Chameleon for AI agents
Chameleon builds in-app product experiences like tours and tooltips, and tracks how users engage with them, without needing a release from engineering. 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 Chameleon.
Look up a customer's record
Look up a customer record to see what in-app experiences they've already seen.
Check an experience's analytics
Pull analytics for a specific in-app experience before deciding to keep or retire it.
Track a product event
Track a custom event for a user, such as completing an onboarding step.
14 Chameleon actions, graded by risk.
Every Chameleon action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
13Look things up. Allowed by default.
- chameleon.get_deliveryGet Delivery
- chameleon.list_changesList Changes
- chameleon.get_experienceGet Experience
- chameleon.list_deliveriesList Deliveries
- chameleon.list_experiencesList Experiences
- chameleon.get_account_identityGet Account Identity
- chameleon.list_targeting_metadataList Targeting Metadata
- chameleon.search_customer_recordsSearch Customer Records
- chameleon.list_experience_analyticsList Experience Analytics
- chameleon.list_domains_or_environmentsList Domains or Environments
- chameleon.track_eventTrack Event
- chameleon.count_customer_recordsCount Customer Records
- chameleon.lookup_customer_recordLookup Customer Record
write
1Create and change things. Allow, or ask the user first.
- chameleon.upsert_customer_recordUpsert Customer Record
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Chameleon in three steps.
- 01Your users connect ChameleonThey add their Chameleon api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “upsert Customer Record” can wait for the user to approve.
- 03Any agent can actYour agent calls Chameleon through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('chameleon', { read: 'allow', write: 'ask', // upsert_customer_record destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Chameleon connects.
Users add their Chameleon 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 Chameleon 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 Chameleon from any agent.
Chameleon and Arc0, answered.
Can I use Chameleon with Claude, ChatGPT or Cursor?
Yes. Connect Chameleon 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 Chameleon actions you allow.
How do users connect Chameleon?
Users add their Chameleon 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 Chameleon actions can my agent take?
14 in total: 13 read, 1 write and 0 destructive, such as “upsert Customer Record”. Your policies decide which of them each agent may call.
Can I make my agent read-only in Chameleon?
Yes. Allow read actions and deny writes in the Chameleon policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Chameleon too?
Yes. The same Chameleon connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Chameleon into your agent.
Your users connect Chameleon once, under your brand. Your agent gets 14 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan