Cloudsmith for AI agents

Cloudsmith manages and distributes software packages across teams, giving engineering a controlled, private registry instead of relying on public package feeds. 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 Cloudsmith See the 10 actions ↓

Developer toolsAPI keyMCP + RESTcloudsmith.com

AUDIT LOG · CLOUDSMITHPOLICY: acme-support

09:41:07 · claude · u_8f2read

cloudsmith.list_organizations

List Organizations✓ allowed · 212ms

09:41:08 · claude · u_8f2read

cloudsmith.get_quota

Get Quota✓ allowed · 164ms

EVERY CLOUDSMITH CALL, ON THE RECORD

01 · USE CASES

What agents do in Cloudsmith.

Search for a package

Search across repositories for a specific package version before pulling it into a build.

Check a repository's vulnerabilities

List known vulnerabilities in a repository before approving a package for wider use.

Check usage quota

Check current quota and rate limits before scheduling a large batch of package pulls.

02 · ACTIONS

10 Cloudsmith actions, graded by risk.

Every Cloudsmith 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.

cloudsmith.get_quota
Get Quota
cloudsmith.get_package
Get Package
cloudsmith.get_repository
Get Repository
cloudsmith.get_rate_limits
Get Rate Limits
cloudsmith.search_packages
Search Packages
cloudsmith.get_current_user
Get Current User
cloudsmith.search_audit_log
Search Audit Log
cloudsmith.list_organizations
List Organizations
cloudsmith.search_repositories
Search Repositories
cloudsmith.list_repository_vulnerabilities
List Repository Vulnerabilities

write

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

No write actions.

destructive

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

No destructive actions.

03 · HOW IT WORKS

Cloudsmith in three steps.

01Your users connect CloudsmithThey add their Cloudsmith 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 Cloudsmith 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('cloudsmith', {
  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

04 · AUTH AND DATA

How Cloudsmith connects.

Users add their Cloudsmith 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 Cloudsmith 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 Cloudsmith 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

Cloudsmith and Arc0, answered.

Q01

Can I use Cloudsmith with Claude, ChatGPT or Cursor?

Yes. Connect Cloudsmith 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 Cloudsmith actions you allow.

Q02

How do users connect Cloudsmith?

Users add their Cloudsmith 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 Cloudsmith actions can my agent take?

10 in total: 10 read, 0 write and 0 destructive. Your policies decide which of them each agent may call.

Q04

Can I make my agent read-only in Cloudsmith?

Yes. Allow read actions and deny writes in the Cloudsmith policy. Your agent can still look things up, and any write it attempts is blocked and logged.

Q05

Can my own backend call Cloudsmith too?

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

Get started

Plug Cloudsmith into your agent.

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

Connect Cloudsmith Browse all apps →

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