"OpenAI" matching MCP connectors:

Discover, prove & serve small open specialist models: embeddings, rerank, extract — OpenAI-compat.

OpenAIRE MCP — EU research outputs (publications, datasets, software, projects)

Pay-per-call x402 gateway: agent tools, OpenAI-compatible LLM, market data, RPC, security audits.

OpenAQ MCP — wraps OpenAQ v2 API (free, no auth required)

Focused MCP server for OpenAI image/audio generation (v2.0.0). Wraps endpoints via HAPI CLI.