# Foundry Local vs Lemonade

> Lemonade scores 63.8 (B) on agent readiness against Foundry Local's 60.5 (C), and leads in 3 of 7 scored categories. Foundry Local leads on maintenance & community and transparency & trust. Both do local inference. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade
- Markdown: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade.md (~2,750 tokens)
- Slim: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Lemonade scores 63.8 (B) on agent readiness against Foundry Local's 60.5 (C), and leads in 3 of 7 scored categories. Foundry Local leads on maintenance & community and transparency & trust. Both do local inference.

- Foundry Local: grade C, 60.5/100, rank #461 of 842. Markdown https://www.anchorterminal.com/tools/foundry-local.md · JSON https://www.anchorterminal.com/api/v1/tools/foundry-local.json
- Lemonade: grade B, 63.8/100, rank #336 of 842. Markdown https://www.anchorterminal.com/tools/lemonade.md · JSON https://www.anchorterminal.com/api/v1/tools/lemonade.json

## Which one, for what

### Foundry Local (C)

Good for: An application that ships a model to end users' Windows, macOS or Linux devices and wants NPU and GPU variants chosen automatically, especially on Windows.

Ahead on:
- Maintenance & community, 88 against 76
- Transparency & trust, 72 against 64

Also in its favour:
- No key needed to call it

Watch for: The local server takes no credential, and its routes include model load and unload and `POST /shutdown`

### Lemonade (B)

Good for: An owner with AMD hardware (Ryzen AI NPUs, Radeon or Strix Halo) who wants one local server for chat, speech and images that existing OpenAI, Anthropic or Ollama clients can call, and for MCP clients that want local models as tools.

Ahead on:
- Reliability, 75 against 68
- Schema & documentation, 70 against 53
- Agent ergonomics, 70 against 61

Watch for: No authentication by default. With no key set, every route answers, including `/internal/*` shutdown and configuration


## Score by category

| Category | Weight | Foundry Local | Lemonade | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 68 | 75 | Lemonade +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 53 | 70 | Lemonade +17 |
| Agent ergonomics | 13% (16.2 this run) | 61 | 70 | Lemonade +9 |
| Security & auth | 14% (17.5 this run) | 39 | 36 | Foundry Local +3 |
| Payments & pricing | 10% (12.5 this run) | 60 | 60 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 88 | 76 | Foundry Local +12 |
| Transparency & trust | 7% (8.8 this run) | 72 | 64 | Foundry Local +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **60.5 · C** | **63.8 · B** | |

## Facts side by side

| Fact | Foundry Local | Lemonade |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Microsoft | AMD and the Lemonade community |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP | HTTP |
| Auth | None | API key |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | MIT for the SDKs and the v2 native runtime. The CLI is closed source under Microsoft Software Licence Terms. Execution providers carry NVIDIA, Intel and Qualcomm licences, and each model carries its own | Apache 2.0. Each backend (llama.cpp, whisper.cpp, stable-diffusion.cpp, FastFlowLM and others) is downloaded separately under its own licence |
| Tools exposed | none | 6 |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-09-29 | 2026-10-07 |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | no document linked | no document linked |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | 2.6k stars, 105k npm/wk, 47k PyPI/wk | 5.8k stars |

## Verdicts

**Foundry Local.** The SDK and its native runtime are MIT, at 2.1.0 on four registries, and pick a CPU, GPU or NPU model variant automatically. The optional local server has no credential, its current routes aren't in the published REST reference, and telemetry is on by default with an opt-out.

**Lemonade.** Apache 2.0, with weekly releases, installers for Windows, macOS and five Linux routes, and a six-tool MCP endpoint whose descriptions steer a caller away from accidental multi-gigabyte downloads. Authentication is off by default, the repository has no security policy, and the docs tell WebSocket clients to pass the key in the URL.

## Before you call either

### Foundry Local

1. Read the server URL from `manager.urls[0]` or `foundry server status`. The port is dynamic unless the owner sets `web.urls` or `foundry server start --port`
2. Send the model ID that `GET /v1/models` returns, not the alias. The alias resolves to a hardware-specific variant
3. Check `supportsToolCalling` before sending tools. Support differs by variant, and issue #1183 reports Qwen tool calling failing on QNN
4. Set your own request timeout. Inference has no built-in one, and cancellation takes effect only after the current generation step
5. Ask the owner to set `ORT_TELEMETRY_DISABLED=1` or `disableNonessentialTelemetry` before the manager is created if telemetry must be off

### Lemonade

1. Call `lemonade_list_models` (or `GET /v1/models`) before naming a model. A wrong name with `allow_download: true` can start a multi-gigabyte download
2. Send `Authorization: Bearer <key>` when the operator has set `LEMONADE_API_KEY`. `/internal/*` needs the admin key when one is set
3. Use `POST /v1/chat/completions` for streamed tokens, embeddings and speech. The MCP endpoint ignores `stream` and has no embeddings or text-to-speech tool
4. Pass `output_dir` to `lemonade_generate_image` and `lemonade_omni` to get file paths in place of inline base64. Writes stay inside the MCP media sandbox
5. Read `GET /v1/docs` on the running server for the reference that matches its version. Weekly releases change behaviour

## Questions

### Which is better for AI agents, Foundry Local or Lemonade?

Lemonade scores 63.8 (B) on agent readiness against Foundry Local's 60.5 (C), and leads in 3 of 7 scored categories. Foundry Local leads on maintenance & community and transparency & trust.

