Synthflow

Custom actions call the customer's APIs during a call, with several chained per turn, real time booking writes to calendars, and integrations cover Salesforce, HubSpot, Zendesk, Freshworks, Stripe, Cal.com, GoHighLevel, Make, Zapier and SIP connections to Five9, Genesys Cloud, RingCentral, Talkdesk and others.

SourceSynthflow, docs.synthflow.ai (Custom Actions, Real-Time Booking, Integrations overview)read 2026-09-28

In a visual flow designer, flows combine conversation, message, branch, jump, custom action, transfer and booking nodes, a multi agent system passes calls between agents, workflows automate steps around calls, and version control governs publishing.

SourceSynthflow, docs.synthflow.ai (Flow Designer, Branch Node, Multi-Agent System, Version Control, Workflows)read 2026-09-28

Knowledge base sources are PDFs, documents, URLs, website crawls on a sync schedule and imports from connected services, retrieved by semantic search during the conversation (RAG), and knowledge bases and their sources are created, attached and deleted through the API; new knowledge is added as a new source.

SourceSynthflow, docs.synthflow.ai (Knowledge Base, Knowledge Bases API)read 2026-09-28

Calls transfer to people by phone number, SIP or dynamic rules, business hours bound when the agent works, and PII redaction limits what is kept. Synthflow does not describe a step that holds an agent action for a person's sign off before it commits.

SourceSynthflow, docs.synthflow.ai (Call Transfers, Business Hours, Security and Compliance)read 2026-09-28

Super Admin, Admin and Member roles separate access, with admins controlling SSO, allowed email domains and two factor authentication, plus PII redaction and a 30 day retention option. Synthflow says it is "certified across SOC 2, HIPAA, PCI DSS, and GDPR" and lists ISO 27001, and the Trust Vault at security.synthflow.ai holds the report types and dates.

SourceSynthflow, docs.synthflow.ai (Team members, Security and Compliance) and synthflow.airead 2026-09-28

Each call's details show the transcript and metadata, an Actions tab with the steps triggered and their results, and every outbound API request an agent made with request and response and when in the call it fired, alongside status and end call reasons; retention follows the plan and logs export.

SourceSynthflow, docs.synthflow.ai (Logs, Export Call Data)read 2026-09-28

Memory Groups keep summaries of an agent's past interactions with each contact (questions, solutions, preferences) and inject them into each new voice, SMS or WhatsApp conversation keyed on the phone number, with a retention window setting; memory stores are created, attached to agents and have contacts attached or detached through the API. Synthflow does not state the retention window values.

SourceSynthflow, docs.synthflow.ai (Memory of Past Calls, Memory Stores API)read 2026-09-28

A workspace is created on the US cluster (storage and compute in the United States), the EU cluster (all data and processing in the European Union) or the Global cluster (data stored in the EU, live processing in the US or EU), chosen at creation and fixed afterward. Synthflow does not describe an on premises deployment.

SourceSynthflow, docs.synthflow.ai (Clusters and Regions)read 2026-09-28

The marketplace offers ready made agents, among them a real estate buying appointment scheduler, an insurance customer support agent, a hospitality event demand generator, an insurance claims receptionist, a recruitment appointment reminder and a buyer lead qualifier, free to deploy, and lets builders publish and sell their own templates.

SourceSynthflow, synthflow.ai/marketplaceread 2026-09-28

Agents answer inbound calls on Synthflow numbers, forwarded lines or SIP trunks, inbound call webhooks fire at the start of calls, campaigns dial contact lists and can be created, paused and resumed through the API, and agents also run over chat and WhatsApp Business calling.

SourceSynthflow, docs.synthflow.ai (Campaigns, Inbound Call Webhooks, Telephony overview, WhatsApp Business Calling)read 2026-09-28

The AI Model selector offers OpenAI models (GPT-4o, GPT-4.1, GPT-5, 5.1, 5.2 and 5.4 families) beside Synthflow's own LLMs so each agent matches its latency, cost and quality needs, and voices can come from ElevenLabs. OpenAI is the only third party LLM provider listed, and Synthflow does not describe a bring your own keys option.

SourceSynthflow, docs.synthflow.ai (General Configuration, ElevenLabs)read 2026-09-28

Synthflow's Platform API creates, updates and deletes assistants, places calls and batch campaigns, manages chats, simulation cases and suites, actions, knowledge bases, memory stores, contacts, phone numbers and subaccounts, with webhook logs and analytics export, and a Synthflow MCP server sits beside it.

SourceSynthflow, docs.synthflow.ai (Platform API introduction, API reference, Synthflow MCP server)read 2026-09-28

Simulation suites generate test cases from the agent's configuration, behavior and actions, judge each against success criteria (all or any), and are rerun after every update as a regression suite before real customers are reached; custom evaluations score live calls, and simulations run through the API.

SourceSynthflow, docs.synthflow.ai (Simulations, Custom Evaluations, Simulations API)read 2026-09-28

IVR handling navigates a phone menu by keypad, the only interface the agent operates, and the website and app integration embeds calls in the customer's own product. Synthflow does not describe browser, desktop or computer control.

SourceSynthflow, docs.synthflow.ai (IVR Handling, Integrate into Website and Apps)read 2026-09-28