MCP server

Plith Rigor Official

ai.plith/rigor

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Structured multi-step workflows that produce production-quality deliverables. Plan any task free.

Working at last checkVerified publisher: plith.aiAbout 4,481 tokens per request once connected4 tools

https://plith.ai/api/mcp/rigor

At a glance

Type: MCP server
Publisher: plith.ai (verified by the MCP Registry)
Status: Working at last check
Tools: 4
Token cost: About 4,481 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http rigor https://plith.ai/api/mcp/rigor

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.rigor]
url = "https://plith.ai/api/mcp/rigor"

Gemini CLI

{"mcpServers":{"rigor":{"httpUrl":"https://plith.ai/api/mcp/rigor"}}}

Cursor

{"mcpServers":{"rigor":{"url":"https://plith.ai/api/mcp/rigor"}}}

VS Code

{"servers":{"rigor":{"type":"http","url":"https://plith.ai/api/mcp/rigor"}}}

Antigravity

agy mcp add rigor https://plith.ai/api/mcp/rigor

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"rigor","server_url":"https://plith.ai/api/mcp/rigor","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"rigor","server_url":"https://plith.ai/api/mcp/rigor"}

rigor_execute ~1905 tokens
Execute a structured workflow end-to-end. Call rigor_plan first (free) to preview the step sequence and cost estimate before committing credits. Classifies the task, selects the optimal tool sequence, and executes each step with the right LLM model. Returns a complete deliverable — solution designs,
rigor_plan ~1874 tokens
Before executing a complex task, get a structured workflow plan with per-step cost estimates. Classifies your task, selects the optimal framework sequence, and returns the full plan without executing anything. The response's allowed_modes tells you whether this plan is eligible for direct execution.
rigor_status ~129 tokens
Check the status of a running or completed Rigor workflow. Returns progress, step results, and the full deliverable when complete. Use after rigor_execute with polling delivery to retrieve results.
rigor_workflows ~573 tokens
List and search Rigor workflows for your organization, with filtering and pagination. Returns status, progress, capacity usage, and available actions per workflow. Use to monitor workflow state, understand concurrent limit usage, identify stuck or completed workflows, and — via q — find prior work o

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