Nostr MCP Server
MCP server enabling AI agents to interact with the Nostr protocol — a decentralized, censorship-resistant social networking protocol. Enables agents to publish notes (posts), query events from Nostr relays, search profiles, follow/unfollow users, and interact with Nostr's decentralized social graph through MCP tool calls.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Nostr nsec is cryptographic identity — protect absolutely. Published content is permanent and censorship-resistant. Decentralized model means no takedowns possible.
⚡ Reliability
Best When
A developer or researcher interested in decentralized social protocols wants AI agents to interact with Nostr — for publishing, research, or building Nostr-based applications.
Avoid When
You need centralized social media management (Twitter/X, LinkedIn, etc.) — Nostr's decentralized model is fundamentally different. Niche tool for the Nostr/Bitcoin community.
Use Cases
- • Publishing content to the Nostr decentralized network from content agents
- • Querying Nostr events and profiles from research agents
- • Monitoring specific Nostr public keys for content from tracking agents
- • Integrating Nostr social publishing into AI-driven content workflows
Not For
- • Teams needing centralized social platform features (Nostr is decentralized with no central moderation)
- • Production social media management without understanding Nostr's decentralized model
- • Users without Nostr key pairs (npub/nsec)
Interface
Authentication
Nostr private key (nsec) required for publishing. Public key (npub) for read-only queries. NEVER expose nsec — it controls your Nostr identity. Use read-only where possible.
Pricing
Free open source protocol. MCP server is free. Some relays may charge fees for publishing; many free relays exist.
Agent Metadata
Known Gotchas
- ⚠ CRITICAL: Nostr nsec (private key) controls identity — never expose in logs or tool parameters
- ⚠ Nostr events are cryptographically signed and immutable — cannot delete published content
- ⚠ Relay availability varies — queries across multiple relays improve reliability
- ⚠ Nostr is niche (primarily Bitcoin/cypherpunk community) — limited mainstream adoption
- ⚠ AustinKelsay is a known Nostr/Bitcoin developer — community-credible implementation
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.