Nostr Relay

The Vertex Relay is the core endpoint that powers Vertex services. It provides free, reliable access to high-quality profile events and statistics (NIP-45) aggregated from a comprehensive range of relays.

wss://relay.vertexlab.io

Example use cases:

• Querying profile information without the risk of spam or low-quality data.
• Bootstrap social graphs with the most up-to-date events.
• Find users’ preferred relays and blossom servers.
• Search profiles using NIP-50

Features

Profile Discovery

The relay stores high-quality profile events.

• kind:0 profile event
• kind:3 follow list
• kind:10000 mute list
• kind:10002 relay list
• kind:10063 blossom server list

This makes it easy for applications to find the latest profiles or follow lists, and bootstrap social graphs without having to scout the whole network.

NIP-50 Search

Search profiles (kind:0) using NIP-50 filters.

// example NIP-50 REQ
["REQ", "<sub_id>", { "kinds": [0], "search": "jack" } ]

Note: NIP-50 is widely supported across relays, but results are limited to raw Nostr events.
For ranking metadata and signed, auditable responses, use the Search Profiles endpoint instead.

Read-Only Operation

To ensure the highest data quality and prevent spam, Vertex Relay operates in a read-only mode. Only our optimised crawler writes to the database, ensuring a consistent, up-to-date and spam-free experience.

Rate Limiting

The relay applies IP-based rate limiting for all client’s requests like EVENT, REQ, COUNT, and all API calls. The limit is 200 events per minute, or 1000 filters per minute.