Synthflow

Synthflow is an enterprise-ready no-code Voice AI platform for automating phone conversations at scale. The product combines a visual agent designer with in-house telephony, sub-100ms latency, and a 99.99% uptime guarantee, so businesses can build, deploy, and operate voice agents without third-party carriers. Synthflow exposes a REST Platform API for assistants, calls, phone numbers, knowledge bases, and custom actions, with bearer token authentication. The platform claims more than 200 integrations including HubSpot, Salesforce, Cal.com, Zapier, and CCaaS systems, plus custom webhook actions. Compliance covers SOC 2, HIPAA, PCI DSS, and GDPR with end-to-end encryption and audit logging.

Synthflow publishes 19 API contracts indexed on the APIs.io network, including Chat API, Contacts API, MCP API, and 16 more. Tagged areas include Voice, Voice Agents, No-Code, Telephony, and Phone.

The Synthflow catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Synthflow’s developer surface includes authentication, documentation, engineering blog, pricing, API reference, getting-started guide, support, and 36 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

62.3/100 strong ▬ flat Agent 55/100 agent ready Front door AI 6/6 dominant Heartbeat 70/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 published contract 1 MCP Servers 7 Agent Skills

Voice Voice Agents No-Code Telephony Phone Outbound Inbound CRM Webhook Custom Actions HIPAA SOC 2 MCP Agent Skills Conversational AI SIP Simulation Knowledge Base Voice AI

What this lets a business do 5

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Agent Infrastructure & Agentic Commerce

AE-100

ActionsAnalyticsAssistants

POST /actions POST /actions/attach POST /assistants

Application Communications

AE-150

Phone Numbers

GET /numbers POST /custom-numbers

AI Model Services

AE-110

Knowledge Base

POST /knowledge_base POST /knowledge_base/{knowledge_base_id}/attach POST /knowledge_base/{knowledge_base_id}/sources

Software Product Engineering Management

BC-4200

Simulation Cases

POST /simulation_cases GET /simulation_cases POST /simulation_cases/generate GET /simulation_cases/by_agent

SaaS Tenant Management

BC-4230

Subaccounts

POST /subaccounts DELETE /subaccounts/{subaccount_id}

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 62.3/100 · strong

Contract Quality 11.6 / 19

Developer Ergonomics 10.7 / 15

Access Clarity 8.3 / 15

Operational Transparency 6.7 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 4.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 55/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

3 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 61.6 — up to +9.6 composite points
Access Clarity scores 55.3 — up to +8.9 composite points
Contract Governance scores 31.8 — up to +8.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/synthflow/apis.yml: open an issue on github.com/api-evangelist/synthflow to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Customer Support, Helpdesk and Contact Center	builds-on	43.1	-	1
Agent Skills (SKILL.md packages)	builds-on	43.1	-	1
Salesforce AppExchange (CRM, outbound, business-process automation)	builds-on	43.1	-	1
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	builds-on	43.1	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 5

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Agent Skills

measured — observed by APIs.io (published)

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 19

Individual APIs this provider publishes, each with its own machine-readable definition.

Synthflow Platform API

The Synthflow Platform API provides REST endpoints to manage assistants, phone numbers, calls, knowledge bases, and custom actions for no-code voice AI agents. Authentication is...

Synthflow Chat API

The chat API from Synthflow — 4 operation(s) for chat.

Synthflow Contacts API

The contacts API from Synthflow — 2 operation(s) for contacts.

Synthflow MCP API

The mcp API from Synthflow — 3 operation(s) for mcp.

Synthflow Memory Stores API

The Memory Stores API from Synthflow — 1 operation(s) for memory stores.

Synthflow Actions API

The Actions API from Synthflow — 5 operation(s) for actions.

Synthflow Analytics API

The Analytics API from Synthflow — 1 operation(s) for analytics.

Synthflow Assistants API

The Assistants API from Synthflow — 5 operation(s) for assistants.

Synthflow Calls API

The Calls API from Synthflow — 4 operation(s) for calls.

Synthflow Knowledge Base API

The Knowledge Base API from Synthflow — 6 operation(s) for knowledge base.

Synthflow Phonebooks API

The Phonebooks API from Synthflow — 4 operation(s) for phonebooks.

Synthflow Simulation Cases API

The Simulation Cases API from Synthflow — 4 operation(s) for simulation cases.

Synthflow Simulation Scenarios API

The Simulation Scenarios API from Synthflow — 2 operation(s) for simulation scenarios.

Synthflow Simulation Suites API

The Simulation Suites API from Synthflow — 3 operation(s) for simulation suites.

