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Head to head · Assistant proactive · October 2026 research run

CowAgent vs Lindy

CowAgent scores 58.5 (C) on agent readiness against Lindy's 32.3 (F), and leads in 5 of 7 scored categories. Lindy leads on security & auth and transparency & trust. Both do assistant proactive.

Best AI personal assistants that act for one person · All 190 assistants comparisons

CowAgentzhayujie · Agent harness C58.5/100#591 of 986 LindyCrivello Corp (doing business as Lindy) · Platform F32.3/100#968 of 986

Which one, for what

CowAgent C

Best for One technical owner who wants an assistant on WeChat, Feishu, DingTalk, Telegram, Slack or Discord with memory in local files and a choice of Chinese and Western model providers.

Ahead on

  • Reliability, 84 against 24
  • Schema & documentation, 67 against 32
  • Agent ergonomics, 59 against 43
  • Payments & pricing, 60 against 35
  • Maintenance & community, 83 against 9

Also in its favour

  • Open source

Watch for

Source and Docker installs default to full-access, and no mode asks the owner before a shell command, a file send or an MCP call

Lindy F

Best 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 43
  • Transparency & trust, 52 against 45

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

CategoryWeight this runCowAgentLindyEdge
Reliability16%208424CowAgent +60
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26732CowAgent +35
Agent ergonomics13%16.25943CowAgent +16
Security & auth14%17.54349Lindy +6
Payments & pricing10%12.56035CowAgent +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8839CowAgent +74
Transparency & trust7%8.84552Lindy +7
Negative events≤15-5-3
TotalC 58.5/100F 32.3/100

Facts side by side

FactCowAgentLindy
KindAgent harnessPlatform
VendorzhayujieCrivello Corp (doing business as Lindy)
Hosted endpointno (local only)no (local only)
TransportsHTTP
AuthOAuth or keyOAuth
PricingFreePaid
x402nono
LicenceMITProprietary service under Lindy's Terms of Service. No source is published
Read-only variant documentedyesno
llms.txtyesyes
Last release2026-09-302025-10-21
Terms last updatedno document linked2026-09-24
Privacy policy last updatedno document linked2026-09-28
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity47k starsnone

Verdicts

CowAgent

MIT software with seven releases in 90 days, memory kept as plain files in the owner's workspace and three per-session permission modes. Source and Docker installs default to full-access, no action asks for approval, and an open report of 31 July 2026 says group members could reach the owner's files through the bot.

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

CowAgent

  1. Set agent_permission_mode to workspace-write or read-only before connecting any channel. Source and Docker installs default to full-access
  2. Keep the bot out of group chats that include other people. Any member who mentions it reaches the same tools as the owner
  3. Set web_password before changing web_host to 0.0.0.0. The password is empty by default
  4. Set external_api_token to enable POST /v1/chat/completions, and send conversation_id to keep one session. The model field does not select a model
  5. Run it in a container for a hard boundary. The docs and the source both say the permission modes are not isolation

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, CowAgent or Lindy?

CowAgent scores 58.5 (C) on agent readiness against Lindy's 32.3 (F), and leads in 5 of 7 scored categories. Lindy leads on security & auth and transparency & trust.

Are CowAgent and Lindy open source?

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

Other comparisons with CowAgent or Lindy

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