OpenRouter ChatGPT Plugin

Analytics, Cost Optimization & MCP Tools for ChatGPT and Codex.

An open-source OpenRouter plugin that combines OpenRouter's official MCP server with a private analytics bridge for account spend, usage analysis, model comparison, cost anomaly detection, and cost optimization.

Current version: 0.3.0 Alpha

What it does

Account

• Remaining OpenRouter credit

• Today / yesterday / 7-day / 30-day spend

• Usage trends

Models

• Live model search through OpenRouter's official MCP

• Latest models

• Pricing and context windows

• Provider endpoints

• Side-by-side model comparison

• Benchmark/ranking evidence through OpenRouter's official MCP

Analytics

• Spend by model

• Requests by model

• Spend by provider

• Spend by API key

• Token/cache/reasoning-token analysis

• Cost anomaly detection

• Cost optimization evidence

Developer

• Generation inspection through OpenRouter's official MCP

• OpenRouter docs search

• API-key metadata and limits

• Live Analytics schema discovery

Related MCP server: Langfuse MCP Server

Architecture

ChatGPT / Codex
      |
      +----------------------+
      |                      |
OpenRouter official MCP   RouterLens MCP
      |                      |
Models / Providers        Credits / Analytics
Benchmarks / Docs         Cost Doctor / Key metadata
Generations / Tests       Model comparison
      |                      |
      +---------- OpenRouter-+

The official MCP handles capabilities OpenRouter already exposes well. RouterLens adds the private account-analysis layer.

Why two MCP servers?

Duplicating OpenRouter's official model and generation tools would create unnecessary maintenance. RouterLens focuses on the missing workflow layer:

• account analytics

• cost attribution

• cost anomalies

• cost optimization

• API-key usage visibility

• normalized model/provider comparisons

RouterLens tools

Self-hosting

Requirements:

• Node.js 20+

• Vercel or another Next.js-compatible host

• OpenRouter Management API Key

Environment variables:

OPENROUTER_MANAGEMENT_KEY=
MCP_AUTH_TOKEN=

Install and build:

npm install
npm run check

Run locally:

npm run dev

Endpoints:

• MCP: /api/mcp

• Health: /api/health

Security

• Management Keys are read from server environment variables.

• Secrets are never returned by MCP tools.

• API-key listing only exposes metadata and hashes returned by OpenRouter.

• V0.3 contains no key create/update/delete tools.

• The self-hosted MCP endpoint is protected by MCP_AUTH_TOKEN.

• Account data is queried from OpenRouter on demand and is not persisted by RouterLens.

See SECURITY.md and docs/security.md.

Plugin package

The repository contains the portable ChatGPT/Codex plugin files:

• plugin.json

• mcp.json

• .mcp.json

• .codex-plugin/plugin.json

• skills/openrouter/SKILL.md

The plugin connects to:

1. OpenRouter official MCP: https://mcp.openrouter.ai/mcp

2. RouterLens analytics MCP: your self-hosted endpoint

Roadmap

0.3 Alpha

• Read-only analytics

• Cost Doctor

• Cost anomalies

• API-key metadata

• Model comparison

Next

• Hosted multi-user OAuth flow

• Encrypted per-user OpenRouter credentials

• Secure key write actions

• Presets and routing builder

• Guardrails and workspace governance

• Optional dashboard and recurring cost reports

License

Apache-2.0.

This is an independent open-source project and is not affiliated with or endorsed by OpenRouter.