Loki Mode vs Spec Driven Development

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

Loki Mode logoLoki ModeCoding Agents · Local subprocess (stdio)Autonomous spec-to-product coding-agent CLI with an MCP server exposing 34 tools over stdio.53GoodAuth: not declaredSpec Driven Development logoSpec Driven DevelopmentCoding Agents · Local subprocess (stdio)MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.44FairAuth: not declared

Verdict: choose Loki Mode for coding agents work as a local process; choose Spec Driven Development for coding agents as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Loki Mode logoChoose Loki Mode when

  • You need dedicated capabilities in the Coding Agents domain.
  • You prefer a local stdio subprocess transport.
Explore Loki Mode

Spec Driven Development logoChoose Spec Driven Development when

  • You need dedicated capabilities in the Coding Agents domain.
  • You prefer a local stdio subprocess transport.
Explore Spec Driven Development

Feature & specification comparison

Rows where the two servers differ are marked.

SpecLoki Mode logoLoki ModeSpec Driven Development logoSpec Driven Development
CategoryCoding AgentsCoding Agents
Quality signal53/100 · Good44/100 · Fair
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingBYOK (pay the provider)Not declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars1,106439
Directory activity 3 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Loki Mode tools

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

Spec Driven Development 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.

Loki Mode

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

Spec Driven Development

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "spec-driven-development": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-spec-driven-development@latest"
      ]
    }
  }
}

Frequently asked questions

Loki Mode is categorized under Coding Agents and uses a local stdio subprocess. Spec Driven Development belongs to Coding Agents and uses a local stdio subprocess. Pick Loki Mode for coding agents work and Spec Driven Development for coding agents.

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.

Loki Mode is bring-your-own-key: usage is billed by the API provider you supply a key for. Spec Driven Development 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 loki-mode and spec-driven-development as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Loki Mode has a quality signal of 53/100 (Good) with 3 views, 0 installs and 1,106 GitHub stars. Spec Driven Development has 44/100 (Fair) with 1 views, 0 installs and 439 GitHub stars.