Skip to content
mcp/skillhub

Crystal MCP Server

io.github.EraHQ/crystalv1.0.0

Self-curating memory your AI tools share: provenance, verified citations, and trust tiers.

remoteofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Active11d ago

Install Crystal MCP server

Install in Claude Code

claude mcp add --transport http crystal https://crystal-api-118881845105.us-east5.run.app/mcp

Remote endpoints

  • streamable-httphttps://crystal-api-118881845105.us-east5.run.app/mcp

Freshness

Active — last maintenance signal 11d ago. The newest of the signals below sets the band.

  1. Last commit (default branch)

    no data · GitHub

  2. Latest release

    no data · GitHub

  3. Package published

    no data · npm/PyPI

  4. Registry entry updated

    2026-09-28 · 11d ago · official registry · v1.0.0

FAQ

›How do I install the Crystal MCP server in Claude Code?

Run: claude mcp add --transport http crystal https://crystal-api-118881845105.us-east5.run.app/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Crystal require an API key?

No required environment variables are declared in its published metadata.

›Can I use Crystal as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is Crystal in the official MCP registry?

Yes, as io.github.EraHQ/crystal.

Alternatives to Crystal

Other memory MCP servers.

View all