# Synthflow — AI Connector Synthflow publishes 62 MCP tools to Claude and is listed in the ChatGPT apps directory. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/communication/synthflow/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Communication](https://node8.ai/ai-connectors/communication/) # Synthflow Build and operate AI phone agents Listed in ChatGPT and Claude · 62 published tools · Verified partner [ChatGPT listing](https://chatgpt.com/plugins/synthflow?open_in_app) [Claude connector docs](https://docs.synthflow.ai/claude) [synthflow.ai](https://synthflow.ai/) Overview ## What Synthflow does Synthflow builds voice agents that place and answer phone calls. The connector opens a linked Synthflow workspace to ChatGPT, covering agent creation and configuration, the actions an agent can take on a call (sending SMS, transferring, booking, calling a custom API, extracting data), and the surrounding records: knowledge bases, phone numbers, contacts. Call reviews, analytics, and simulated conversations against an agent are also available from chat. The connector reads workspace data and can write changes to it. Actions that destroy data, deletions among them, are marked as such. Two skills ship with it, one for reviewing prompts and one for reviewing calls. ### Who it is for Operators of Synthflow voice agents who prefer configuring and auditing them by conversation. ### What stands out Testing is covered as well as setup, including simulated callers run against a live agent configuration. Availability ## Where Synthflow is listed Synthflow.ai ships this on both marketplaces: Synthflow is listed in the Claude connectors directory and in the ChatGPT apps directory, under the same publisher domain. Only 392 of the 3,150 products in this directory are listed in both marketplaces. One MCP server can serve both surfaces; what differs is each platform's listing and review process. ChatGPT listing ## In the ChatGPT apps directory Developer Synthflow Filed under Productivity Listed since July 2026 Authentication Authenticates when installed Website [synthflow.ai](https://synthflow.ai/) Policies published Privacy policy · Terms of service Official listing [Open in ChatGPT](https://chatgpt.com/plugins/synthflow?open_in_app) Snapshot August 2026 ### Named skills Synthflow declares 2 named skills, which puts it in the 6.7% of ChatGPT-listed apps that do. - **prompt-review** - **call-review** ### Example prompts from the listing - How did my voice agents perform over the last 7 days? Summarize call volume, completion rates, and any trends. - Create a new inbound voice agent called "Reception" that greets callers and takes messages. - Simulate a frustrated caller rescheduling an appointment against my agent and tell me what to improve. Claude listing ## In the Claude connectors directory Synthflow publishes 62 tools to Claude, a deeper surface than 93.7% of the 1,253 Claude-listed connectors, the top decile. The median Claude-listed connector filed under Communication publishes 11, so this one runs 51 tools above its bucket's median and ranks 5th of 29 by tool count. It falls in the 51+ tools band, which holds 9.6% of the Claude directory. Synthflow's Claude listing does not publish an endpoint URL. 48 of the 1,253 Claude listings are in the same position: real listings with documentation but no URL in the directory record, so the endpoint has to come from the publisher's own docs. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher Synthflow.ai Verification Verified partner (37.8% of the Claude directory) Filed under Communication Endpoint Not published in the listing Documentation [Publisher setup docs](https://docs.synthflow.ai/claude) Published tools 62 · 51+ tools band Depth rank in Communication 5 of 29 Snapshot August 2026 Synthflow carries partner verification in the Claude directory, which 474 of 1,253 listings do (37.8%). That is a review step past self-publishing, not an Anthropic-built server. In the publisher's words ## How Synthflow.ai describes it > Synthflow lets you build and operate AI voice agents that make and take phone calls. This connector brings your Synthflow workspace into your assistant, so you can create and configure voice agents; manage their actions (SMS, call transfers, bookings, custom API calls, and data extraction); organize knowledge bases, phone numbers, and contacts; review calls and analytics; and run agent simulations all from your favourite AI tool. It reads your workspace data and can make changes on your behalf; destructive actions like deletions are clearly marked and confirmed. Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Communication connectors ### [Conduit](https://node8.ai/ai-connectors/communication/conduit/) Hospitality guest messaging, reservations and tickets from Conduit Claude ### [Textmagic](https://node8.ai/ai-connectors/communication/textmagic/) Send business SMS and manage contact lists Claude · ChatGPT ### [AgentMail](https://node8.ai/ai-connectors/communication/agentmail/) Email inboxes that AI agents can operate Claude · ChatGPT ### [Carbon Voice](https://node8.ai/ai-connectors/communication/carbon-voice/) Search and dictate against a Carbon Voice memo archive Claude ### [Fellow.ai](https://node8.ai/ai-connectors/communication/fellow-ai/) Search meeting transcripts, summaries and action items in Fellow Claude ### [Kepler](https://node8.ai/ai-connectors/communication/kepler/) Search saved links, notes, and clips from chat ChatGPT [All 44 Communication connectors](https://node8.ai/ai-connectors/communication/) This is an independent catalogue entry compiled by Node8 from Synthflow's public marketplace listings as they stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Synthflow.ai, and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session