While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Company details

  1. Software Company

Written by the company

Siamo Openapi, il più grande Marketplace di API in Europa. Dal 2013 rendiamo possibile alle aziende l'accesso a centinaia di servizi e dati ufficiali e affidabili tramite API.


Contact info

2.3

Poor

TrustScore 2.5 out of 5

57 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 4% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 1 out of 5 stars

Scammers — unauthorised charges, no support, GDPR violation

We purchased their German vehicle data API for our software business. The data quality was extremely
poor — almost unusable for our needs. We decided not to continue using the service.

Without our permission, they automatically charged €50 to our account. We contacted them via email to
request a refund and account deletion. No response at all.

We then deleted our account through their website, but the account was never actually deleted — we can
still use "forgot password" and receive credential emails, proving our data is still in their system.
This is a clear GDPR violation (Article 17 — Right to Erasure).

We would advise anyone to be very careful before entering payment details on this platform. Read other
reviews here — our experience is not unique.

10 March 2026
Unprompted review
Show reviews in all languages. (57 reviews)

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look