--- title: "Synthflow MCP server for AI agents - actionlake" description: "Give Claude 110 Synthflow actions through one MCP server: memory stores, actions, assistants. Your agent never holds the credential. 100,000 calls a month free." canonical: https://actionlake.com/connectors/synthflow updated: 2026-10-23 --- Connectors · Email & messaging # Synthflow MCP server for AI agents. actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Synthflow and the rest of your systems. It gives your agent 110 Synthflow actions (44 reads, 49 writes and 17 that wait for a confirmation) and holds the Synthflow credential itself, so the agent never does. It paces Synthflow's limits and records every call. [Connect Synthflow free](https://actionlake.com/console?start=sandbox) [See pricing](https://actionlake.com/pricing) 100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you. `claude mcp add --transport http actionlake https://connect.actionlake.com/mcp` the first call ``` do { action: "synthflow.contacts.list", intent: "check which Synthflow account is connected" } # List contacts · read · 1 upstream call ``` - 110 actions in one signed file - 44 read look, never change - 49 write create and update - 17 wait for a yes destructive, confirmed first Set up ## Connect Synthflow in three steps. 1. 01 ### Add actionlake to Claude. Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us. `https://connect.actionlake.com/mcp` 2. 02 ### Connect Synthflow. Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key. - `api_key` Synthflow API key: in the Synthflow app open Settings > API keys and create a key - `host` Where your Synthflow lives: your host ``` account { op: "connections.requirements", service: "synthflow" } # free: exactly what to paste, and what is found for you ``` 3. 03 ### Make the first call. Check before a write. Ask in plain words; Claude picks the action. Before anything changes, `check` validates the call and prices it, for free. ``` do { action: "synthflow.contacts.list" } # list contacts · read · 1 upstream call check { action: "synthflow.contacts.create", input: { … } } # free: inputs, permissions, cost and confirmations, nothing sent ``` Synthflow at a glance **Sign-in** Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. **You provide** `api_key` **Setup fields** `host` **Limits we pace to** 10 calls a second, per connection **API covered** Synthflow Platform API v2 (OpenAPI 3.1.0)`api.synthflow.ai/v2` **Built from** Synthflow's documentation, read 23 October 2026[docs.synthflow.ai](https://docs.synthflow.ai/openapi.json) [docs.synthflow.ai](https://docs.synthflow.ai/docs/api-reference) **Service file** Version 1.0.0, signed (Ed25519) **Cached reads** 43 of 44 reads, for up to 5 minutes; a write clears what it affects **Shared entities** 2, so ask can line Synthflow up with your other systems **Data** Processed and stored in Sydney, Australia. No US region yet Capabilities ## What an AI agent can do in Synthflow. 110 actions in 23 areas. Every one carries its effect, so a key can allow the reads and hold the rest. - **44** read look, never change - **49** write create and update - **17** destructive wait for a confirmation 1. ### Memory stores 10 3 read · 6 write · 1 destructive Create a memory store · List memory stores · Attach a memory store to an agent · Attach a contact to a memory store 2. ### Actions 8 2 read · 5 write · 1 destructive Create an action · Initialize a custom action · List actions · Attach an action 3. ### Assistants 7 2 read · 3 write · 2 destructive Create an agent · List agents · Attach phone numbers to an agent · Get an agent 4. ### Batch calls 7 3 read · 3 write · 1 destructive Create a batch call · List batch calls · List batch call recipients · Get a batch call 5. ### Knowledge bases 7 2 read · 4 write · 1 destructive List knowledge bases · Create a knowledge base · Attach a knowledge base · Detach a knowledge base 6. ### Simulation cases 7 3 read · 3 write · 1 destructive Create a simulation case · Generate test cases · List simulation cases · List simulation cases by agent 7. ### Chats 6 2 read · 3 write · 1 destructive List chats · Create a chat · Get a chat · Delete a chat 8. ### Simulation suites 6 2 read · 3 write · 1 destructive Create a simulation suite · Execute a simulation suite · List simulation suites · Get a simulation suite **15 more areas · 52 actions** - Calls **5** - Contacts **5** - Knowledge base sources **5** - Phone numbers **5** - Simulation scenarios **5** - Subaccounts **5** - Phonebook entries **4** - Workspace MCP config **4** - Phonebooks **3** - Simulations **3** - Simulation sessions **2** - Webhook logs **2** - Workspace MCP tools **2** - Analytics **1** - Voices **1** Top actions ## The Synthflow API, shaped for agents. The ids your agent types, what each does, and the one name it shares with other systems. 