Connect
Optimize
Secure
Put your AI agents to work.
From prototype to production, StackOne's pricing scales with you.
Starter
Free
Features:
- 270+ pre-built connectors
- 17,000+ pre-built actions
- Managed auth & multi-tenancy
- Connector Builder An agent for your coding assistant to build production-ready, custom connectors and actions.
- 1 custom connector via the Connector Builder
- 2 projects Workspaces to organize your connectors, actions, and team members.
- Action playground
- In-app chat support
- MCP protocol, AI action SDK, API
Up to 1,000 free action calls per month.
$3 per 1,000 calls thereafter.
Core
Contact Us
All Starter features, plus:
- Premium pre-built connectors Higher-value pre-built integrations only available on paid plans.
- Customize pre-built connectors
- Unlimited custom connectors
- 10 projects Workspaces to organize your connectors, actions, and team members.
- A2A protocol
- Multi-region data processing
- Dedicated Slack channel
- SOC2 Type II certification
$0.30 per 1,000 action calls or lower
with volume discounts.
Enterprise
Contact Us
All Core features, plus:
- StackOne professional services
- Unlimited projects
- Any AWS or GCP region data processing
- On-premise deployment
- Custom SLAs and uptime guarantees
$0.30 per 1,000 action calls or lower
with volume discounts.
What's included on each plan
| Feature | Starter | Core | Enterprise |
|---|---|---|---|
| Connect | |||
| Pre-built agent connectors Ready-to-use integrations with popular apps. Premium connectors unlock high-value integrations on paid plans. | 270+ | 270+ | 270+ |
| Pre-built agent actions Ready-to-use operations your agents can execute across all connected apps — no development required. | 17,000+ | 17,000+ | 17,000+ |
| Custom-built agent connectors A production-ready, custom connector you've built using the StackOne AI Connector Builder. | 1 | Unlimited | Unlimited |
| AI Connector Builder A coding-agent compatible agent that helps vibe-code safely new production-ready connectors and actions. | |||
| AI action playground Connect apps and prompt our playground agent to take actions — no code required. | |||
| Agent tool authentication We handle OAuth flows, token refresh, and credential storage so you don't have to. | |||
| Multi-tenancy Serve multiple customers from one deployment with isolated data, credentials, and configurations. | |||
| MCP protocol Connect agents using Anthropic's Model Context Protocol for standardized tool access. | |||
| A2A protocol Enable agent-to-agent communication using the Linux Foundation's open standard. | — | ||
| AI action SDKs Python and TypeScript SDKs with native support for OpenAI, Vercel AI SDK, LangChain, LangGraph, Pydantic AI, and Crew AI. | |||
| API / RPC Full REST API for programmatic access and direct RPC-style calls to any action. | |||
| Optimize | |||
| Agent tools discovery Helps agents find the right action across thousands of options quickly to minimize context window. | |||
| Tool calling execution engine (Falcon) Executes agent actions accurately, reliably, and securely. | |||
| Real-time infrastructure Instant, low-latency action execution — built for AI agents that need to respond in real time. | |||
| Agent action logs API Retrieve request and response logs programmatically for debugging, monitoring, or compliance audits. | — | ||
| Secure | |||
| Projects Workspaces to organize your connectors, actions, and team members with role-based access. | 2 | 10 | Unlimited |
| Data processing region Choose where your data is processed to meet regional compliance requirements. | US or EU | US + EU | Any AWS or GCP region |
| On-premise deployment Deploy StackOne inside your own VPC or data center for complete data residency and network isolation. | — | — | |
| Audit logs Track all actions and API calls for debugging and compliance. | Basic | Advanced | Advanced |
| GDPR Compliant with EU General Data Protection Regulation requirements. | |||
| HIPAA Compliant with US healthcare data privacy requirements. | |||
| SOC 2 Independently audited security controls for enterprise trust. | |||
| Okta SSO Sign in with your company's Okta identity provider. | — | — | |
| SAML SSO Sign in using your company's SAML-based identity provider. | — | — | |
| Support | |||
| Communication How you reach our support team for help. | In-app chat | Dedicated Slack channel | Direct with solution engineering |
| Professional services Our team builds custom connectors and integrations for you. | — | — | |
| Uptime SLA Guaranteed platform availability with contractual commitments. | — | — | |
Frequently asked questions
StackOne offers three pricing tiers:
Starter (Free) — $0: All standard pre-built connectors, 17,000+ actions, 1 custom connector via the connector builder, 2 projects, managed auth & multi-tenancy, MCP protocol, AI action SDK, API. Up to 1,000 free action calls/month ($0.003/call after).
