How to choose a digital credentialing platform

Most digital credentialing platforms look similar in a demo. The differences show up two years in, when the platform’s architectural decisions start dictating what you can and cannot do with the credentials you have already issued.

This is a buyer’s checklist. Five questions that distinguish platforms that will still be useful in five years from ones that will not.

1. Are credentials issued as W3C Verifiable Credentials?

The W3C Verifiable Credentials standard is the only credential format with a stable, vendor-neutral verification model. A VC carries its own cryptographic proof. Anyone can verify it without contacting the issuing platform.

Some platforms issue proprietary badges. Some support OpenBadges 2.0, which uses hosted JSON verification. Neither survives the issuing platform going offline.

Ask vendors to send you a sample credential as a downloadable file. Open it in a generic JSON viewer. If the credential’s type field includes VerifiableCredential and there is a proof object, you have a real VC. If the platform sends you a URL or an image, you do not.

For technical background on what a VC actually is, read What are verifiable credentials?.

2. Can the credential be verified without the platform?

This is the test that exposes whether a credential is portable in practice or only in marketing.

Take a sample credential. Try to verify it using a third-party tool — for example, an open-source VC verifier, or a different credentialing platform that consumes VCs. If verification works, the credential is genuinely vendor-neutral. If verification fails because it cannot resolve the issuer’s keys, or because the platform’s verification endpoint is hardcoded, the credential is locked to the vendor.

The right answer is: a credential issued through the platform verifies anywhere, indefinitely, through any compliant verifier.

3. How does the pricing scale with what you actually do?

Per-seat pricing punishes growth. Every member, every certified recipient, every alum that joins your program adds to your annual contract. The platform’s incentive becomes adding more recipients to your list, not delivering better credentials.

Credit-based pricing aligns incentives differently. You pay per credential issued. Costs scale with throughput, not with the size of your community.

Watch for these red flags in vendor pricing:

• Annual recipient caps that drive upgrades. If your seat count would force a tier change at year-end, you are paying for sales optimization rather than for the product.
• Credits that expire. Unused credits should be yours indefinitely. Expiry is a vendor’s way of forcing usage you might not need.
• “Custom” pricing above modest volumes. When pricing is opaque past a certain threshold, you are negotiating against the vendor’s quota.

For a deeper read on this dynamic, see The hidden cost of per-seat credentialing pricing.

4. Does the platform host verification on your domain or theirs?

Recipients share credentials. Hiring managers click verify links. Every verification link is a marketing impression for whoever owns the domain.

A platform that hosts verification on its own subdomain (verify.vendorname.com) sends every recipient’s network to the vendor’s brand. A platform that lets you host verification on your own domain (verify.youraccount.com) keeps that traffic to you. Over thousands of credentials and tens of thousands of shares, this matters.

The same point applies to the recipient portal where credentials live. Whose domain is in the URL bar when your alum shows their credential to a future employer?

5. Does the platform commit to long-term credential portability?

This question gets dismissive answers in sales calls. Press for specifics.

What you want to hear:

• Credentials are W3C VCs, so they are independently verifiable through any compliant tool.
• The platform publishes the issuer’s public keys on a domain you control, so verifiers resolve them from a source you own.
• Customer data exports include credential JSON, recipient lists, and templates in open formats.
• The verifier is open-source or self-hostable, so you can stand one up inside your own perimeter.

What is concerning:

• Vague reassurances about “data portability” without specifics.
• Credentials stored in a proprietary format that requires the platform to render.
• Verification that runs only through the vendor’s API.
• Customer data exports that are CSV-only and exclude credential proofs.

A good acid test: ask the vendor what your migration path looks like if you decide to move providers. A platform that has a clear answer is one that has thought about its responsibility to your recipients. A platform that gets defensive is one that has built lock-in into the product.

A short list of questions to send vendors

Paste these into a procurement email and you will quickly see which platforms have thought this through.

1. Are credentials issued as W3C Verifiable Credentials by default? If so, send a sample.
2. Can a third-party verifier (not your own) validate a credential we have issued? Show us.
3. What is the per-credential price at 10,000 credentials per year? At 100,000?
4. Can we host verification on our own domain? At which plan tier?
5. What does our migration path to another provider look like, if we ever want one?

The answers will tell you more about the platform than any sales deck.

Where Credostar lands on each question

For transparency, here is how we answer each one:

1. W3C VCs by default. Every credential we issue is a W3C VC and an OpenBadges 3.0 badge. Sample credentials are available from the verifier.
2. Third-party verification works. Credentials verify through any compliant W3C VC verifier, including open-source implementations.
3. Credit-based pricing, credits never expire. Published per-credential pricing at every tier.
4. Custom domain verification. Available on Premium and Enterprise plans, no contract minimum.
5. Self-hostable verifier on Enterprise. Issuer keys publishable on your domain. Migration to another W3C VC platform is supported in open formats.

If you would like to evaluate Credostar against this checklist, apply for early access to the Design Partner Program.