Happy Valley

agentmash vs beacon.sh

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

agentmash

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

beacon.sh

Open-source memory layer that carries lessons across coding agents

PricingFreemium · $20Open source
Starting price$20/moNot published
Free planYesYes
Free trial30 days—
Built forDevelopers, Small businesses, EnterpriseDevelopers, Enterprise, Small businesses
Platformsmacos, windows, linuxmacos, windows, linux, web
Country—US
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 beacon.sh if

Developers and engineering teams using several AI coding agents who want shared, reviewed memory and a full record of agent activity.

  • MIT-licensed core that runs locally without lock-in to one harness
  • One timeline for every agent and machine, including token spend
  • Turns repeated walkthroughs into skills every agent can reuse

Look elsewhere if: Teams that only need a shared knowledge store for agents and people, or want to train their own models from traces (Context Engine, Overmind).

agentmash vs beacon.sh 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

beacon.sh

  • Open source$0MIT-licensed local endpoint, JSONL traces, local dashboard
  • Beacon Cloud$020+ agents, 50 findings, session search over MCP, daily digest
  • Cloud Pro$20/moBilled annually (save 25%); unlimited findings, memories over MCP
  • Cloud Team$30/seat/moBilled annually plus $10/mo base, up to 20 seats, shared traces
  • EnterpriseCustomApproval gates, SSO, RBAC, audit logs, your own bucket and region

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

beacon.sh · Key features

  • Session capture across Claude Code, Cursor, Codex, OpenCode and 20+ other harnesses
  • OpenTelemetry-based event model stored as local JSONL by default
  • Reviewed memories and skills served to agents over MCP and Agent Skills
  • Cloud findings with one-click skills, fix prompts and an evidence trail
  • Full session replay with prompts, commands, edits, approvals and tokens
  • Terminal trace browser and read-only local dashboard

Cons

  • Pro and Team prices are shown only with annual billing
  • Team price is listed as $30 per seat in one place and $40 in the comparison table
  • Free cloud tier caps findings at 50

agentmash vs beacon.sh: FAQ

Do agentmash and beacon.sh have a free plan?

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

Not sure yet?