Configure the API key (or other credential) for a registered ACPX agent_id (claude/codex/cursor/gemini/qwen/copilot/pi/droid/iflow/kilocode/kimi/kiro/opencode/tlamatini) end-to-end across data.keys, config.json (top-level + acpx.agents.<id>.env), regen_secrets.py, and verification via acp_doctor.
Configure the API key (or other credential) for a registered ACPX agent_id (claude/codex/cursor/gemini/qwen/copilot/pi/droid/iflow/kilocode/kimi/kiro/opencode/tlamatini) end-to-end across data.keys, config.json (top-level + acpx.agents.<id>.env), regen_secrets.py, and verification via acp_doctor.