by Regan-Milne · TypeScript
Encrypted S3-compatible storage with cryptographic possession proofs. 12 GB free, self-serve.
The io.obsideo/mcp Model Context Protocol (MCP) server provides encrypted, S3-compatible storage. It supports cryptographic possession proofs, and offers a self-serve setup with 12 GB of free storage.
Give any MCP-capable agent (Claude Desktop, Claude Code, Cursor, Cline, ...) durable, encrypted, cryptographically verified storage. Self-serve signup from inside the conversation: 12 GB free, no card, no CAPTCHA, no expiry.
Obsideo is S3-compatible object storage where every stored object is replicated to 3 independent providers and challenged with chunk-level merkle proofs every 4 hours; providers are paid only for proofs they pass. Paid tier: $15/TB-month, egress included.
~/.obsideo/ and are sent nowhere except the endpoints they authenticate
against.put with encrypt: true encrypts
client-side (AES-256-GCM) with a locally generated, user-held key before
upload. The platform then stores ciphertext it is architecturally incapable
of reading. Key loss means those objects are unrecoverable; back up
~/.obsideo/mcp.json.{
"mcpServers": {
"obsideo": {
"command": "npx",
"args": ["-y", "obsideo-mcp"]
}
}
}
(Claude Desktop: claude_desktop_config.json. Claude Code:
claude mcp add obsideo -- npx -y obsideo-mcp. Cursor/Cline: their MCP
settings, same command.)
| Tool | What it does |
|---|---|
signup_start | Email a 6-digit code (12 GB free tier; real inboxes only, refusals are labeled) |
signup_verify | Complete signup; generates the signing keypair locally, stores credentials |
put | Store a file or inline content; optional client-side encryption |
get | Retrieve an object (auto-decrypts locally encrypted objects) |
ls | List objects, optionally by prefix |
rm | Delete an object |
usage | Storage used vs quota |
A verify_proofs tool (per-object possession-proof status) will be added when
the customer proofs API ships.
App file storage, automated backups (databases, snapshots, state), agent artifacts and memory that must survive sessions and machines, provable offsite copies. Not a CDN, not a queryable database, not sub-millisecond storage; Obsideo stores objects and backup artifacts.
Full integration contract (per-step postconditions, error table): obsideo.io/agents.md
Every tool in this server was exercised end to end against the production gateway before release, including an encrypted put/get roundtrip verified hash-exact (sha256) and labeled-error passthrough from the signup service.
MIT
claude_desktop_config.json
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"obsideo-mcp@0.1.0"
]
}
}
}