Synthflow Simulations API

The Simulations API from Synthflow — 4 operation(s) for simulations.

Synthflow Subaccounts API

The Subaccounts API from Synthflow — 3 operation(s) for subaccounts.

Synthflow Voices API

The Voices API from Synthflow — 1 operation(s) for voices.

Synthflow Phone Numbers API

The Phone Numbers API from Synthflow — 3 operation(s) for phone numbers.

Synthflow Webhook Logs API

The Webhook Logs API from Synthflow — 2 operation(s) for webhook logs.

Scroll for all 19

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Platform API

OPEN COLLECTION

Platform subpackage_chat API

OPEN COLLECTION

Platform subpackage_contacts API

OPEN COLLECTION

Platform subpackage_mcp API

OPEN COLLECTION

Platform subpackage_memoryStores API

OPEN COLLECTION

Platform subpackage_phoneNumbers API

OPEN COLLECTION

Platform subpackage_webhookLogs API

OPEN COLLECTION

Platform API

OPEN COLLECTION

Scroll for all 8

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Synthflow MCP Server

MCP SERVER

Agent Skills 7

Packaged agent skills for driving this provider's APIs from an AI assistant.

create-assistant

AGENT SKILL

create-call

AGENT SKILL

create-eval

AGENT SKILL

create-simulation

AGENT SKILL

manage-actions

AGENT SKILL

setup-api-key

AGENT SKILL

synthflow-voice-ai

AGENT SKILL

Scroll for all 7

Synthflow API pricing

Prices published by Synthflow, read 2026-10-28 from synthflow.ai/pricing.

Plan	Price
Enterprise	Enterprise contracts start at $30,000 annually. Includes: Enterprise SLA and support terms scoped in contract; telephony; custom concurrency; integrations; se

Plan details, limits and sources →

Rate limits

Concurrent Active Calls: concurrent calls
CAPS (Call Attempts Per Second): call attempts per second

Rate-limit details →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Synthflow Plans Pricing

1 plans

PLANS

Synthflow Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Synthflow Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Synthflow

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Synthflow Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Synthflow Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Synthflow API Rules

48 rules · 36 errors 9 warnings 3 info

SPECTRAL

OpenAPI Overlays 7

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Synthflow Default Api Overlay

4 actions · update · synthflow-default-api-openapi.yml

DERIVED

Synthflow Subpackage Chat Api Overlay

4 actions · update · synthflow-subpackage-chat-api-openapi.yml

DERIVED

Synthflow Subpackage Contacts Api Overlay

4 actions · update · synthflow-subpackage-contacts-api-openapi.yml

DERIVED

Synthflow Subpackage Mcp Api Overlay

4 actions · update · synthflow-subpackage-mcp-api-openapi.yml

DERIVED

Synthflow Subpackage Memorystores Api Overlay

4 actions · update · synthflow-subpackage-memorystores-api-openapi.yml

DERIVED

Synthflow Subpackage Phonenumbers Api Overlay

4 actions · update · synthflow-subpackage-phonenumbers-api-openapi.yml

DERIVED

Synthflow Subpackage Webhooklogs Api Overlay

4 actions · update · synthflow-subpackage-webhooklogs-api-openapi.yml

DERIVED

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Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Synthflow Authentication

http/oauth2 · 3 schemes

SECURITY

Synthflow Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Synthflow Trust Center

