LangChain
Agent framework (v1.1) with create_agent abstraction, LangGraph stateful orchestration, middleware for retries and moderation, and model profiles.
open-source
Open ToolHosting
Serverless compute with Durable Functions for multi-step AI workflows, Amazon Bedrock agent integration, and generous free tier of 1M requests per month.
pay-per-use · $0-$100/mo
Agent framework (v1.1) with create_agent abstraction, LangGraph stateful orchestration, middleware for retries and moderation, and model profiles.
open-source
Open ToolGPT-5.2 and o-series reasoning models with the Responses API, AgentKit, and built-in tools for web search, code execution, and computer use.
usage-based
Open ToolIn-memory data store with Vector Sets (Redis 8 preview) for native vector search, semantic caching, JSON document storage, and session management for AI agents.
open-source-or-cloud
Open ToolPostgres backend with built-in pgvector for vector search, hybrid search (BM25 + vector), auth, real-time subscriptions, edge functions, and row-level security.
freemium
Open Tool