Softwr

APIs · head to head

Asyncapi vs Tink

Asyncapi logo

Asyncapi

APIs

Specification and tools for defining asynchronous APIs

From
Free
Rated
-
Full reviewWebsite
Tink logo

Tink

APIs

European open banking platform for account data and payment initiation

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Asyncapi has a free tier, so it costs nothing to try first.
  • Each has a real cost: Asyncapi complex to implement and debug asynchronous operations due to their non-linear and concurrent nature; Tink visa owns Tink, and pay-by-bank exists to move payments off card rails, so the roadmap and pricing of the product you are using to reduce interchange are set by the company that earns the interchange.
  • They diverge on capability: Asyncapi covers API Specification, Tink covers Account data access.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Asyncapi and Tink actually diverge.

Attributes where Asyncapi and Tink differ
AttributeAsyncapiTink
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
PlatformsWeb, CLI, IDE ExtensionsAPI, Web
Founded2019Unknown

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 Asyncapi

  • API Specification
  • Code generation
  • Documentation
  • Multiple messaging protocols
  • Code generators
  • Specification support
  • Tools support
  • CLI support

Only in Tink

  • Account data access
  • Payment initiation
  • EEA passporting
  • Categorisation
  • Account verification
  • Risk and affordability signals
  • Variable recurring payments support
  • Consent management

What people use each for

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

Asyncapi

  • API Developmentnot Tink
  • API Gatewaynot Tink
  • API Testingnot Tink
  • API Documentationnot Tink
  • Microservicesnot Tink

Tink

  • A European lender that needs verified income and expense data from a borrower bank account across several EEA markets under one licencenot Asyncapi
  • A merchant offering pay-by-bank at checkout to avoid card acceptance costs on high value basketsnot Asyncapi
  • A fintech that does not hold its own PSD2 licence and needs to operate under an authorised provider passported across the EEAnot Asyncapi
  • A bank building an account aggregation view of a customer external accounts without negotiating with each institution individuallynot Asyncapi

Where each one falls short

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

Asyncapi

  • Complex to implement and debug asynchronous operations due to their non-linear and concurrent nature
  • Keeping AsyncAPI documents up to date is challenging as systems evolve
  • Tracing and debugging asynchronous operations is more difficult than synchronous request-response patterns

Tink

  • Visa owns Tink, and pay-by-bank exists to move payments off card rails, so the roadmap and pricing of the product you are using to reduce interchange are set by the company that earns the interchange.
  • Coverage is Europe only, so a product serving both European and United States users runs a second aggregator with a different data model and a separate contract.
  • PSD2 connection quality varies sharply by bank, and headline connection counts hide wide differences in success rate, consent lifetime and re-authentication frequency that determine what users actually experience.
  • Consent under PSD2 expires and requires periodic re-authentication, so any product depending on continuous data access has a recurring user friction it cannot design away, and drop-off at re-consent is a real product problem.
  • Pricing is quoted with data access and payment initiation priced separately, and there is no published rate card, so small merchants cannot compare pay-by-bank economics against card acceptance without a sales process.

Pricing, plan by plan

Asyncapi

Free
  • Open SourceFree
    • AsyncAPI specification
    • Tools
    • Community support

Tink

On request
  • Tink Platform$undefined/year
    • Priced by product, market and volume
    • Data access and payment initiation priced separately
    • Annual commitments typical for enterprise agreements

Which should you pick?

Choose Asyncapi if

  • You need api specification.
  • You want to start without paying.
  • You work on Web, CLI, IDE Extensions.
  • You also want code generation.
Asyncapi review

Choose Tink if

  • You need account data access.
  • You work on API, Web.
  • You also want payment initiation.
Tink review

Questions people ask

Is Asyncapi or Tink better?
Neither clearly leads. Asyncapi starts at Free and Tink at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Asyncapi or Tink?
Asyncapi has a free tier; the other does not. Paid plans start at Free for Asyncapi and On request for Tink.
Does Asyncapi or Tink run on more platforms?
Asyncapi runs on Web, CLI, IDE Extensions. Tink runs on API, Web.
Can I use Asyncapi for free?
Yes. Asyncapi has a free tier, so you can try it without paying. Tink starts at On request.
What is Asyncapi best used for?
Asyncapi is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Tink is typically brought in for.
What can Asyncapi do that Tink cannot?
Asyncapi covers API Specification, Code generation, Documentation, Multiple messaging protocols. Tink covers Account data access, Payment initiation, EEA passporting, Categorisation.

Answered from the vendors’ own pages

Asyncapi: What is AsyncAPI used for?

AsyncAPI is an open-source specification for defining and documenting asynchronous APIs, message-driven systems, and event-driven architectures. It serves the same purpose for async APIs as OpenAPI does for REST APIs, providing standardized documentation, code generation, and tooling.

Source
Tink: Who owns Tink?

Visa, since 2022. That is directly relevant if you are adopting pay-by-bank specifically to reduce card costs.

Asyncapi: Is AsyncAPI free to use?

Yes, AsyncAPI is completely free and open-source. It is hosted by the Linux Foundation and supported by community contributions and sponsorships from companies like Postman, IBM, IQVIA Technology, and Solace.

Source
Tink: Do I need my own PSD2 licence?

No. Tink holds AIS and PIS licences from the Swedish FSA passported across the EEA, and customers can operate as its agent rather than obtaining their own authorisation.

Asyncapi: What protocols and technologies does AsyncAPI support?

AsyncAPI supports multiple protocols and technologies including Kafka, RabbitMQ, MQTT, Socket.IO, AWS EventBridge, and others. It provides language support for JavaScript/TypeScript, Python, Java, Go, C#/.NET, Kotlin, and PHP.

Source
Tink: Does Tink cover the United States?

No. It is a European platform. US coverage requires a separate provider.

Asyncapi: Does AsyncAPI have IDE support?

Yes, AsyncAPI has IDE extensions available for VSCode and IntelliJ, along with CLI utilities and GitHub Actions integration for developers.

Source
Tink: How reliable are the bank connections?

It varies by institution far more than the headline count of roughly 6,000 connections suggests. Ask for per market and per bank success rates and consent lifetimes for the banks your users actually hold accounts with.

Share

Related pages

More on Asyncapi

More on Tink

Keep looking

Other head to heads