# Infinity Blip > Prompt engine over MCP. Credits are prepaid Qx on the member ledger. > > Site: https://www.infinityblip.com (alias https://www.qxbin.com) > Connector: https://mcp.infinityblip.com (alias https://mcp.qxbin.com) ## Links - [Site](https://www.infinityblip.com) - [Catalog](https://mcp.infinityblip.com/llms-full.txt) - [Machine](https://mcp.infinityblip.com/ai.json) - [Members](https://mcp.infinityblip.com/members) ## Connect `https://mcp.infinityblip.com/l/{slug}/mcp` OTP at https://mcp.infinityblip.com/members. Auth = the URL. No OAuth. ## Billing Prepaid ledger: generate_* spends Qx already on THIS connected member account. It does not open Stripe, does not charge a card, and does not buy a pack. Pack purchases happen only when the human pays on the Members Hub. Call get_usage_info (0 Qx) to read the live balance first. ## Free (0 Qx) get_usage_info · mesh_price · list_prompt_atoms · ai_guide · pipeline_proof ## Prepaid debit - generate_optimal_prompt — one planning brief — 1 Qx — confirm_qx=1 - generate_ensemble_prompt — several angles, one champion — max(2, ceil(cubits/5)) Qx - generate_mesh_prompt — larger option grid — 10+ceil(cubits/5) Qx (default 15) generate_* returns a planning brief (data). confirm_qx must equal the integer cost.