Integration Infrastructure
for AI Agents
Your agent thinks, StackOne takes action. Connect, optimize, and secure your AI agents' external interactions to fully automate workflows.
AI Agents
Connect
MCP and A2A to REST, SOAP, and proprietary APIs.
Optimize
Tool discovery, data shaping, and reliable execution.
Secure
Scoped permissions, audit trails, and observability.
StackOne Integration Layer
StackOne Integration LayerConnect
200+ connectors, build your own, and multi-protocol support.
Optimize
Context, token, and speed optimization infrastructure.
Secure
Permissions API and prompt injection protection.
200+ AI Agent Connectors.
10,000+ Actions.
Extend Any Connector.
Build Your Own.
SOAP, OData, XML-RPC, proprietary APIs—doesn't matter. AI Builder creates production-ready connectors from any enterprise system in minutes, not months.
Connect Using
Any Protocol.
Your frameworks. Your agents. Your systems. Four ways to connect them all to StackOne.
Native tool calling for any MCP-compatible agent.
✓Works with any MCP-compatible client, regardless of language or framework.
OpenAI Agents SDK·
TypeScriptimport { Agent, MCPServerStreamableHttp, run } from "@openai/agents";
const authToken = Buffer.from(
`${process.env.STACKONE_API_KEY}:`
).toString("base64");
const stackoneMcp = new MCPServerStreamableHttp({
url: "https://api.stackone.com/mcp?x-account-id=<account_id>",
requestInit: {
headers: {
Authorization: `Basic ${authToken}`,
},
},
});
await stackoneMcp.connect();
const agent = new Agent({
name: "stackone-assistant",
model: "gpt-5.2",
mcpServers: [stackoneMcp],
});
const result = await run(agent, "List Salesforce accounts");
console.log(result.finalOutput);Powered by StackOne's
Execution Engine
StackOne connectors are built on our next-generation execution engine, aka Falcon. It's full of features designed to optimize your agent's context, token usage, and reliability.
Integrations-As-Code
Every connector is a declarative YAML file in Git — reviewable in PRs, testable locally, reproducible across environments.
Multi-Tenancy
Isolated execution contexts per customer with scoped credentials, permissions, and full audit logs.
Rate Limit Handling
Automatic per-provider throttling, queuing, and retries so your agents never hit a limit.
Managed Authentication
OAuth, API keys, and token refresh handled automatically for every connector. Your agent never touches a secret.
Low-Latency Transformations
Real-time data shaping and caching that delivers full payloads to your app and lean summaries to your agent.
Multi-Protocol
One connector definition, automatically exposed via REST API, MCP, A2A, and AI SDKs with zero extra config.
Integrations-As-Code
Every connector is a declarative YAML file in Git — reviewable, testable, reproducible.
Managed Authentication
OAuth, API keys, and token refresh handled automatically. Your agent never touches a secret.
Multi-Tenancy
Isolated execution contexts per customer with scoped credentials and audit logs.
Low-Latency Transformations
Real-time data shaping and caching for lean context windows and full app payloads.
Rate Limit Handling
Automatic per-provider throttling, queuing, and retries so agents never hit a limit.
Multi-Protocol
One connector definition, exposed via REST API, MCP, A2A, and AI SDKs.
Enforce Agent Permissions
& Governance.
Control exactly what each agent can access across every integration. StackOne's Unified Permissions API normalizes RBAC, scopes, and ACLs into a single model — so one set of rules works everywhere.
Agent calls get_document() via StackOne
user:alice tenant:acme Checks which docs were shared with alice by admin
3 docs found, filtered to 1 doc shared with alice
audit logged < 1ms Unified Permission Model
Every provider models permissions differently. StackOne maps roles, scopes, and access levels to a single schema so your application logic stays clean and portable.
Per-Tenant Scoping
Each customer gets isolated credentials and connections. Define access rules once and enforce them across every connected provider — per user, per agent, per tenant.
Real-Time Checks
Verify access before every operation. Sub-millisecond permission checks with local caching ensure governance is enforced without adding latency.
Defend Against
Prompt Injection.
AI agents that call tools are exposed to indirect prompt injection — the #1 OWASP LLM risk. StackOne Defender detects and neutralizes malicious content hidden in tool responses before it reaches the LLM.
Defender
0.88
F1 Score
LLM Moderation
0.82
F1 Score
Gateway Proxy
0.65
F1 Score
Regex Patterns
0.40
F1 Score
Two-Tier Defense Pipeline
Tier 1 catches known attack patterns in ~1ms. Tier 2 runs a fine-tuned ML classifier in ~10ms for adversarial attacks that evade pattern matching. F1 score: 0.87-0.88.
Scans Every Tool Response
Emails, documents, PRs, CRM records — any tool response can contain hidden instructions. Defender scans and sanitizes content before your agent processes it.
Open Source, Zero Latency
Runs in-process with a bundled ONNX model — no external API calls, no inference costs, no network latency. Three lines of code to integrate.
Your CISO Says Yes.
Real-time by design, StackOne never stores your customers' data by default. SOC 2 Type II certified, GDPR and HIPAA compliant — built for enterprise from day one.
Zero Data Storage
StackOne proxies every request in real-time. No customer data is persisted by default — nothing to breach, nothing to leak.
Full Audit Trail
Every API call, permission check, and credential use is logged. Complete audit trail across all providers from a single endpoint — ready for compliance reviews.
Certified & Compliant
SOC 2 Type II certified infrastructure with encrypted credentials at rest, automatic token refresh, and real-time monitoring across every integration.
SOC2 II Certified 
CCPA Compliant 
GDPR Compliant 
HIPAA Compliant What Will Your Agent Do?
Use StackOne to connect your AI agent to your HRIS, identity management, and LMS to automate employee onboarding.
Learn more →Use StackOne to connect your AI agent to your CRM, email, and calendar tools to automate deal risk scoring and pipeline alerts.
Learn more →Use StackOne to connect your AI agent to your telephony, CRM, and messaging tools to automate voice call summarization and CRM logging.
Learn more →Use StackOne to connect your AI agent to your accounting, payment, and analytics systems to automate month-end accruals and journal entries.
Learn more →Use StackOne to connect your AI agent to your marketing automation, email, and analytics platforms to automate campaign performance reporting.
Learn more →Frequently Asked Questions
Put Your Agents to Work
All the tools you need to build and scale AI agents integrations, with best-in-class security & privacy.