Filesystem vs Sequesign

A side-by-side look at the Filesystem and Sequesign MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Filesystem logoFilesystemFile Systems · Local subprocess (stdio)Secure file operations with configurable access controls.85ExcellentAuth: no auth requiredSequesign logoSequesignCryptography · Local subprocess (stdio)Cryptographically verifiable receipts of an agent's delegated work, verified offline.53GoodAuth: not declared

Verdict: choose Filesystem for file systems work as a local process; choose Sequesign for cryptography as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Filesystem logoChoose Filesystem when

  • You need dedicated capabilities in the File Systems domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like path, head, tail.
Explore Filesystem

Sequesign logoChoose Sequesign when

  • You need dedicated capabilities in the Cryptography domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like sequesign_start_session, sequesign_record_action, sequesign_record_approval.
Explore Sequesign

Feature & specification comparison

Rows where the two servers differ are marked.

SpecFilesystem logoFilesystemSequesign logoSequesign
CategoryFile SystemsCryptography
Quality signal85/100 · Excellent53/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNo auth requiredNot declared
PricingFreeNot declared
Required env varsNone listedNone listed
Verified owner VerifiedCommunity listing
GitHub stars91,5120
Directory activity 11 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
Tools178

Tools & capabilities

Filesystem tools 17

  • path
  • head
  • tail
  • paths
  • content
  • edits
  • oldText
  • newText
  • dryRun
  • sortBy
  • source
  • destination
  • +5 more on the listing page

Sequesign tools 8

  • sequesign_start_sessionOpen a recording session (one signed action chain). Returns a `sessionId` (the receipt id) used by every other tool. Pass a `policyContext` object to bind the receipt to a policy (reaches `L3_POLICY_BOUND`). Optional `mode` (`direct`/`managed`) overrides the server default per session.
  • sequesign_record_actionAppend a signed action to the chain. `evidence` is hashed and signed. Returns the `actionId`.
  • sequesign_record_approvalAttach a locally signed approval for a recorded action (e.g. a human or agent reviewer signing off).
  • sequesign_record_counterparty_attestationAttach a counterparty's signed confirmation of a recorded action (e.g. a vendor confirming an amount). The SDK derives the content binding from the attested action.
  • sequesign_approve_receiptAttach an independently-witnessed **approval** to an *already-sealed* receipt (a deferred satellite). For a reviewer — human or another agent — signing off after the fact. The approver must be distinct from the recording agent.
  • sequesign_countersign_receiptAttach an independently-witnessed **counterparty confirmation** to an *already-sealed* receipt (a deferred satellite), bound to a specific action.
  • sequesign_finalizeSeal + witness the receipt and run the SDK's own verification. Closes the session.
  • sequesign_verifyVerify a sealed receipt offline. Three modes: integrity self-check of the local package (default); third-party `external` check when you pass the witness's published keys; or pass `receiptUrl` to verify the broker-**stored** receipt (the authoritative copy carrying the registered identity), auto-fe…

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Filesystem

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem"
      ]
    }
  }
}

Sequesign

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "sequesign": {
      "command": "npx",
      "args": [
        "-y",
        "@sequesign/mcp"
      ]
    }
  }
}

Frequently asked questions

Filesystem is categorized under File Systems and uses a local stdio subprocess. Sequesign belongs to Cryptography and uses a local stdio subprocess. Pick Filesystem for file systems work and Sequesign for cryptography.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Filesystem is listed as free. Auth: no auth required. Sequesign has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add filesystem and sequesign as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Filesystem has a quality signal of 85/100 (Excellent) with 11 views, 0 installs and 91,512 GitHub stars. Sequesign has 53/100 (Good) with 0 views, 0 installs and 0 GitHub stars.