Cross-session memory for AI agents with a Source Receipt for every memory, over MCP.
Connect Remote server
claude mcp add --transport http memory https://cairn.ink/api/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"memory": {
"url": "https://cairn.ink/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"memory": {
"type": "http",
"url": "https://cairn.ink/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://cairn.ink/api/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server asks for a key before it lists its tools. Connect it with your own key to see them.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. Bearer <personal access token> from https://cairn.ink/settings/tokens. Clients that support OAuth discover authentication automatically and can omit this header. |
Details
| Endpoint | https://cairn.ink/api/mcp (Streamable HTTP) |
| First published | 25 Sep 2026 |
| Last updated | 25 Sep 2026 |
| Registry name | ink.cairn/memory |
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