ISO 27001:2022, SOC 2, GDPR, HIPAA, PCI DSS v4.0.1

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Synthflow Scopes

4 scopes · authorizationCode/deviceCode/refreshToken

4 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Synthflow Agentic Access

98 operations · 61 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LlmsText

LLMsTxt

MCPServer

AgentSkill

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Webhooks

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Components

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

OAuthScopes

Operate 5

Status, limits, changes, and where to get help

Roadmap

Support

StatusPage

ChangeLog

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: synthflow
name: Synthflow
description: Synthflow is an enterprise-ready no-code Voice AI platform for automating phone conversations at scale. The product
  combines a visual agent designer with in-house telephony, sub-100ms latency, and a 99.99% uptime guarantee, so businesses
  can build, deploy, and operate voice agents without third-party carriers. Synthflow exposes a REST Platform API for assistants,
  calls, phone numbers, knowledge bases, and custom actions, with bearer token authentication. The platform claims more than
  200 integrations including HubSpot, Salesforce, Cal.com, Zapier, and CCaaS systems, plus custom webhook actions. Compliance
  covers SOC 2, HIPAA, PCI DSS, and GDPR with end-to-end encryption and audit logging.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: sales
  trial: false
  try_now: false
  public: false
  label: Enterprise · Contact sales
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-08-13'
  method: searched
  note: Corrected 2026-08-13. https://synthflow.ai/pricing publishes a single Enterprise tier starting at $30,000 annually
    with a Contact Sales call to action; the earlier self-serve/free reading came from a scaffolded plans file. Synthflow's
    own concurrency docs confirm the former Pro, Growth and Agency self-serve plans are retired and closed to new subscriptions.
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/synthflow.png
x-docs-platform: fern
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Voice
- Voice Agents
- No-Code
- Telephony
- Phone
- Outbound
- Inbound
- CRM
- Webhook
- Custom Actions
- HIPAA
- SOC 2
- MCP
- Agent Skills
- Conversational AI
- SIP
- Simulation
- Knowledge Base
- Voice AI
tags_raw:
- Voice
- Voice Agents
- No-Code
- Telephony
- Phone
- Outbound
- Inbound
- CRM
- Webhooks
- Custom Actions
- HIPAA
- SOC 2
- MCP
- Agent Skills
- Conversational AI
- SIP
- Simulations
- Knowledge Base
- Voice AI
url: https://raw.githubusercontent.com/api-evangelist/synthflow/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: synthflow:platform-api
  name: Synthflow Platform API
  description: The Synthflow Platform API provides REST endpoints to manage assistants, phone numbers, calls, knowledge bases,
    and custom actions for no-code voice AI agents. Authentication is via bearer tokens and the API is available in multiple
    regions.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Assistant
  - Calls
  - Phone Numbers
  - Knowledge Bases
  - Actions
  - REST
  tags_raw:
  - Assistants
  - Calls
  - Phone Numbers
  - Knowledge Bases
  - Actions
  - REST
  properties:
  - type: Documentation
    url: https://docs.synthflow.ai
  - type: GettingStarted
    url: https://docs.synthflow.ai/getting-started-with-your-api
  - type: Signup
    url: https://app.synthflow.ai
  - type: APIReference
    url: https://docs.synthflow.ai/api-reference/platform-api
  - type: MCPServer
    url: https://mcp.synthflow.ai/mcp
  - type: RateLimits
    url: https://docs.synthflow.ai/concurrency-calling-limits
  - type: Pricing
    url: https://synthflow.ai/pricing
  - type: Authentication
    url: https://docs.synthflow.ai/getting-started-with-your-api
  features:
  - name: Assistants Management
    description: Create, configure, and manage AI voice assistants via API.
  - name: Inbound and Outbound Calls
    description: Manage inbound call routing and trigger outbound calls programmatically.
  - name: Phone Number Provisioning
    description: Provision and manage phone numbers across regions.
  - name: Knowledge Bases
    description: Create knowledge bases that ground agent responses in your content.
  - name: Custom Actions
    description: Define webhook-based custom actions that agents can call during conversations.
  - name: In-House Telephony
    description: Native telephony stack with sub-100ms latency and 99.99% uptime.
  - name: Multi-Region Deployment
    description: Deploy assistants in the region that fits your workload and compliance needs.
  - name: Compliance
    description: SOC 2, HIPAA, PCI DSS, and GDPR with end-to-end encryption and audit logs.
  useCases:
  - name: Inbound Call Automation
    description: Automate inbound support, reception, and qualification calls.
  - name: Outbound Campaigns
    description: Run outbound calling campaigns for sales, surveys, and reminders.
  - name: Appointment Setting
