FAQs

Vertex is Web of Trust as a Service built on top of the nostr social graph. It provides reputation scores to offer personalized discovery and recommendations, as well as protection against impersonations and spam.

We provide DVMs that make doing social graph analysis as simple as publishing an event. Check out our services and hit our relay at:

wss://relay.vertexlab.io

If you need help, don’t hesitate to ask Pip.

Yes! Vertex offers a generous free tier, but there is more. All reputable pubkeys receive 100 free daily credits to use Vertex’s features at no cost. If you exceed the free credits, usage is billed based on the credits your requests consume.

To learn more, check out this post and our pricing page.

Vertex continuously processes profile events from the nostr network and applies ranking algorithms like Pagerank to determine reputation scores.

Thanks to our advanced algorithms, we calculate the scores in real-time using the latest available data from a wide array of relays.

Yes, our services can help you prioritize reputable users, power-up discovery and filter out low-quality content. Learn how here

Yes, you simply need to specify it in the sort param of the request. We currently support followerCount, globalPagerank, and personalizedPagerank.

To learn more, check out our algorithms.

On nostr there is no global state. However, our crawler gathers profile data from multiple relays to provide the most comprehensive view of the network. To maintain data quality and prevent spam attacks, we implement systems that filter out low-quality profiles and mitigate abuse.

Our endpoints always return signed nostr events that can be cached by clients, shared between them, or kept locally for offline usage.

Our endpoints always return signed nostr events, so you just need to verify the signature. For more details, check out the verification section.

Yes, we have proudly open sourced all of our code here on our Github.

We are committed to open standards, and that’s why our services are structured as NIP-90 Data Vending Machines.

All Vertex responses are cryptographically signed. However, there is no trustless way to know that a response is legitimate except by running our code on the same data.

We are currently exploring client-side validation schemes so your users will be able to verify independently.

Vertex only processes publicly available data from the Nostr network.
We don’t log requests, we respect user privacy and will honor any legitimate requests for content removal.

Check out our credits endpoint.

Just ask Pip