"OpenAI Gym" matching MCP servers:

Integrate Claude with Any OpenAI SDK Compatible Chat Completion API - OpenAI, Perplexity, Groq, xAI, PyroPrompts and more.

Exposes Gemini CLI's built-in tools and external MCP proxies through a unified MCP endpoint while providing an OpenAI-compatible API for Gemini models. It features configurable security modes to safely manage file system operations, web searches, and shell command execution.

Enables ChatGPT to schedule future proactive messages and receive queued events into conversations through MCP Apps, without calling the OpenAI API.

Provides image recognition capabilities using Anthropic Claude Vision and OpenAI GPT-4 Vision APIs, supporting multiple image formats and offering optional text extraction via Tesseract OCR.

A generic MCP server that dynamically exposes any OpenAPI-documented REST API to LLMs by auto-discovering endpoints. It provides tools for exploring API capabilities and making authenticated requests directly through natural language interfaces.

Converts any OpenAPI/REST API into MCP tools with dynamic server switching, variable substitution, and runtime configuration. Enables seamless interaction with multiple API environments through natural language without pre-configuration.

173 tools to automate Google Ad Manager — campaigns, creatives, inventory, reporting via natural language

A local MCP bridge that connects Claude Code and OpenAI Codex via a durable SQLite mailbox, with support for orchestrating and resuming Codex sessions.

Enables booking flow operations through a DSP (Demand-Side Platform) API with OAuth authentication. Provides a proof-of-concept integration for managing DSP booking workflows through natural language interactions.

Turn any OpenAPI spec into MCP tools for Claude — instantly. Point mcp-openapi at any OpenAPI 3.x spec and Claude can call every endpoint through natural language. No custom integration code. No manual tool definitions. One line of config.

Turn any REST API into a hosted MCP server. 18 free public servers (GitHub, Stripe, Slack, OpenAI, Notion, and more) — no setup required, bring your own API key.

MCP server for Google Tag Manager that enables interactive setup, diagnostics, remediation, and dataLayer type generation.

Discovers, inspects, and executes requests against OpenAPI or Swagger APIs directly from documentation URLs or specification files. It enables users to trace parameter usage across an API and perform authenticated HTTP requests through a structured toolset.

Enables Codex to read and modify an active Creo Parametric session on Windows through a Node.js MCP service and Pro/TOOLKIT bridge, providing 60 tools for model inspection, parameters, dimensions, features, assemblies, sheet metal, STEP export, and version cleanup.

Enables comprehensive management of Google Tag Manager accounts, containers, workspaces, tags, triggers, and variables through OAuth2 authentication, allowing users to create, update, and publish GTM configurations via natural language.

Multi-mode MCP server supporting both Claude Desktop (STDIO) and OpenAI (HTTP/SSE) integrations with file operations including read, write, delete, and search capabilities.

Send requests to OpenAI, MistralAI, Anthropic, xAI, or Google AI using MCP protocol via tool or predefined prompts. Vendor API key required

A toolkit that enables AI assistants to directly call Feishu/Lark API interfaces for automation scenarios like document processing, conversation management, and calendar scheduling.

Converts any OpenAPI v3 spec into an MCP server with typed tools, resources, and prompts, enabling AI agents to call any REST API via natural language.

Enables Claude Desktop and other MCP clients to interact with any OAuth2-authenticated OpenAPI-based API through automatic tool generation from OpenAPI specifications, with built-in token management and authentication handling.