    description: Book and confirm appointments with calendar integrations.
  - name: Lead Qualification
    description: Qualify and route leads to sales reps with CRM updates.
  - name: Healthcare Workflows
    description: Run HIPAA-aligned voice workflows for patient outreach and intake.
  integrations:
  - name: HubSpot
  - name: Salesforce
  - name: Cal.com
  - name: Calendly
  - name: Zapier
  - name: Make
  - name: Twilio
  - name: Google Sheets
  - name: Slack
  - name: Webhooks
  - name: OpenAI
  - name: Anthropic
  - name: ElevenLabs
  - name: Cartesia
  - name: Deepgram
  authentication:
  - type: API Key
    description: HTTP Bearer authentication using an API key generated in the Synthflow dashboard.
- aid: synthflow:synthflow-chat-api
  name: Synthflow Chat API
  description: The chat API from Synthflow — 4 operation(s) for chat.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Chat
  tags_raw:
  - chat
  properties:
  - type: OpenAPI
    url: openapi/synthflow-chat-api-openapi.yml
- aid: synthflow:synthflow-contacts-api
  name: Synthflow Contacts API
  description: The contacts API from Synthflow — 2 operation(s) for contacts.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Contacts
  tags_raw:
  - contacts
  properties:
  - type: OpenAPI
    url: openapi/synthflow-contacts-api-openapi.yml
- aid: synthflow:synthflow-mcp-api
  name: Synthflow MCP API
  description: The mcp API from Synthflow — 3 operation(s) for mcp.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - MCP
  tags_raw:
  - mcp
  properties:
  - type: OpenAPI
    url: openapi/synthflow-mcp-api-openapi.yml
- aid: synthflow:synthflow-memory-stores-api
  name: Synthflow Memory Stores API
  description: The Memory Stores API from Synthflow — 1 operation(s) for memory stores.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Memory Stores
  properties:
  - type: OpenAPI
    url: openapi/synthflow-memory-stores-api-openapi.yml
- aid: synthflow:synthflow-actions-api
  name: Synthflow Actions API
  description: The Actions API from Synthflow — 5 operation(s) for actions.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Actions
  properties:
  - type: OpenAPI
    url: openapi/synthflow-actions-api-openapi.yml
- aid: synthflow:synthflow-analytics-api
  name: Synthflow Analytics API
  description: The Analytics API from Synthflow — 1 operation(s) for analytics.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/synthflow-analytics-api-openapi.yml
- aid: synthflow:synthflow-assistants-api
  name: Synthflow Assistants API
  description: The Assistants API from Synthflow — 5 operation(s) for assistants.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Assistant
  tags_raw:
  - Assistants
  properties:
  - type: OpenAPI
    url: openapi/synthflow-assistants-api-openapi.yml
- aid: synthflow:synthflow-calls-api
  name: Synthflow Calls API
  description: The Calls API from Synthflow — 4 operation(s) for calls.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Calls
  properties:
  - type: OpenAPI
    url: openapi/synthflow-calls-api-openapi.yml
- aid: synthflow:synthflow-knowledge-base-api
  name: Synthflow Knowledge Base API
  description: The Knowledge Base API from Synthflow — 6 operation(s) for knowledge base.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Knowledge Base
  properties:
  - type: OpenAPI
    url: openapi/synthflow-knowledge-base-api-openapi.yml
- aid: synthflow:synthflow-phonebooks-api
  name: Synthflow Phonebooks API
  description: The Phonebooks API from Synthflow — 4 operation(s) for phonebooks.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Phonebooks
  properties:
  - type: OpenAPI
    url: openapi/synthflow-phonebooks-api-openapi.yml
- aid: synthflow:synthflow-simulation-cases-api
  name: Synthflow Simulation Cases API
  description: The Simulation Cases API from Synthflow — 4 operation(s) for simulation cases.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Simulation Cases
  properties:
  - type: OpenAPI
    url: openapi/synthflow-simulation-cases-api-openapi.yml
- aid: synthflow:synthflow-simulation-scenarios-api
  name: Synthflow Simulation Scenarios API
  description: The Simulation Scenarios API from Synthflow — 2 operation(s) for simulation scenarios.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Simulation Scenarios
  properties:
  - type: OpenAPI
    url: openapi/synthflow-simulation-scenarios-api-openapi.yml
- aid: synthflow:synthflow-simulation-suites-api
  name: Synthflow Simulation Suites API
  description: The Simulation Suites API from Synthflow — 3 operation(s) for simulation suites.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Simulation Suites
  properties:
  - type: OpenAPI
    url: openapi/synthflow-simulation-suites-api-openapi.yml
- aid: synthflow:synthflow-simulations-api
  name: Synthflow Simulations API
  description: The Simulations API from Synthflow — 4 operation(s) for simulations.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Simulation
  tags_raw:
  - Simulations
  properties:
  - type: OpenAPI
    url: openapi/synthflow-simulations-api-openapi.yml
