Host compatibility evidence
What Envoy has and has not verified on each host, with dates. Read it before you rely on a host.
Read this page to see which host checks Envoy has recorded. It does not promise that a host works. Pick a connection path on connect your assistant, then finish at first success. Prerequisites are on before you start.
Support revision: envoy@2026-10. Last updated: 3 November 2026.
Evidence matrix
"Not recorded" means Envoy has no record of that check. It does not mean the check failed.
| Host | Surface | Connection method | Skill distribution | Authentication verified | Host-specific catalog discovered | Account read verified | Skill selection verified | Purchase route verified | Date and evidence |
|---|---|---|---|---|---|---|---|---|---|
| claude.ai | Web, Desktop and Cowork connectors | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| Claude Code | Separate from claude.ai connectors | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| ChatGPT | Not recorded | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| ChatGPT Work | Hosted Work | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| Cursor | Not recorded | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| Grok | Not recorded | MCP | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| Instinct | Browser | Browser agent pages | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Agent pages live in production since 7 October 2026. This is availability, not a host check. |
| Meta Muse | Browser pages; custom connector | Browser agent pages; custom connector | Not recorded | Connector registration with a public client verified 7 October 2026. Sign-in not recorded. | Not recorded | Not recorded | Not recorded | Not recorded | Registration verified 7 October 2026. Agent pages live in production since 7 October 2026 (availability only). See Meta Muse. |
| Custom HTTP | HTTP | HTTP API | Not applicable | Not recorded | Not recorded | Not recorded | Not applicable | Not recorded | Not recorded |
How to read the matrix
- A successful account read is not a verified checkout. It proves the connection can read the account. It does not prove KYC readiness or that a live checkout will work.
- Tool visibility is not card-release approval. Seeing the available tools does not approve a purchase. You approve card-backed purchases in the Envoy app. If Envoy offers a gift-card payment link, you pay it yourself.
- Claude connector profiles have nine tools, omitting
report_checkout_result,report_checkout_stepand the deprecatedsubmit_answerandget_merchants, and no card or checkout-code delivery. ChatGPT profiles have eight and also omitlist_gift_card_merchants; they buy only from Elixir's marketplace. The default profile has thirteen tools. This runtime distinction is not host execution evidence. - A revision label is not evidence. The line
envoy@2026-10names the documentation set. It does not mean a host was checked. - Host screens, plans and admin settings change. When a menu differs from these guides, follow the host's own current help for adding a remote MCP server.
If your host is not verified
Run the account read on first success. Do not start a purchase until you have confirmed the merchant and amount with the account owner. To remove a connection, follow disconnect.