agentfield vs plano
Open-source control plane that runs AI agents as microservices: write plain Python/Go/TS functions, get REST endpoints with routing, queues, retries, memory and tracing — one laptop to 10k agents. — versus — AI-native Envoy-based proxy for agentic apps: agent orchestration via a 4B routing model, smart LLM routing, guardrail filter chains and zero-code OTEL traces. Rust, framework-agnostic.
Same 'production infrastructure layer for agents' job from opposite ends: agentfield is a control plane that wraps your functions in routing/queues/retries, Plano is a data-plane proxy your unmodified HTTP agents sit behind.
| agentfield | plano | |
|---|---|---|
| Stars | 2.4k | 6.9k |
| Forks | 382 | 469 |
| Language | Go | Rust |
| License | Apache-2.0 | Apache-2.0 |
| Last activity | yesterday | 3 days ago |
| Topics | agents, orchestration | gateway, orchestration |
| Curated connections | 5 | 4 |
agentfield — the curator's take
The 'agents as a backend' play: write plain functions (no DSL, no graph wiring), and the Go control plane turns each into a REST endpoint any service can call — with fan-out to thousands of parallel agents, queues, retries, versioned deploys, observability and identity/audit built in. Reach for it when agents must be production infrastructure callable by frontends, cron jobs and other services — not a chat window. NOT for notebook experiments or a single local agent (a control plane + SDK is real operational commitment), and it won't give you reasoning-pattern libraries — you still design the agent logic it hosts. Its prompt-to-backend flow (/agentfield in Claude Code/Cursor) is a nice on-ramp, but evaluate the runtime, not the demo.
plano — the curator's take
Reach for it when multi-agent code is drowning in hidden middleware — intent routing, provider quirks, guardrail hooks, tracing glue. Plano moves all of that out-of-process: agents are plain OpenAI-compatible HTTP servers in any language, orchestration is YAML plus a purpose-built 4B router model. NOT for a quick single-agent demo (it adds an infra hop and Envoy operational surface), and note the catch: the hosted Plano-Orchestrator LLM is free-tier only — production means running the routing models yourself or getting API keys. If you only need provider unification, LiteLLM is lighter.