Happy Valley

agentmash vs Better Auth

agentmash and Better Auth are both developer tools tools. agentmash is aimed at developers and small businesses, while Better Auth is aimed at developers. Both have a free plan.

agentmash

Shared room that warns coding agents before they edit the same file

Better Auth

Framework-agnostic TypeScript authentication

PricingFreemium · $20Open source · $20
Starting price$20/mo$20/mo
Free planYesYes
Free trial30 days—
Built forDevelopers, Small businesses, EnterpriseDevelopers
Platformsmacos, windows, linuxweb
Country—US · 2024
Rating——

Choose agentmash if

Engineering teams where several developers run AI coding agents on the same repository at once.

  • Pricing counts developers only, with unlimited agents
  • Free for two developers, and Team's first month is free
  • Server does not see code unless a room enables diffs

Look elsewhere if: Solo developers or teams that just need a single coding agent (Cursor) without cross-machine coordination.

Choose Better Auth if

TypeScript developers who want complete ownership and flexibility without paying per user.

  • Free and MIT licensed; you own user data
  • Comprehensive plugin set rivals hosted providers
  • Excellent TypeScript DX

Look elsewhere if: Teams that want hosted UI and zero maintenance (Clerk) or heavy enterprise SSO today (Auth0).

agentmash vs Better Auth pricing

agentmash

  • Free$0Up to 2 developers, 1 private repo, 7 days of history
  • Team$20/moPer developer, unlimited private repos, 90 days; $16 billed yearly
  • EnterpriseFrom $15,000/yrSelf-hosting from a private Docker image, invoiced

Better Auth

  • Open source$0MIT library, self-hosted, no per-user fees
  • Starter$0Managed infra: 1 dashboard seat, 10k audit logs/mo
  • Pro$20/moUnlimited seats, 20k audit logs/mo, 1 SSO connection
  • EnterpriseCustomCustom limits, log drain, Slack support

agentmash · Key features

  • Pre-edit warnings naming the teammate, branch and task behind a change
  • Advisory path claims so agents split work before starting
  • Strict mode that blocks edits into a teammate's change until acknowledged
  • Prompts sent to a teammate's agent that run only after their approval
  • Team chat whose latest messages reach every agent before its next prompt
  • Lobby desktop app for Mac and Windows running agents side by side

Cons

  • Sign-in requires GitHub; GitLab and Bitbucket need extra setup
  • No Linux desktop app, only the CLI
  • Continue and Zed get MCP tools only, without live edits in the room

Better Auth · Key features

  • Email/password, OAuth, magic link, passkeys and OTP
  • Plugins: organizations, teams, 2FA, admin, multi-session, API keys
  • Database adapters for Drizzle, Prisma, Kysely and more
  • Framework integrations: Next.js, Nuxt, SvelteKit, Hono, Express
  • Typed client hooks for React, Vue and Svelte
  • Rate limiting, session management and CLI migrations

Cons

  • You host and secure it yourself
  • No prebuilt UI components (bring your own)
  • Younger project; APIs still evolving

agentmash vs Better Auth: FAQ

Do agentmash and Better Auth have a free plan?

Yes, both agentmash and Better Auth have a free plan; paid plans add more usage and features.

Which is better for small businesses, agentmash or Better Auth?

agentmash lists small businesses as a core audience, while Better Auth is aimed more at developers.

Not sure yet?

agentmash vs Better Auth (2026): Pricing and Features