MIT agent runtime. Pay model API only. Live Flash peak $0.44/$1.32 per 1M, not the old $0.14/$0.28 row.

Preview MIT agent filesystem on Durable Objects. Not production. Pay Workers usage, not a $0 computer SKU.

Cloudflare agent browser on Workers. GitHub 404. Not an open-source Chromium clone.

LangChain's low-level agent orchestration runtime: durable graphs, streaming, human-in-the-loop, and persistence. About 39,835 GitHub stars.

OpenAI's official Python and TypeScript agent runtime: agents, handoffs, guardrails, sessions, and tracing.

Python serverless compute with a Sandbox API for untrusted agent code, scale-to-zero, and per-second CPU/GPU billing.

Python multi-agent framework with crews, flows, and an Enterprise Cloud from $99/seat. AMP is now that cloud, not a separate product name.

Firecracker microVM sandboxes for AI agents. Hobby is $0 plus usage; Pro is $150/month. Open-source SDK on GitHub.

LangChain Cloud for traces, evals, and deploys. Plus is $39/seat. Startup is $1,400/month. LangSmith Engine is $2,000/month.

SpaceXAI's always-on AI teammates that run on their own cloud computer, sign into your tools, and finish tasks end to end, in beta since August 2026.

Open-source LLM tracing and evals. Cloud Hobby is $0. Core is $29/seat. Pro is $199/seat. Plus usage after included units.

Daytona is now a closed-source sandbox cloud. GitHub is archived. Starter $20, Plus $200, Scale $500, plus compute after included credits.

GPU rental marketplace with interruptible and on-demand instances. Prices move by host. Confirm the live offer before you rent.

MemGPT's company and OSS agent memory runtime. GitHub letta-ai/letta is ~20.5k stars. Cloud is $20 and $200 per project plus usage.

Hosted browser infra for agents. Developer is $20/month. Startup is $99/month. Scale starts at $249/month after a custom form.

Open-source LLM gateway and traces. Cloud Free is $0. Pro is $79/month. Team is $799/month. Extra logs start at $0.28 per 100k.

Agent session replay and traces. Free $0. Pro is $40/month. Enterprise is custom. GitHub is about 4.4k stars, not 5k+ unspecified.

Open-source browser API for agents. Cloud Launch is $0 plus usage with a one-time $30 credit. Scale is $250/month plus usage.

Trigger.dev is an open-source TypeScript platform for durable AI agents and workflows, with no timeouts, checkpoint resume, retries, and queues.

A2A is an open agent-to-agent communication protocol under the Linux Foundation, built on Agent Cards, tasks, and messages and complementing MCP.

Open-source runtime that keeps your coding agents alive: real terminal sessions on a background server, so Claude Code, Codex, and opencode keep working when.

Computer use agent that navigates any website end-to-end on a dedicated virtual computer. Book flights, order food, shop, and message candidates on LinkedIn.

ByteDance's open-source SuperAgent harness for long-horizon tasks. Orchestrates sub-agents, memory, sandboxes, and skills on LangGraph, with a browser-equipp.

Agent-native AI SaaS template family: auth, payments, subscriptions, credit billing, i18n, storage, and AI generation pre-wired so coding agents can ship AI.