"Home Assistant integration with Codex or ChatGPT" matching MCP servers:

Provides secure, read-only semantic access to Home Assistant entities, areas, floors, and domain summaries for MCP clients like ChatGPT and Codex.

MCP server that provides OpenRouter model pricing data, enabling price lookups, trending/cheapest lists, and model searches without an API key.

MCP server that allows AI agents to read, search, summarize, and answer questions about local PDF, DOCX, XLSX, and TXT files through five tools.

Enables MCP clients to send prompts anonymously to ChatGPT and receive the markdown answer plus the web sources it consulted as structured JSON. Requires only a HasData API key, with no OpenAI account, API key, or billing needed.

An experimental guarded MCP bridge for Codex/open-ultrawork workflows, enabling submission of bounded research jobs to ChatGPT Pro asynchronously with source verification and safety guards.

Builds a personal knowledge graph from selected ChatGPT conversations (stored in Neo4j) and exposes it to Claude Code as an on-demand MCP search tool.

MCP server that lets any LLM client query the Home Credit Default Risk SQLite database (307,511 loan applications) through 7 read-only tools, 4 resources, and 1 prompt over stdio, with natural language, SQL, and tool-calling interfaces.

Public read-only registry for Codex-compatible animated companion packs. Search approved pets, fetch install instructions, generate badges and embed cards, and discover the pet request flow via Streamable HTTP MCP.

A Python FastMCP server that re-exposes Kindora's public funder and grant tools for ChatGPT, enabling grant discovery from IRS 990 filings and Grants.gov.

MCP server that wraps Codex CLI as a subprocess, exposing code execution, web search, and structured output as Model Context Protocol tools.

Provides access to OpenAI's ChatGPT API with web search capabilities for Claude and other MCP clients. Supports various GPT models with configurable parameters like reasoning effort, temperature, and streaming mode.

A research assistant server that enables saving, organizing, and retrieving research content with semantic search using ChromaDB and OpenAI embeddings.

Local-first, read-only Codex session aggregator that indexes multiple CODEX_HOME directories into a SQLite database and provides MCP tools for cross-project, archival, and sub-agent history queries.

Provides access to FluentLab's funding database, enabling users to search for funding opportunities and retrieve document checklists required for specific funding programme applications.

Local Markdown-backed memory tools for Codex and other MCP-capable agents. Exposes durable agent knowledge via CLI and MCP server.

MCP server for Bar Assistant that enables searching cocktails, managing ingredients, shelves, shopping lists, and collections via natural language.

Provides AI assistants with natural language access to IMAS data structures and enables remote facility exploration through SSH.

Enables AI agents to search and read a local, provider-independent email archive, reconstruct contacts and interactions, and prepare draft responses without sending anything.

MCP server that enables Claude, ChatGPT, and other LLMs to interact with ERPNext sites through natural language, supporting document CRUD, search, reports, workflows, and custom tools, while respecting user permissions and logging all calls.

Enables ChatGPT web custom apps to search Feizhu travel data—flights, hotels, trains, POIs, and more—through the official FlyAI CLI via an MCP endpoint.