Sideshow for AI agents

Sideshow is a collaborative visual workspace where agents publish, update, and discuss posts containing interactive content. Teams use it to share and comment on rich work in progress. 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.

Connect Sideshow See the 10 actions ↓

Developer toolsAPI keyMCP + REST

AUDIT LOG · SIDESHOWPOLICY: acme-support

09:41:07 · claude · u_8f2read

sideshow.list_kits

List Kits✓ allowed · 212ms

09:41:08 · claude · u_8f2read

sideshow.get_post

Get Post✓ allowed · 164ms

09:41:09 · claude · u_8f2write

sideshow.create_comment

Create Comment✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

sideshow.delete_post

Delete Post✕ blocked · policy: deny

EVERY SIDESHOW CALL, ON THE RECORD

01 · USE CASES

What agents do in Sideshow.

Publish a post to the workspace

Publish a new post with interactive content for the team to view and react to.

Review existing posts first

List current posts before publishing, to avoid duplicating something already shared.

Confirm before deleting a comment

Check a comment's thread and get confirmation before deleting it from a post.

02 · ACTIONS

10 Sideshow actions, graded by risk.

Every Sideshow action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

Look things up. Allowed by default.

sideshow.get_post
Get Post
sideshow.list_kits
List Kits
sideshow.list_posts
List Posts
sideshow.list_comments
List Comments
sideshow.list_sessions
List Sessions

write

Create and change things. Allow, or ask the user first.

sideshow.update_post
Update Post
sideshow.create_comment
Create Comment
sideshow.publish_post
Publish Post

destructive

Delete, cancel or archive. Ask first, or deny outright.

sideshow.delete_post
Delete Post
sideshow.delete_comment
Delete Comment

03 · HOW IT WORKS

Sideshow in three steps.

01Your users connect SideshowThey add their Sideshow api key on Arc0 Connect, under your brand. It goes straight into the vault.
02You set the rulesReads run, writes like “create Comment” can wait for the user, and “delete Post” can be denied outright.
03Any agent can actYour agent calls Sideshow through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.

POLICY.TS

await arc0.policies.set('sideshow', {
  read: 'allow',
  write: 'ask',        // create_comment
  destructive: 'deny',  // delete_post
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2

04 · AUTH AND DATA

How Sideshow connects.

Users add their Sideshow 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 Sideshow 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

05 · WORKS WITH

Use Sideshow from any agent.

Claude

ChatGPT

Cursor

Codex

VS Code

OpenAI Agents SDK

Claude Agent SDK

Vercel AI SDK

Mastra

LangGraph

06 · RELATED

More developer tools apps.

Addressfinder17 actions

Addresszen2 actions

Alchemy36 actions

ALL DEVELOPER TOOLS APPS →

07 · FAQ

Sideshow and Arc0, answered.

Q01

Can I use Sideshow with Claude, ChatGPT or Cursor?

Yes. Connect Sideshow 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 Sideshow actions you allow.

Q02

How do users connect Sideshow?

Users add their Sideshow 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.

Q03

Which Sideshow actions can my agent take?

10 in total: 5 read, 3 write and 2 destructive, such as “create Comment”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Sideshow?

Yes. Actions like “delete Post” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Sideshow too?

Yes. The same Sideshow connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Sideshow into your agent.

Your users connect Sideshow once, under your brand. Your agent gets 10 actions behind your policies, with every call on the record.

Connect Sideshow Browse all apps →

Free to build · MCP + REST · Audit log on every plan