CopilotKit / aimock

What it does

• Record & Replay. Proxy real APIs, save as fixtures, replay deterministically forever
• Timing-aware recording and replay. Recorded fixtures capture per-frame arrival timestamps; replay uses recorded timings for approximate timing reproduction based on recorded TTFT and inter-frame cadence (replay chunk count may differ from
• Recorded token usage and cost. Recording captures the final usage frame of a streaming completion, so replayed fixtures serve real prompt_tokens / completion_tokens instead of a length estimate; OpenRouter's provider-reported usage.cost an
• Multi-turn Conversations. Record and replay multi-turn traces with tool rounds; match distinct turns via turnIndex, hasToolResult, toolCallId, toolResultContains (gate on the tool-result payload), sequenceIndex, systemMessage (gate on host
• Ollama embedding recordings. Current /api/embed captures retain input shape, dimensions and model in their match and stay separate from legacy/OpenAI embedding operations.