### Can an agent call Foundry Local and Lemonade without installing anything?

No hosted endpoint is listed for Foundry Local. No hosted endpoint is listed for Lemonade.

### Are Foundry Local and Lemonade open source?

Yes. Foundry Local is open source (MIT for the SDKs and the v2 native runtime. The CLI is closed source under Microsoft Software Licence Terms. Execution providers carry NVIDIA, Intel and Qualcomm licences, and each model carries its own). Lemonade is open source (Apache 2.0. Each backend (llama.cpp, whisper.cpp, stable-diffusion.cpp, FastFlowLM and others) is downloaded separately under its own licence).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade.json, and with the fewest tokens: https://www.anchorterminal.com/compare/foundry-local-vs-lemonade.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "foundry-local", "b": "lemonade"}`. From a terminal: `anchor compare foundry-local lemonade`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/foundry-local.json and https://www.anchorterminal.com/api/v1/tools/lemonade.json

## Other comparisons with Foundry Local or Lemonade

- [AnythingLLM vs Foundry Local](https://www.anchorterminal.com/compare/anythingllm-vs-foundry-local.md)
- [AnythingLLM vs Lemonade](https://www.anchorterminal.com/compare/anythingllm-vs-lemonade.md)
- [Docker Model Runner vs Foundry Local](https://www.anchorterminal.com/compare/docker-model-runner-vs-foundry-local.md)
- [Docker Model Runner vs Lemonade](https://www.anchorterminal.com/compare/docker-model-runner-vs-lemonade.md)
- [Foundry Local vs Core](https://www.anchorterminal.com/compare/foundry-local-vs-ghost-core.md)
- [Foundry Local vs GPT4All](https://www.anchorterminal.com/compare/foundry-local-vs-gpt4all.md)
- [Foundry Local vs Jan](https://www.anchorterminal.com/compare/foundry-local-vs-jan.md)
- [Foundry Local vs Khoj](https://www.anchorterminal.com/compare/foundry-local-vs-khoj.md)
- [Foundry Local vs KoboldCpp](https://www.anchorterminal.com/compare/foundry-local-vs-koboldcpp.md)
- [Foundry Local vs llama.cpp](https://www.anchorterminal.com/compare/foundry-local-vs-llama-cpp.md)
- [Foundry Local vs LM Studio](https://www.anchorterminal.com/compare/foundry-local-vs-lm-studio.md)
- [Foundry Local vs LocalAI](https://www.anchorterminal.com/compare/foundry-local-vs-localai.md)
- [Foundry Local vs MLX LM](https://www.anchorterminal.com/compare/foundry-local-vs-mlx-lm.md)
- [Foundry Local vs Ollama](https://www.anchorterminal.com/compare/foundry-local-vs-ollama.md)
- [Foundry Local vs Open WebUI](https://www.anchorterminal.com/compare/foundry-local-vs-open-webui.md)
- [Foundry Local vs screenpipe](https://www.anchorterminal.com/compare/foundry-local-vs-screenpipe.md)
- [Foundry Local vs TextGen](https://www.anchorterminal.com/compare/foundry-local-vs-text-generation-webui.md)
- [Core vs Lemonade](https://www.anchorterminal.com/compare/ghost-core-vs-lemonade.md)
- [GPT4All vs Lemonade](https://www.anchorterminal.com/compare/gpt4all-vs-lemonade.md)
- [Jan vs Lemonade](https://www.anchorterminal.com/compare/jan-vs-lemonade.md)
- [Khoj vs Lemonade](https://www.anchorterminal.com/compare/khoj-vs-lemonade.md)
- [KoboldCpp vs Lemonade](https://www.anchorterminal.com/compare/koboldcpp-vs-lemonade.md)
- [Lemonade vs llama.cpp](https://www.anchorterminal.com/compare/lemonade-vs-llama-cpp.md)
- [Lemonade vs LM Studio](https://www.anchorterminal.com/compare/lemonade-vs-lm-studio.md)
- [Lemonade vs LocalAI](https://www.anchorterminal.com/compare/lemonade-vs-localai.md)
- [Lemonade vs MLX LM](https://www.anchorterminal.com/compare/lemonade-vs-mlx-lm.md)
- [Lemonade vs Ollama](https://www.anchorterminal.com/compare/lemonade-vs-ollama.md)
- [Lemonade vs Open WebUI](https://www.anchorterminal.com/compare/lemonade-vs-open-webui.md)
- [Lemonade vs screenpipe](https://www.anchorterminal.com/compare/lemonade-vs-screenpipe.md)
- [Lemonade vs TextGen](https://www.anchorterminal.com/compare/lemonade-vs-text-generation-webui.md)
- [Foundry Local vs Underdog](https://www.anchorterminal.com/compare/foundry-local-vs-underdog.md)
- [Lemonade vs Underdog](https://www.anchorterminal.com/compare/lemonade-vs-underdog.md)