AI Agent Playground

AI-first · React + Node (Express) · 18 @molecule/* packages

Build, test, and deploy AI agents with tools, multi-provider support, and execution history — with built-in Stripe-backed subscription tiers

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Opens instantly. Runs on sample data, so changes reset on reload.

agent_executions — id, user_id, agent_id, status, input, output, final_output, tool_calls, …
agent_tools — id, agent_id, tool_id, user_id, config_json, position, created_at
agents — id, user_id, name, description, provider, model, temperature, max_tokens, …
api_credentials — id, user_id, provider, encrypted_key, label, last_used_at, created_at, updated_at
dataset_rows — id, dataset_id, user_id, input_json, expected_output, position, created_at
datasets — id, user_id, name, description, row_count, format, created_at, updated_at
devices — id, createdAt, updatedAt, userId, name, pushPlatform, pushSubscription, hasPushSubscription
execution_steps — id, execution_id, user_id, step_index, kind, tool_id, request_json, response_json, …
knowledge_bases — id, user_id, name, description, embedding_model, document_count, ingested_at, created_at, …
knowledge_documents — id, knowledge_base_id, user_id, source_type, source_url, title, chunk_count, status, …
notifications — id, user_id, kind, title, body, link, read_at, created_at
payments — id, createdAt, updatedAt, userId, transactionId, productId, platformKey, data, …
tools — id, user_id, name, description, type, schema_json, handler_config_json, created_at, …
user_preferences — id, user_id, data, created_at, updated_at

free / pro / team — gated by: maxAgents, maxExecutions, advancedFeatures, canExport, retentionDays

The @molecule/* packages are Apache-2.0. The app you build from this template is yours to export and self-host. Licensing