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Relays

ONOSENDAI Official Relay

Online
wss://relay.onosendai.tech

The default relay for ONOSENDAI and Cyberspace v2: movement chains, hidden bags and their sealed entries, objects, avatars, seed DNA and tends, and the Nostr plumbing they use, and NIP-17 DMs (gift wraps). Anyone may publish those kinds; nothing else is accepted. Reading is open, except a gift wrap: only its recipient, authenticated with NIP-42, can read or count it.

Read-only
ScoreScore: 78

Connection

Connect
601 ms
Read
97 ms
Write
—n/a
Network
Clearnet
Last checked
28 minutes ago
Last online
28 minutes 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
1
as read relay
0
as write relay
1
NIP-66 monitors
1
Notes in the last hour
0

Access & policy

Authentication (NIP-42)
No
Payment required
No
Restricted writes
No
Sends AUTH challenge
Yes
Minimum PoW (NIP-13)
None
Write test
Rejected: not allowed: event kind is not whitelisted

Limits

Max message length
524K
Max subscriptions
50
Max filter limit
500
Max content length
—n/a
Max event tags
—n/a

Overview

Software
cyberspace-relay
Version
dev
Contact
—n/a
Countries
US
Languages
en, en-US
First seen
Nov 13, 2026, 6:25 AM UTC
Discovered via
nip65, nip66

NIP-11 document

{
  "name": "ONOSENDAI Official Relay",
  "description": "The default relay for ONOSENDAI and Cyberspace v2: movement chains, hidden bags and their sealed entries, objects, avatars, seed DNA and tends, and the Nostr plumbing they use, and NIP-17 DMs (gift wraps). Anyone may publish those kinds; nothing else is accepted. Reading is open, except a gift wrap: only its recipient, authenticated with NIP-42, can read or count it.",
  "banner": "https://npub1arkn0xxxll4llgy9qxkrncn3vc4l69s0dz8ef3zadykcwe7ax3dqrrh43w.blossom.band/ab4b8ed950b2a9b3bb8682d7a1704f7cf63871017978b136374c20c3fcaf347c.png",
  "icon": "https://relay.onosendai.tech/static/icons/onosendai-logo.png",
  "pubkey": "e8ed3798c6ffebffa08501ac39e271662bfd160f688f94c45d692d8767dd345a",
  "supported_nips": [
    1,
    7,
    9,
    11,
    17,
    19,
    40,
    42,
    45,
    50,
    55,
    59,
    65,
    70,
    86,
    98
  ],
  "software": "https://github.com/arkin0x/cyberspace-relay",
  "version": "dev",
  "relay_countries": [
    "US"
  ],
  "language_tags": [
    "en",
    "en-US"
  ],
  "tags": [
    "cyberspace",
    "onosendai"
  ],
  "limitation": {
    "max_message_length": 524288,
    "max_subscriptions": 50,
    "max_limit": 500,
    "auth_required": false,
    "payment_required": false,
    "restricted_writes": false,
    "created_at_lower_limit": 1577836800,
    "created_at_upper_limit": 1794551582
  }
}

Use this data

View JSON
curl
curl "/api/v1/relays/relay.onosendai.tech"