17 of Synthflow's 17 action names are shared with at least one other connector, so an agent learns them once. | Action | What it does | Effect | Same name in | | --- | --- | --- | --- | | `synthflow.contacts.list` List contacts | List contacts. | read | `crm.contact.list` 177 connectors | | `synthflow.calls.list` List calls | List calls. | read | `comm.call.list` 44 connectors | | `synthflow.contacts.create` Create a contact | Create a contact. | write | `crm.contact.create` 161 connectors | | `synthflow.calls.create` Make a call | Make a call. | write | `comm.call.create` 38 connectors | | `synthflow.contacts.delete` Delete a contact | Delete a contact. | destructive | `crm.contact.delete` 147 connectors | | `synthflow.phone_numbers.list` List phone numbers | List phone numbers. | read | `comm.phone_number.list` 23 connectors | | `synthflow.chats.list` List chats | List chats. | read | `comm.chat.list` 20 connectors | | `synthflow.chats.create` Create a chat | Create a chat. | write | `comm.chat.create` 15 connectors | | `synthflow.phone_numbers.get` Get a phone number | Get a phone number. | read | `comm.phone_number.get` 22 connectors | | `synthflow.knowledge_bases.list` List knowledge bases | List knowledge bases. | read | `knowledge.knowledge_base.list` 4 connectors | | `synthflow.voices.list` Get voices | Get voices. | read | this connector | | `synthflow.actions.create` Create an action | Create an action. | write | this connector | Try it ## Prompts to paste into Claude. Each one names the Synthflow actions it will call, so you know what it reads and what it changes before you send it. 1. Read read Find the Synthflow contacts with no email address, so we can clean them up. calls `synthflow.contacts.list` 2. Write write Create a contact in Synthflow. Show me exactly what you will send before you save it. calls `synthflow.contacts.create` 3. Across systems read Which contacts are in both Synthflow and HaloPSA, and how many are in only one of them? calls `synthflow.contacts.list` `halopsa.users.list` Across your systems ## Synthflow, joined to the rest of your business. One `ask` fetches from Synthflow and another system, joins the rows on the same customer on our side, and hands your agent the answer, not every row. - Which contacts are in both Synthflow and HaloPSA, and how many are in only one of them? `synthflow.contacts.list` + `halopsa.users.list`, on `crm.contact` · [HaloPSA](https://actionlake.com/connectors/halopsa) - Which contacts are in both Synthflow and NetSuite, and how many are in only one of them? `synthflow.contacts.list` + `netsuite.views.contacts`, on `crm.contact` · [NetSuite](https://actionlake.com/connectors/netsuite) Also mapped by other connectors `crm.contact` **192** `comm.call` **33** ask ``` ask { intent: "which contacts are in both Synthflow and HaloPSA, and how many are in only one of them", steps: [ { action: "synthflow.contacts.list", as: "people", input: {}, limit: 100, max_pages: 5 }, { action: "halopsa.users.list", as: "people2", input: {}, limit: 100, max_pages: 5 }, { join: { left: "people", right: "people2", on: "crm.contact", group_by: "people.email", select: ["people.email", "count(people2.id) as in_halopsa"] } } ] } ``` Example. Run it through check first: it validates the steps and prices them, and it is free. Governance for Synthflow ## Destructive actions wait for a yes. 17 Synthflow actions are destructive. These are all of them: - Delete a contact `synthflow.contacts.delete` - Delete a chat `synthflow.chats.delete` - Delete a phone number `synthflow.phone_numbers.delete` - Delete an action `synthflow.actions.delete` - Delete an agent `synthflow.assistants.delete` - Delete a knowledge base `synthflow.knowledge_bases.delete` - Detach phone number from an agent `synthflow.assistants.detach_phone_number` - Cancel a batch call `synthflow.batch_calls.cancel` - Delete a phone book `synthflow.phonebooks.delete` - Delete a subaccount `synthflow.subaccounts.delete` - Delete a memory store `synthflow.memory_stores.delete` - Delete a simulation case `synthflow.simulation_cases.delete` - Delete a phone book entry `synthflow.phonebook_entries.delete` - Delete a simulation suite `synthflow.simulation_suites.delete` - Delete a simulation scenario `synthflow.simulation_scenarios.delete` - Delete MCP configuration `synthflow.workspace_mcp_config.delete` - Delete a knowledge base source `synthflow.knowledge_base_sources.delete` A destructive action runs only with `confirm: true`. Under the `human` policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after. do synthflow.contacts.delete confirm_policy: **human** Delete a contact? **intent:** the user asked me to delete a contact run suspended · waiting for a named person · key _synthflow-agent_ cannot confirm itself In the console, or from an emailed signed link. a key for this connector ``` account { op: "keys.create", name: "synthflow-agent", allowed_actions: ["synthflow.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "synthflow.contacts.delete", approver: "lead@example.com" }, { match: "synthflow.chats.delete", approver: "lead@example.com" }, { match: "synthflow.phone_numbers.delete", approver: "lead@example.com" } ] } ``` Illustrative. Scoped to Synthflow only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person. Cost ## What Synthflow costs on actionlake. Every Synthflow action is one upstream call, the only thing actionlake bills. Searching, `check`, `cost`, `account` and any call Synthflow refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000. - 1 upstream call per action all 110 Synthflow actions - 110 actions page each page of a long list is one call - 43 reads can be cached a cache hit costs nothing - 100,000 calls a month, free paid plans from US$49 a month for 250,000 [See pricing](https://actionlake.com/pricing) Action index ## Every Synthflow action. 110 actions by area: the id your agent calls, what it does, and its effect. **Memory stores 10** - `synthflow.memory_stores.attach_assistant` Attach a memory store to an agent write - `synthflow.memory_stores.attach_contact` Attach a contact to a memory store write - `synthflow.memory_stores.create` Create a memory store write - `synthflow.memory_stores.delete` Delete a memory store destructive - `synthflow.memory_stores.detach_assistant` Detach a memory store from an agent write - `synthflow.memory_stores.detach_contact` Detach a contact from a memory store write - `synthflow.memory_stores.get` Get a memory store read - `synthflow.memory_stores.get_contact_memory` Get data for a specific memory store and contact read - `synthflow.memory_stores.list` List memory stores read - `synthflow.memory_stores.update` Update a memory store write **Actions 8** - `synthflow.actions.attach` Attach an action write - `synthflow.actions.create` Create an action write - `synthflow.actions.delete` Delete an action destructive - `synthflow.actions.detach` Detach an action write - `synthflow.actions.get` Get an action read - `synthflow.actions.initialize` Initialize a custom action write - `synthflow.actions.list` List actions read - `synthflow.actions.update` Update an action write **Assistants 7** - `synthflow.assistants.attach_phone_numbers` Attach phone numbers to an agent write - `synthflow.assistants.create` Create an agent write - `synthflow.assistants.delete` Delete an agent destructive - `synthflow.assistants.detach_phone_number` Detach phone number from an agent destructive - `synthflow.assistants.get` Get an agent read - `synthflow.assistants.list` List agents read - `synthflow.assistants.update` Update an agent write **Batch calls 7** - `synthflow.batch_calls.cancel` Cancel a batch call destructive - `synthflow.batch_calls.create` Create a batch call write - `synthflow.batch_calls.get` Get a batch call read - `synthflow.batch_calls.list` List batch calls read - `synthflow.batch_calls.list_tasks` List batch call recipients read - `synthflow.batch_calls.pause` Pause a batch call write - `synthflow.batch_calls.resume` Resume a batch call write **Knowledge bases 7** - `synthflow.knowledge_bases.attach` Attach a knowledge base write - `synthflow.knowledge_bases.create` Create a knowledge base write - `synthflow.knowledge_bases.delete` Delete a knowledge base destructive - `synthflow.knowledge_bases.detach` Detach a knowledge base write - `synthflow.knowledge_bases.get` Get