- aid: synthflow:synthflow-subaccounts-api
  name: Synthflow Subaccounts API
  description: The Subaccounts API from Synthflow — 3 operation(s) for subaccounts.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Subaccounts
  properties:
  - type: OpenAPI
    url: openapi/synthflow-subaccounts-api-openapi.yml
- aid: synthflow:synthflow-voices-api
  name: Synthflow Voices API
  description: The Voices API from Synthflow — 1 operation(s) for voices.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Voice
  tags_raw:
  - Voices
  properties:
  - type: OpenAPI
    url: openapi/synthflow-voices-api-openapi.yml
- aid: synthflow:synthflow-phone-numbers-api
  name: Synthflow Phone Numbers API
  description: The Phone Numbers API from Synthflow — 3 operation(s) for phone numbers.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Phone Numbers
  properties:
  - type: OpenAPI
    url: openapi/synthflow-phone-numbers-api-openapi.yml
- aid: synthflow:synthflow-webhook-logs-api
  name: Synthflow Webhook Logs API
  description: The Webhook Logs API from Synthflow — 2 operation(s) for webhook logs.
  humanURL: https://docs.synthflow.ai
  baseURL: https://api.synthflow.ai
  tags:
  - Webhook Logs
  properties:
  - type: OpenAPI
    url: openapi/synthflow-webhook-logs-api-openapi.yml
common:
- type: FinOps
  url: finops/synthflow-finops.yml
- type: CapabilityMap
  url: capabilities/synthflow-capability-edges.yml
  name: Synthflow Business Capability Map
- type: AgenticAccess
  url: agentic-access/synthflow-agentic-access.yml
- type: DomainSecurity
  url: security/synthflow-domain-security.yml
- type: Authentication
  url: authentication/synthflow-authentication.yml
- type: Website
  url: https://synthflow.ai
- type: Documentation
  url: https://docs.synthflow.ai
- type: Blog
  url: https://synthflow.ai/blog
- type: Pricing
  url: https://synthflow.ai/pricing
- type: TermsOfService
  url: https://synthflow.ai/terms-of-service
- type: PrivacyPolicy
  url: https://synthflow.ai/privacy-policy
- type: X
  url: https://x.com/synthflowai
- type: LinkedIn
  url: https://www.linkedin.com/company/synthflowai
- type: LlmsText
  url: https://docs.synthflow.ai/llms.txt
- type: LLMsTxt
  url: llms/synthflow-llms.txt
- type: DeveloperPortal
  url: https://docs.synthflow.ai
- type: APIReference
  url: https://docs.synthflow.ai/api-reference/platform-api
- type: GettingStarted
  url: https://docs.synthflow.ai/getting-started
- type: GitHubOrganization
  url: https://github.com/SynthFlowAI
- type: Roadmap
  url: https://feedback.synthflow.ai/roadmap
- type: Support
  url: mailto:support@synthflow.ai
- type: SignUp
  url: https://app.synthflow.ai
- type: StatusPage
  url: https://status.synthflow.ai/
- type: Compliance
  url: https://security.synthflow.ai/
- type: TrustCenter
  url: security/synthflow-trust-center.yml
- type: MCPServer
  url: mcp/synthflow-mcp.yml
- type: ToolCrosswalk
  url: mcp/synthflow-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: WellKnown
  url: well-known/synthflow-well-known.yml
- type: Packages
  url: packages/synthflow-packages.yml
- type: Webhooks
  url: asyncapi/synthflow-webhooks.yml
- type: ErrorCatalog
  url: errors/synthflow-problem-types.yml
- type: Conventions
  url: conventions/synthflow-conventions.yml
- type: Lifecycle
  url: lifecycle/synthflow-lifecycle.yml
- type: ChangeLog
  url: changelog/synthflow-changelog.yml
- type: Conformance
  url: conformance/synthflow-conformance.yml
- type: OAuthScopes
  url: scopes/synthflow-scopes.yml
- type: Sandbox
  url: sandbox/synthflow-sandbox.yml
- type: DataModel
  url: data-model/synthflow-data-model.yml
- type: Components
  url: components/synthflow-components.yml
- type: Overlay
  url: overlays/synthflow-default-api-overlay.yaml
- type: Plans
  url: plans/synthflow-plans-pricing.yml
- type: RateLimits
  url: rate-limits/synthflow-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 34
  pass: local-v1

Synthflow API — frequently asked questions

Does Synthflow have an API?

Yes. APIs.io lists 19 APIs from Synthflow, including Synthflow Platform API, Synthflow Chat API and Synthflow Contacts API, and 16 more.

Is there an OpenAPI specification for the Synthflow API?

Yes. APIs.io indexes 18 OpenAPI specifications for Synthflow, each linked for download from this page.

How do I authenticate with the Synthflow API?

Synthflow documents its authentication (http/oauth2 · 3 schemes). The details are profiled on APIs.io as Synthflow Authentication.

How much does the Synthflow API cost?

Synthflow publishes its prices; its Enterprise plan is Enterprise contracts start at $30,000 annually. as of 2026-10-28. APIs.io lists 1 pricing plan for Synthflow, with each plan's price, limits and inclusions under Pricing on this page.

Does Synthflow have an MCP server?

Yes. APIs.io lists 1 MCP server for Synthflow.

Is the Synthflow API ready for AI agents?

Synthflow has a Kin Score of 62.3 out of 100 (strong) and an Agent Readiness score of 54.9 (agent-ready), scored by API Evangelist on 2026-11-06.

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