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API
Relays

Buzz Relay

Online
wss://buzz.nostr21.net

Buzz — private team communication relay

Auth
ScoreScore: 75

Connection

Connect
1.8 s
Read
36 ms
Write
—n/a
Network
Clearnet
Last checked
2 hours ago
Last online
2 hours ago

Uptime

Last 24 hours
100%
Last 7 days
100%
Each bar is one check (every 6 hours), newest on the right.

Popularity

Listed by users
0
as read relay
0
as write relay
0
NIP-66 monitors
1
Notes in the last hour
—n/a

Access & policy

Authentication (NIP-42)
Yes
Payment required
No
Restricted writes
Yes
Sends AUTH challenge
Yes
Minimum PoW (NIP-13)
None
Write test
Rejected: auth-required: not authenticated

Limits

Max message length
524K
Max subscriptions
1,024
Max filter limit
10K
Max content length
—n/a
Max event tags
—n/a

Overview

Software
buzz
Version
0.2.0
Contact
—n/a
Countries
—n/a
Languages
—n/a
First seen
Nov 4, 2026, 3:49 PM UTC
Discovered via
nip66

NIP-11 document

{
  "name": "Buzz Relay",
  "description": "Buzz — private team communication relay",
  "self": "9dcaed0ed0408661db03af7769b0790b1569726aab5033334f28768f3e403081",
  "supported_nips": [
    1,
    2,
    10,
    11,
    16,
    17,
    23,
    25,
    29,
    33,
    38,
    42,
    43,
    50,
    56
  ],
  "software": "https://github.com/block/buzz",
  "version": "0.2.0",
  "limitation": {
    "max_message_length": 524288,
    "max_subscriptions": 1024,
    "max_limit": 10000,
    "max_subid_length": 256,
    "auth_required": true,
    "payment_required": false,
    "restricted_writes": true
  }
}

Use this data

View JSON
curl
curl "/api/v1/relays/buzz.nostr21.net"