Julep

Manages agent state across multiple conversation turns by persisting session data, conversation history, and agent context to a backend store. Uses session IDs to maintain continuity between API calls, enabling agents to recall previous interactions and maintain context without re-sending full conversation history. Implements automatic state serialization and retrieval patterns that abstract away session lifecycle management from the developer.

Executes multi-step agent workflows by decomposing tasks into discrete steps, managing control flow (sequential, conditional, looping), and coordinating state between steps. Uses a declarative workflow definition format that maps to an execution runtime, enabling agents to perform complex sequences of actions (tool calls, LLM invocations, data transformations) with built-in error handling and step retry logic.

Deploys agents as serverless functions that scale automatically based on demand. Agents are invoked via API calls that trigger execution in isolated containers or functions. The platform handles infrastructure management, auto-scaling, and resource allocation. Supports both on-demand and scheduled execution patterns.

Integrates external tools and APIs by accepting tool schemas (function signatures, parameters, descriptions), automatically generating function-calling prompts for LLMs, and dispatching tool invocations based on LLM outputs. Supports multiple tool types (HTTP APIs, webhooks, internal functions) and handles parameter validation, error responses, and result formatting before returning to the agent for further processing.

Allows developers to define agents with specific roles, system prompts, model selection, and default parameters that persist across sessions. Agents are created as reusable configurations that can be instantiated multiple times with different session contexts, enabling consistent behavior while maintaining per-session state. Supports model switching, temperature/parameter tuning, and system prompt customization without code changes.

Exposes agent execution through REST/HTTP APIs with standard request/response patterns, enabling agents to be called from any client (web, mobile, backend services) without SDK dependencies. Supports both synchronous (blocking) and asynchronous (webhook-based) invocation modes, with request queuing and response streaming for long-running operations. Handles authentication via API keys and provides structured response formats for easy integration.

Automatically maintains and retrieves conversation history for each session, managing message ordering, timestamps, and role attribution (user/agent/system). Implements context windowing strategies to keep conversation history within LLM token limits while preserving semantic relevance, and provides APIs to query, filter, and manipulate conversation history without affecting agent state.

Enables agents to engage in extended conversations where each turn maintains awareness of previous exchanges, user preferences, and conversation goals. Implements context preservation across turns by automatically passing relevant history to the LLM, managing token budgets, and updating session state after each turn. Supports interruption, clarification requests, and topic switching while maintaining coherent conversation flow.

Provides detailed execution logs and monitoring for agent operations, including step-by-step execution traces, tool invocations, LLM calls, and error events. Logs are structured as JSON with timestamps, execution context, and performance metrics, enabling debugging, auditing, and performance analysis. Supports log filtering, search, and export for compliance and troubleshooting purposes.

Isolates agent sessions and data by user/tenant, ensuring that one user's conversation history and state cannot be accessed by another user. Implements authentication and authorization checks at the API level, with support for multi-tenant deployments where multiple organizations use the same agent infrastructure. Session data is partitioned by user/tenant ID, and access controls are enforced on all data retrieval operations.

Provides tools to optimize agent execution for latency and cost, including token usage tracking, model selection guidance, and execution time metrics. Tracks token consumption per agent, per session, and per operation, enabling cost forecasting and budget management. Supports model switching recommendations based on task complexity and cost/performance tradeoffs.