# Leon vs Lindy

> Leon scores 41 (E) to Lindy's 32.3 (F) for assistant proactive. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/leon-vs-lindy
- Markdown: https://www.anchorterminal.com/compare/leon-vs-lindy.md (~2,500 tokens)
- Slim: https://www.anchorterminal.com/compare/leon-vs-lindy.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/leon-vs-lindy.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: 2026-10-12

Leon scores 41 (E) on agent readiness against Lindy's 32.3 (F), and leads in 6 of 7 scored categories. Lindy leads on security & auth. Both do assistant proactive.

- Leon: grade E, 41/100, rank #934 of 986. Markdown https://www.anchorterminal.com/tools/leon.md · JSON https://www.anchorterminal.com/api/v1/tools/leon.json
- Lindy: grade F, 32.3/100, rank #968 of 986. Markdown https://www.anchorterminal.com/tools/lindy.md · JSON https://www.anchorterminal.com/api/v1/tools/lindy.json
- Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md
- All 190 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md

## Which one, for what

### Leon (E)

Good for: A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source.

Ahead on:
- Reliability, 32 against 24
- Agent ergonomics, 57 against 43
- Payments & pricing, 60 against 35
- Maintenance & community, 15 against 9
- Transparency & trust, 60 against 52

Also in its favour:
- No key needed to call it
- Open source
- No incidents deducted, where Lindy loses 3 points for them

Watch for: No tagged release of the core since 1.0.0-beta.8 on 1 May 2023. The 2.0 Developer Preview is installed by cloning the develop branch

### Lindy (F)

Good for: Lindy suits a person or small team that lives in Slack and Google or Microsoft mail and wants briefs, drafts, scheduling and meeting notes done on a schedule.

Ahead on:
- Security & auth, 49 against 34

Watch for: The integrations page says approval settings apply in shared Slack threads only. Web chat, Slack direct messages, iMessage and SMS are not covered, and reads are never covered.


## Score by category

| Category | Weight | Leon | Lindy | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 32 | 24 | Leon +8 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 33 | 32 | Leon +1 |
| Agent ergonomics | 13% (16.2 this run) | 57 | 43 | Leon +14 |
| Security & auth | 14% (17.5 this run) | 34 | 49 | Lindy +15 |
| Payments & pricing | 10% (12.5 this run) | 60 | 35 | Leon +25 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 15 | 9 | Leon +6 |
| Transparency & trust | 7% (8.8 this run) | 60 | 52 | Leon +8 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **41 · E** | **32.3 · F** | |

## Facts side by side

| Fact | Leon | Lindy |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | Louis Grenard (Leon AI) | Crivello Corp (doing business as Lindy) |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | None | OAuth |
| Pricing | Free | Paid |
| x402 | no | no |
| Licence | MIT | Proprietary service under Lindy's Terms of Service. No source is published |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2023-05-01 | 2025-10-21 |
| Terms last updated | no document linked | 2026-09-24 |
| Privacy policy last updated | no document linked | 2026-09-28 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 18k stars | none |

## Verdicts

**Leon.** Connected-app credentials are encrypted per profile and the Gmail connection is read-only. The 2.0 Developer Preview has no tagged release, runs tools and a 30-minute proactive pulse with no approval step, listens on every network interface with client authentication off, and sends telemetry by default.

**Lindy.** Lindy keeps what it remembers in files the owner can read and edit, and publishes credit prices. Its approval setting applies in shared Slack threads only, so writes asked for by direct message, text or web chat run unasked, which its pricing page does not say. It has no status page, and its changelog stops in October 2025.

## Before you call either

### Leon

1. Clone the develop branch for 2.0. `npm install --global @leon-ai/cli` and docs.getleon.ai install and describe the legacy 1.0 betas
2. Set `client_interface.auth.enabled: true` and a `LEON_PROFILE_TOKEN` before the machine joins a shared network. The server binds 0.0.0.0
3. Set `telemetry_enabled: false` and `runtime.pulse_enabled: false` in the profile `config.yml` for an unattended or private run
4. Use `availability.tools.allowed` to limit tools. Shell, file writes, computer use and browser control are otherwise available to the agent with no approval prompt
5. Back up `LEON_CONNECTIONS_ENCRYPTION_KEY` from the profile `.env`. Without it the stored connections cannot be read

### Lindy

1. Treat a request sent by direct message, text or web chat as unguarded. Approval prompts appear in shared Slack threads only.
2. Run a routine as a dry run before turning it on. A dry run reads real data and sends, posts and writes nothing.
3. Turn off unused tools after adding an MCP server. Every supported tool arrives switched on, and a large server adds more than a hundred.
4. Expect a billed seat for anyone who mentions Lindy in Slack. A teammate who joins that way has seven free days first.
5. Connect only hosted MCP servers on public HTTPS with streamable HTTP, the one kind the docs describe.

