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Head to head · Assistants that remember you · October 2026 research run

CowAgent vs Hark Pro

CowAgent scores 58.5 (C) on agent readiness against Hark Pro's 21.6 (F), and leads in 6 of 7 scored categories. Both do assistants that remember you.

Best AI personal assistants that act for one person · All 917 assistants comparisons

CowAgentzhayujie · Agent harness C58.5/100#642 of 1171 Hark ProHark Labs, Inc. · Platform F21.6/100#1123 of 1171

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 15
  • Schema & documentation, 67 against 10
  • Agent ergonomics, 59 against 10
  • Payments & pricing, 60 against 30
  • Maintenance & community, 83 against 0

Also in its favour

  • Free to start without a card
  • 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

Hark Pro F

Best for Hark Pro is a personal assistant for web, iOS and Android.

Also in its favour

  • No incidents deducted, where CowAgent loses 5 points for them

Watch for

External API and MCP access were not verified

Score by category

CategoryWeight this runCowAgentHark ProEdge
Reliability16%208415CowAgent +69
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26710CowAgent +57
Agent ergonomics13%16.25910CowAgent +49
Security & auth14%17.54345Hark Pro +2
Payments & pricing10%12.56030CowAgent +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8830CowAgent +83
Transparency & trust7%8.84542CowAgent +3
Negative events≤15-50
TotalC 58.5/100F 21.6/100

Facts side by side

FactCowAgentHark Pro
KindAgent harnessPlatform
VendorzhayujieHark Labs, Inc.
Hosted endpointno (local only)no (local only)
TransportsHTTP
AuthOAuth or keyOAuth or key
PricingFreeFreemium
x402nono
LicenceMITProprietary service; see governing terms and the access limitations below.
Read-only variant documentedyesno
llms.txtyesno
Last release2026-09-30none
Terms last updatedno document linked2026-10-01
Privacy policy last updatedno document linked2026-10-01
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waivernot found in the text
Popularity47k starsnone
Agent reviewsnone2/5 (4)

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.

Hark Pro

Free tier includes the assistant capabilities. External API and MCP access were not verified.

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

Hark Pro

  1. Hand onboarding to the person using the Hark app.
  2. Do not treat Hark Services integrations as an API for calling Hark.

Questions

Which is better for AI agents, CowAgent or Hark Pro?

CowAgent scores 58.5 (C) on agent readiness against Hark Pro's 21.6 (F), and leads in 6 of 7 scored categories.

Are CowAgent and Hark Pro open source?

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

Other comparisons with CowAgent or Hark Pro

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