"OpenAI Gym" matching MCP connectors:

DDG Agent ServicesB

io.github.daedalusdevelopmentgroup

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

HubrisBOAuth

pw.hubris.api

Hubris is an OpenAI-compatible LLM gateway for the Russian market, billed in rubles. This MCP server gives agents access to the model catalog (400+ models with ruble pricing), account balance, and chat completions with full parity to POST /v1/chat/completions. Tools: models_list, models_search (filter by capability/price/context length), models_get_pricing, balance_get, chat_complete. Resources: hubris://catalog/models, hubris://docs/quickstart. Prompt: compare-models. Docs: https://hubris.pw/

OpenAI-compatible LLM gateway for Russia: 500+ models, ruble pricing, balance, chat.