## Questions

### Which is better for AI agents, Leon or Lindy?

Leon scores 41 (E) on agent readiness against Lindy's 32.3 (F), and leads in 6 of 7 scored categories. Lindy leads on security & auth.

### Are Leon and Lindy open source?

Leon is open source (MIT). No open-source release is listed for Lindy.


## For agents

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

## Other comparisons with Leon or Lindy

- [AstrBot vs Leon](https://www.anchorterminal.com/compare/astrbot-vs-leon.md)
- [AstrBot vs Lindy](https://www.anchorterminal.com/compare/astrbot-vs-lindy.md)
- [CowAgent vs Leon](https://www.anchorterminal.com/compare/cowagent-vs-leon.md)
- [CowAgent vs Lindy](https://www.anchorterminal.com/compare/cowagent-vs-lindy.md)
- [GAIA vs Leon](https://www.anchorterminal.com/compare/gaia-vs-leon.md)
- [GAIA vs Lindy](https://www.anchorterminal.com/compare/gaia-vs-lindy.md)
- [Gemini Spark vs Leon](https://www.anchorterminal.com/compare/gemini-spark-vs-leon.md)
- [Gemini Spark vs Lindy](https://www.anchorterminal.com/compare/gemini-spark-vs-lindy.md)
- [Grok Bot vs Leon](https://www.anchorterminal.com/compare/grok-bot-vs-leon.md)
- [Grok Bot vs Lindy](https://www.anchorterminal.com/compare/grok-bot-vs-lindy.md)
- [Haven vs Leon](https://www.anchorterminal.com/compare/haven-vs-leon.md)
- [Haven vs Lindy](https://www.anchorterminal.com/compare/haven-vs-lindy.md)
- [Hermes Agent vs Leon](https://www.anchorterminal.com/compare/hermes-agent-vs-leon.md)
- [Hermes Agent vs Lindy](https://www.anchorterminal.com/compare/hermes-agent-vs-lindy.md)
- [Instinct vs Leon](https://www.anchorterminal.com/compare/instinct-vs-leon.md)
- [Instinct vs Lindy](https://www.anchorterminal.com/compare/instinct-vs-lindy.md)
- [IronClaw vs Leon](https://www.anchorterminal.com/compare/ironclaw-vs-leon.md)
- [IronClaw vs Lindy](https://www.anchorterminal.com/compare/ironclaw-vs-lindy.md)
- [Leon vs nanobot](https://www.anchorterminal.com/compare/leon-vs-nanobot.md)
- [Leon vs NanoClaw](https://www.anchorterminal.com/compare/leon-vs-nanoclaw.md)
- [Leon vs Dots](https://www.anchorterminal.com/compare/leon-vs-openai-dots.md)
- [Leon vs OpenClaw](https://www.anchorterminal.com/compare/leon-vs-openclaw.md)
- [Leon vs PicoClaw](https://www.anchorterminal.com/compare/leon-vs-picoclaw.md)
- [Leon vs Poke](https://www.anchorterminal.com/compare/leon-vs-poke.md)
- [Leon vs QwenPaw](https://www.anchorterminal.com/compare/leon-vs-qwenpaw.md)
- [Leon vs ZeroClaw](https://www.anchorterminal.com/compare/leon-vs-zeroclaw.md)
- [Leon vs Zo Computer](https://www.anchorterminal.com/compare/leon-vs-zo-computer.md)
- [Lindy vs nanobot](https://www.anchorterminal.com/compare/lindy-vs-nanobot.md)
- [Lindy vs NanoClaw](https://www.anchorterminal.com/compare/lindy-vs-nanoclaw.md)
- [Lindy vs Dots](https://www.anchorterminal.com/compare/lindy-vs-openai-dots.md)
- [Lindy vs OpenClaw](https://www.anchorterminal.com/compare/lindy-vs-openclaw.md)
- [Lindy vs PicoClaw](https://www.anchorterminal.com/compare/lindy-vs-picoclaw.md)
- [Lindy vs Poke](https://www.anchorterminal.com/compare/lindy-vs-poke.md)
- [Lindy vs QwenPaw](https://www.anchorterminal.com/compare/lindy-vs-qwenpaw.md)
- [Lindy vs ZeroClaw](https://www.anchorterminal.com/compare/lindy-vs-zeroclaw.md)
- [Lindy vs Zo Computer](https://www.anchorterminal.com/compare/lindy-vs-zo-computer.md)