Candor vs Ena

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

Candor logoCandorBiology & Bioinformatics · Local subprocess (stdio)Per-function effect analysis for agents: blast radius, what reaches the network, gate verdicts.45FairAuth: not declaredEna logoEnaBiology & Bioinformatics · Local subprocess (stdio)European Nucleotide Archive (ENA) — EMBL-EBI's public record of raw sequencing runs, assemblies…41FairAuth: no auth required

Verdict: choose Candor for biology & bioinformatics work as a local process; choose Ena for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Candor logoChoose Candor when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
Explore Candor

Ena logoChoose Ena when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
Explore Ena

Feature & specification comparison

Rows where the two servers differ are marked.

SpecCandor logoCandorEna logoEna
CategoryBiology & BioinformaticsBiology & Bioinformatics
Quality signal45/100 · Fair41/100 · Fair
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars10
Directory activity 1 views 0 installs 0 upvotes 2 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Candor tools

No tool names declared yet. Check the project README from the listing page.

Ena tools

No tool names declared yet. Check the project README from the listing page.

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.

Candor

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "candor": {
      "command": "npx",
      "args": [
        "-y",
        "candor-ts"
      ]
    }
  }
}

Ena

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

Frequently asked questions

Candor is categorized under Biology & Bioinformatics and uses a local stdio subprocess. Ena belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick Candor for biology & bioinformatics work and Ena for biology & bioinformatics.

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.

Candor has no declared pricing — check the project's own site. Ena is listed as free. Auth: no auth required. 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 candor and ena as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Candor has a quality signal of 45/100 (Fair) with 1 views, 0 installs and 1 GitHub stars. Ena has 41/100 (Fair) with 2 views, 0 installs and 0 GitHub stars.