Elucora Evidence API vs Sequesign

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

Elucora Evidence API logoElucora Evidence APICryptography · Remote HTTP/SSECapture a web source, or seal a hash you hold, into a signed receipt anyone can verify offline.48FairAuth: not declaredSequesign logoSequesignCryptography · Local subprocess (stdio)Cryptographically verifiable receipts of an agent's delegated work, verified offline.53GoodAuth: not declared

Verdict: choose Elucora Evidence API for cryptography work over a hosted endpoint; 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?

Elucora Evidence API logoChoose Elucora Evidence API when

  • You need dedicated capabilities in the Cryptography domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like elucora_verify, elucora_get_receipt, elucora_capture.
Explore Elucora Evidence API

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.

SpecElucora Evidence API logoElucora Evidence APISequesign logoSequesign
CategoryCryptographyCryptography
Quality signal48/100 · Fair53/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars00
Directory activity 2 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
Tools48

Tools & capabilities

Elucora Evidence API tools 4

  • elucora_verifyChecks whether a receipt is genuine and unaltered, and what source bytes it covers.
  • elucora_get_receiptReads a receipt: source, sealed passage, signature status, Bitcoin anchor state.
  • elucora_captureFetches a public HTTP(S) source, preserves the original bytes, optionally pins an exact quote or JSON Pointer, and returns a signed receipt. Consumes quota and contacts the source.
  • elucora_attestSeals a SHA-256 hash the caller already holds, for content with no URL. Proves the content existed then and has not changed since — not where it came from. Consumes quota.

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.

Elucora Evidence API

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "elucora-evidence-api-2": {
      "url": "https://elucora.com/mcp"
    }
  }
}

Sequesign

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

Frequently asked questions

Elucora Evidence API is categorized under Cryptography and uses a remote HTTP/SSE transport. Sequesign belongs to Cryptography and uses a local stdio subprocess. Pick Elucora Evidence API for cryptography 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.

Elucora Evidence API has no declared pricing — check the project's own site. 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 elucora-evidence-api-2 and sequesign as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Elucora Evidence API has a quality signal of 48/100 (Fair) with 2 views, 0 installs and 0 GitHub stars. Sequesign has 53/100 (Good) with 0 views, 0 installs and 0 GitHub stars.