobank launching cards in an African or South East Asian market where hosted United States processors have no certificationnot Stoplight
  • A mobile money operator adding a card product on top of an existing wallet basenot Stoplight
  • A bank consolidating several regional card processors onto one platformnot Stoplight
  • A fintech expanding an existing card programme into the Gulf without re platformingnot Stoplight

Stoplight

  • API design and documentationnot Paymentology
  • API governance and standardsnot Paymentology
  • Team collaboration on API developmentnot Paymentology
  • API mocking and testingnot Paymentology

Where each one falls short

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

Paymentology

  • Paymentology processes but does not hold issuing licences, so every market still needs your own licence or a sponsor bank, which is usually the slowest and most expensive part of a launch.
  • Fees include per active card charges and monthly minimums, so a portfolio with many dormant cards pays for plastic that generates no interchange.
  • Certification, settlement and scheme relationships differ by country, so a multi market rollout is a series of separate projects rather than one integration.
  • As a processor it sits between your product and the networks, meaning outages and scheme mandate changes reach your cardholders through a party you do not control.
  • Documentation and developer self service are weaker than the United States hosted processors, so early integration depends heavily on Paymentology implementation staff.

Stoplight

  • The free plan allows one project and one user
  • Private projects, multi branch support and custom domains start at the Startup plan, $113 a month billed annually
  • SSO and shared style guides are Pro Team only, at $362 a month billed annually
  • Seats beyond each plan's allowance are $11 to $27 each per month depending on tier and billing period

Pricing, plan by plan

Paymentology

On request
  • Paymentology processing$undefined/year
    • Quoted per programme and per market
    • Typically per transaction and per active card fees plus a monthly minimum
    • Issuing licence or sponsor bank required in each market and not provided

Stoplight

Free
  • FreeFree
    • 1 project
    • 1 user
    • Basic API design and documentation features
  • Basic$56/month
    • Annual: $44/user/year
    • 3 included users; $14 per additional user (monthly)
    • Unlimited projects
  • Startup$147/month
    • Annual: $113/user/year
    • 8 included users; $14 per additional user (monthly)
    • Private projects
  • Pro Team$453/month
    • Annual: $362/user/year
    • 15 included users; $27 per additional user (monthly)
    • Up to 20 teams

Which should you pick?

Choose Paymentology if

  • You need global issuer processing.
  • You work on Web, API.
  • You also want real time transaction data.
Paymentology review

Choose Stoplight if

  • You need api design.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want api documentation.
Stoplight review

Questions people ask

Is Paymentology or Stoplight better?
Neither clearly leads. Paymentology starts at On request and Stoplight at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Paymentology or Stoplight?
Stoplight has a free tier; the other does not. Paid plans start at On request for Paymentology and Free for Stoplight.
Does Paymentology or Stoplight run on more platforms?
Paymentology runs on Web, API. Stoplight runs on Web, Cloud.
Can I use Stoplight for free?
Yes. Stoplight has a free tier, so you can try it without paying. Paymentology starts at On request.
What is Paymentology best used for?
Paymentology is most often used for a neobank launching cards in an african or south east asian market where hosted united states processors have no certification, a mobile money operator adding a card product on top of an existing wallet base, a bank consolidating several regional card processors onto one platform, a fintech expanding an existing card programme into the gulf without re platforming. Of those, a neobank launching cards in an african or south east asian market where hosted united states processors have no certification and a mobile money operator adding a card product on top of an existing wallet base are not what Stoplight is typically brought in for.
What can Paymentology do that Stoplight cannot?
Paymentology covers Global issuer processing, Real time transaction data, Virtual and physical issuance, Tokenisation. Stoplight covers API Design, API Documentation, Governance, GitHub.

Answered from the vendors’ own pages

Paymentology: Does Paymentology provide the BIN and licence?

No. You need your own issuing licence or a sponsor bank in each market; Paymentology processes the transactions.

Stoplight: How much does Stoplight cost?

Stoplight starts with a free plan (1 project, 1 user), then Basic at $56/month per user (or $44/year), Startup at $147/month per user (or $113/year), Pro Team at $453/month per user (or $362/year), and Enterprise at custom pricing.

Source
Paymentology: What is the actual pricing model?

Per transaction and per active card, with a monthly minimum. Dormant cards still cost, so model your activation rate.

Stoplight: How many included users are in each Stoplight plan?

Basic includes 3 users, Startup includes 8 users, and Pro Team includes 15 users. Additional users beyond the included count cost $14/month for Basic and Startup, or $27/month for Pro Team.

Source
Paymentology: Why choose it over a United States issuer processor?

Network certification and live programmes in markets where those processors do not operate, which decides feasibility rather than preference.

Stoplight: Does Stoplight offer a free trial?

Yes, all paid Stoplight plans include a 14-day free trial. The free plan has no trial period as it is always available.

Source
Stoplight: Does Stoplight's free plan have limitations?

Yes, the free plan includes only 1 project and 1 user. Users viewing public documentation anonymously are not counted toward the 1-user limit.

Source
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