nostr-read-mcp
A read-only MCP server for AI agents to access Nostr profiles, notes, search, and relay lists through user-chosen relays, without requiring an account or keys.
README
nostr-read-mcp
A small, read-only Nostr MCP server for local AI agents (Claude Code and any other MCP client). It lets your agent read the Nostr network — profiles, notes, full-text search, and relay lists — through relays you choose. No account, no keys, no third-party API.
Built on nostr-tools, Bun-native, ~210 lines.
Read-only by construction
There is no signing, publishing, zapping, DM, or private-key code in this server. It cannot write to Nostr and reads no secrets — so there's nothing to leak and no deny-list to maintain. The only configuration is which relays to read from.
Tools
| Tool | What it does |
|---|---|
nostr_get_profile |
Kind-0 metadata (name, nip05, lud16, about) for a pubkey |
nostr_get_notes |
Recent notes (kind 1 by default) for a pubkey, newest first |
nostr_query |
Generic filter — authors, kinds, ids, tags (#e/#p/#t), since/until, limit |
nostr_search |
NIP-50 full-text search across search-capable relays |
nostr_get_relay_list |
NIP-65 (kind 10002) read/write relays for a pubkey |
nostr_nip19 |
Decode/encode npub/nprofile/note/nevent (pure local, no network) |
Pubkeys may be given as hex, npub…, or nprofile….
Install
Requires Bun.
git clone <this-repo> nostr-read-mcp
cd nostr-read-mcp
bun install
Register with an MCP client
Add to your client's MCP server config. For Claude Code (~/.claude.json → mcpServers):
"nostr": {
"command": "bun",
"args": ["/path/to/nostr-read-mcp/index.ts"],
"env": {}
}
Then restart the client so it loads the server.
Configuration (optional env)
| Var | Default | Purpose |
|---|---|---|
NOSTR_RELAYS |
damus, nostr.band, nos.lol, primal, purplepag.es | Comma-separated read relays |
NOSTR_SEARCH_RELAYS |
search.nos.today, relay.nostr.band, relay.noswhere.com | NIP-50 search relays |
NOSTR_TIMEOUT_MS |
8000 |
Per-query timeout |
Multiple search relays are configured for redundancy — any single one is often down, and the pool aggregates across whichever answer.
License
MIT — see LICENSE.
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