Core — everything in Starter, plus: premium pre-built connectors, customize or build unlimited custom connectors, 10 projects, A2A protocol, multi-region data processing, dedicated Slack support, SOC2 Type II, and volume discount pricing.
Enterprise — everything in Core, plus: professional services, custom SLAs, unlimited projects, any AWS or GCP region data processing, and on-premise deployment.
Starter (Free) — $0: All standard pre-built connectors, 17,000+ actions, 1 custom connector via the connector builder, 2 projects, managed auth & multi-tenancy, MCP protocol, AI action SDK, API. Up to 1,000 free action calls/month ($0.003/call after).
Core — everything in Starter, plus: premium pre-built connectors, customize or build unlimited custom connectors, 10 projects, A2A protocol, multi-region data processing, dedicated Slack support, SOC2 Type II, and volume discount pricing.
Enterprise — everything in Core, plus: professional services, custom SLAs, unlimited projects, any AWS or GCP region data processing, and on-premise deployment.
Yes — the Starter plan is completely free. No credit card required. It includes all standard pre-built connectors, 17,000+ pre-built actions, managed auth & multi-tenancy, 1 custom connector, 2 projects, up to 1,000 free action calls per month, and in-app chat support. Additional calls beyond 1,000/month are $0.003 each.
The connector builder is a generative integration tool that automatically creates connectors to any SaaS application or internal system with an API. Provide an API specification or endpoint URL, and the builder analyzes the schema, retrieves knowledge about similar connectors from its training data, designs actions, configures authentication flows, and produces a fully functional connector in StackOne's execution engine, compatible with MCP and A2A protocols. You can further customize the output or deploy immediately.
A project is a workspace to organize your connectors, actions, and team with role-based access.
In the context of StackOne and AI agents, action calls are AI agent or API requests to the StackOne platform to execute a specific operation or task in a connected app. For example, an agent decides to create a Jira ticket and makes an action call to StackOne. StackOne's Falcon Engine executes that action on Jira (potentially making multiple API calls under the hood) and returns the result to the agent.
Premium connectors are high-value pre-built integrations that are only available on paid plans (not the free tier).
StackOne is built for enterprise compliance and security from day one. We're SOC2 Type II, HIPAA, and GDPR certified with real-time operations (no data storage by default), multi-tenancy, RBAC, audit logs, and regional data processing controls.
Our managed infrastructure handles authentication, webhooks, and data synchronization so you can focus on building. SSO (OKTA/SAML) and uptime SLAs are available on our Enterprise tier.
Our managed infrastructure handles authentication, webhooks, and data synchronization so you can focus on building. SSO (OKTA/SAML) and uptime SLAs are available on our Enterprise tier.
StackOne operates in real-time without storing your data by default. We're SOC2 Type II, HIPAA, and GDPR certified with multi-tenancy, multi-tier permission setting, encrypted credential storage, audit logs, and regional data processing. We enforce safe AI agent actions and operations.
StackOne provides AI-optimized actions instead of raw APIs or low-quality MCPs, reducing content load and improving reasoning accuracy. Smart tool search and intelligent caching minimize context window overhead and reduce latency. Automatic retries handle transient failures, and managed authentication streamlines connections.
The result: higher action success rates, faster execution, and more reliable agent behavior in production.
The result: higher action success rates, faster execution, and more reliable agent behavior in production.
StackOne supports the Linux Foundation's Agent-to-Agent (A2A) protocol, an open standard that helps agents communicate and share tools and context. When an agent needs to update a record or fetch data on an app, it can communicate with StackOne's platform through A2A. This ensures reliable, structured communication.
StackOne's execution engine, named Falcon, acts as the execution layer between AI agents and applications. When an agent decides to take an action, it sends a request to Falcon via A2A, MCP, or an API. Falcon handles the connected app authentication, validates inputs, executes the action reliably, and returns clean outputs to the agent. The separation of agent reasoning from Falcon execution is what ensures reliable, high success rate actions in production.
Customers
Product teams love building with StackOne.
Scroll to explore
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.