a knowledge base read - `synthflow.knowledge_bases.list` List knowledge bases read - `synthflow.knowledge_bases.update` Update a knowledge base write **Simulation cases 7** - `synthflow.simulation_cases.create` Create a simulation case write - `synthflow.simulation_cases.delete` Delete a simulation case destructive - `synthflow.simulation_cases.generate` Generate test cases write - `synthflow.simulation_cases.get` Get a simulation case read - `synthflow.simulation_cases.list` List simulation cases read - `synthflow.simulation_cases.list_by_agent` List simulation cases by agent read - `synthflow.simulation_cases.update` Update a simulation case write **Chats 6** - `synthflow.chats.create` Create a chat write - `synthflow.chats.create_outbound` Start an outbound chat conversation write - `synthflow.chats.delete` Delete a chat destructive - `synthflow.chats.get` Get a chat read - `synthflow.chats.list` List chats read - `synthflow.chats.send_message` Send a message in a chat write **Simulation suites 6** - `synthflow.simulation_suites.create` Create a simulation suite write - `synthflow.simulation_suites.delete` Delete a simulation suite destructive - `synthflow.simulation_suites.execute` Execute a simulation suite write - `synthflow.simulation_suites.get` Get a simulation suite read - `synthflow.simulation_suites.list` List simulation suites read - `synthflow.simulation_suites.update` Update a simulation suite write **Calls 5** - `synthflow.calls.create` Make a call write - `synthflow.calls.get` Get a call read - `synthflow.calls.get_ws_media_base_url` Get the WebSocket media base URL read - `synthflow.calls.list` List calls read - `synthflow.calls.start_ws_media_test` Start a WebSocket media call write **Contacts 5** - `synthflow.contacts.create` Create a contact write - `synthflow.contacts.delete` Delete a contact destructive - `synthflow.contacts.get` Get a contact read - `synthflow.contacts.list` List contacts read - `synthflow.contacts.update` Update a contact write **Knowledge base sources 5** - `synthflow.knowledge_base_sources.create` Add a knowledge base source write - `synthflow.knowledge_base_sources.delete` Delete a knowledge base source destructive - `synthflow.knowledge_base_sources.get` Get a knowledge base source read - `synthflow.knowledge_base_sources.list` List knowledge base sources read - `synthflow.knowledge_base_sources.update` Update a knowledge base source write **Phone numbers 5** - `synthflow.phone_numbers.create_custom` Import phone number write - `synthflow.phone_numbers.delete` Delete a phone number destructive - `synthflow.phone_numbers.get` Get a phone number read - `synthflow.phone_numbers.list` List phone numbers read - `synthflow.phone_numbers.update` Update a phone number write **Simulation scenarios 5** - `synthflow.simulation_scenarios.create` Create a simulation scenario write - `synthflow.simulation_scenarios.delete` Delete a simulation scenario destructive - `synthflow.simulation_scenarios.get` Get a simulation scenario read - `synthflow.simulation_scenarios.list` List simulation scenarios read - `synthflow.simulation_scenarios.update` Update a simulation scenario write **Subaccounts 5** - `synthflow.subaccounts.create` Create a subaccount write - `synthflow.subaccounts.delete` Delete a subaccount destructive - `synthflow.subaccounts.get` Get a subaccount read - `synthflow.subaccounts.list` List subaccounts read - `synthflow.subaccounts.update` Update a subaccount write **Phonebook entries 4** - `synthflow.phonebook_entries.create` Create a phone book entry write - `synthflow.phonebook_entries.delete` Delete a phone book entry destructive - `synthflow.phonebook_entries.list` List phone book entries read - `synthflow.phonebook_entries.update` Update a phone book entry write **Workspace MCP config 4** - `synthflow.workspace_mcp_config.create` Set MCP configuration write - `synthflow.workspace_mcp_config.delete` Delete MCP configuration destructive - `synthflow.workspace_mcp_config.get` Get MCP configuration read - `synthflow.workspace_mcp_config.update` Update MCP configuration write **Phonebooks 3** - `synthflow.phonebooks.create` Create a phone book write - `synthflow.phonebooks.delete` Delete a phone book destructive - `synthflow.phonebooks.list` List phone books read **Simulations 3** - `synthflow.simulations.get` Get a simulation read - `synthflow.simulations.list` List simulations read - `synthflow.simulations.start` Start a simulation write **Simulation sessions 2** - `synthflow.simulation_sessions.get` Get a simulation session read - `synthflow.simulation_sessions.list` List simulation sessions read **Webhook logs 2** - `synthflow.webhook_logs.get` Get Webhook Log Detail read - `synthflow.webhook_logs.list` List Webhook Logs read **Workspace MCP tools 2** - `synthflow.workspace_mcp_tools.discover` Discover MCP tools read - `synthflow.workspace_mcp_tools.invoke` Invoke an MCP tool write **Analytics 1** - `synthflow.analytics.export` Export analytics data read **Voices 1** - `synthflow.voices.list` Get voices read Questions ## The Synthflow MCP server, answered. **Is there a Synthflow MCP server for Claude?** Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 110 Synthflow actions across memory stores, actions, assistants and batch calls, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Synthflow. **What do I need to connect Synthflow?** Synthflow API key: in the Synthflow app open Settings > API keys and create a key. Plus your host. The free call account { op: "connections.requirements", service: "synthflow" } lists exactly what to paste. **Can an AI agent delete or change things in Synthflow?** Only if its key allows it, and only with an explicit confirmation. 17 Synthflow actions are destructive, including delete a contact, delete a chat and delete a phone number. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it. **Will an AI agent use up my Synthflow API limit?** actionlake paces every call to the limits in the Synthflow service file: 10 calls a second per connection. Repeated reads are answered from cache (43 Synthflow actions can be), which never reaches Synthflow. **What does a Synthflow action cost?** One upstream call, the only unit actionlake bills. A list that pages bills one call per page (110 Synthflow actions page). Cache hits, searches, dry runs and calls Synthflow refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000. **Which Synthflow API does it cover?** The Synthflow Platform API v2 (OpenAPI 3.1.0) at api.synthflow.ai/v2 by default, or the base URL set when you connect. It is built from Synthflow's documentation as read on 23 October 2026. 110 actions in 23 areas, each one in the signed service file (version 1.0.0). **Can I combine Synthflow with my other systems?** Yes. ask joins Synthflow to HaloPSA or NetSuite on the same customer and returns the answer rather than every row. Synthflow maps crm.contact, which 192 other connectors also map. **Does actionlake keep my Synthflow data, and where?** actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Synthflow credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models. **Which AI clients can use it?** Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names. ## More connectors like Synthflow Shares the most action names with - [Retell AI 16](https://actionlake.com/connectors/retell-ai) - [Quo (formerly OpenPhone) 9](https://actionlake.com/connectors/quo-formerly-openphone) - [Sinch 8](https://actionlake.com/connectors/sinch) - [Vonage Communications APIs 7](https://actionlake.com/connectors/vonage-communications-apis) - [JustCall 7](https://actionlake.com/connectors/justcall) - [GoFundMe Pro (Classy) 5](https://actionlake.com/connectors/gofundme-pro-classy) Joins with, on shared entities - [HubSpot CRM 2](https://actionlake.com/connectors/hubspot-crm) - [Microsoft Dynamics 365 2](https://actionlake.com/connectors/microsoft-dynamics-365) - [3CX 2](https://actionlake.com/connectors/3cx) - [Bland AI 2](https://actionlake.com/connectors/bland-ai) - [Close 2](https://actionlake.com/connectors/close) - [Pipedrive 2](https://actionlake.com/connectors/pipedrive) Browse - [All Email & messaging connectors](https://actionlake.com/connectors/category/email-and-messaging) - [All connectors](https://actionlake.com/connectors) - [How actionlake compares](https://actionlake.com/compare) actionlake is independent. It is not made or endorsed by Synthflow; the name is the vendor's own. Counts are from the Synthflow service file, version 1.0.0. ## Give your agent Synthflow today. [Connect Synthflow free](https://actionlake.com/console?start=sandbox) [See pricing](https://actionlake.com/pricing) Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free. --- Source: https://actionlake.com/connectors/synthflow More: https://actionlake.com/llms.txt