Loomio for AI agents
Loomio is a collaborative decision-making platform groups use to discuss proposals, gather input, and record votes together instead of deciding over email threads. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Loomio.
Check a group's open polls
List polls in a group to see which decisions are still awaiting votes, read-only.
Pull a poll's current results
Look up a specific poll to check how a vote is trending before a deadline.
Summarize a group's discussions
Read a group's details to summarize recent proposals for someone catching up.
4 Loomio actions, graded by risk.
Every Loomio action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
4Look things up. Allowed by default.
- loomio.list_pollsList Polls
- loomio.list_groupsList Groups
- loomio.show_pollSHOW_POLL
- loomio.show_groupShow Group
write
0Create and change things. Allow, or ask the user first.
- No write actions.
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Loomio in three steps.
- 01Your users connect LoomioThey add their Loomio api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “updates” can wait for the user to approve.
- 03Any agent can actYour agent calls Loomio through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('loomio', { read: 'allow', write: 'ask', destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Loomio connects.
Users add their Loomio api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Loomio connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Loomio from any agent.
ClaudeChatGPTCursor
Codex
VS CodeOpenAI Agents SDKClaude Agent SDK
Vercel AI SDK
Mastra
LangGraphMore project management apps.
Loomio and Arc0, answered.
Can I use Loomio with Claude, ChatGPT or Cursor?
Yes. Connect Loomio to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Loomio actions you allow.
How do users connect Loomio?
Users add their Loomio api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Loomio actions can my agent take?
4 in total: 4 read, 0 write and 0 destructive. Your policies decide which of them each agent may call.
Can I make my agent read-only in Loomio?
Yes. Allow read actions and deny writes in the Loomio policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Loomio too?
Yes. The same Loomio connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Loomio into your agent.
Your users connect Loomio once, under your brand. Your agent gets 4 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan