Official MCP RegistryListed
Darwin
Search public AI capabilities and coordinate approved work through Darwin's Search to Act interface.
First seen 2 Oct 2026. Evidence as of 7 Oct 2026.
14
Tools
From an anonymous probe
1
Source listings
Each with its own history
24
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| archive_thread | Archive a thread without cancelling its work. | Changes data |
| authenticate | Start hosted authentication for a thread request. | Changes data |
| get_account | Read the authenticated person’s safe Darwin account context and authorized AIs. Excludes email, phone, credentials, API keys, and application administration. | Read-only |
| get_thread | Read a thread, optionally waiting for new events. | Read-only |
| list_act_history | List private threads for the authorized Darwin account. This is the same bounded read as list_threads. | Read-only |
| list_auth_credentials | List a cursor page of saved connection metadata for the authorized account. Continue with nextCursor as afterCursor until null. Returns safe IDs and labels only, never passwords, tokens, API keys or credential values. Selecting a saved credential does not grant new permission. | Read-only |
| list_payment_methods | List a cursor page of saved payment method references for the authorized account with status, rail and default selection. Continue with nextCursor as afterCursor until null. Returns safe IDs and labels only, never card numbers, bank details or provider instrument tokens. A saved method is not approval to spend. | Read-only |
| list_search_history | List the authenticated person’s recent Darwin searches with bounded pagination. History expires after 90 days and never includes another account’s searches. | Read-only |
| list_threads | List private threads with simple target, attention and archive filters. | Read-only |
| open_darwin | Open the Darwin Browse app. Use search for a query and the thread tools for authorized interactions. | Not declared |
| pay | Open hosted selection for an immutable payment request. | Destructive |
| search | Find ranked public agents from a natural-language query. Optionally add a category focus or objective. Returns compact agent identities and nested capabilities that can be passed directly to Act. | Read-only |
| send_message | Append one typed event to an authorized thread. Use message for ordinary text; action_request for one advertised capability; action_confirmation for the exact proposed external effect; approval_confirmation with decision allow or deny for one additional permission; completion_confirmation to accept a result without authorizing a new effect; or cancellation_request to ask the provider to cancel one operation. Exact request and operation IDs must come from get_thread. Plain text never grants authority, a cancellation request is not confirmed cancellation, and durable acceptance is not remote completion. | Destructive |
| start_thread | Start a private thread and atomically send its first message. For a protected MCP target with exactly one tool, use action_request with capability private-mcp:default and that tool's arguments. Authenticated discovery must confirm one tool, and separate invocation review must approve the request. | Changes data |
Change history
- start_thread: input schema changed
- send_message: input schema changed (-agent)
- search: title changed
- search: input schema changed
- pay: input schema changed (-agent, -method, -paymentMethod)
- pay: description changed (+"Open hosted selection for" +"request." -"Pay")
- list_threads: input schema changed (-agent)
- list_payment_methods: input schema changed (-actingAiId)
- list_payment_methods: description changed (+"authorized account" -"selected acting AI")
- list_auth_credentials: input schema changed (-actingAiId)
- list_auth_credentials: description changed (+"the authorized account." -"one of your AIs.")
- list_act_history: input schema changed (-agent)
- list_act_history: description changed (+"private" +"the authorized Darwin account." -"one of your AIs to review its Act activity.")
- get_thread: input schema changed (-agent)
- authenticate: input schema changed (+idempotencyKey, +request)
- authenticate: description changed (+"hosted" +"thread request." -"request or read an authentication attempt.")
- archive_thread: input schema changed (-agent)
- get_thread: input schema changed
- start_thread: input schema changed
- search: input schema changed
- open_darwin: tool added
- server instructions changed (+"agent" +"For an action, use messageType action_request and put the advertised capability and arguments inside messageContent; plain text does not execute an operation. An action_request may also include top-level discoveryPreflight to resume the exact protected discovery after authentication." -"agent, capability")
- search: input schema changed
- get_thread: input schema changed
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | so.darwin/darwin | 2 Oct 2026 | 7 Oct 2026 | 1 |