# WorkOS Review 2026: Features, Strengths and Gaps | SealGate

An honest WorkOS review: what it is, where it is strong, and where it falls short for runtime agent data security, with a source-checked feature comparison against SealGate.

Source: https://sealgate.ai/comparison/workos-review

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MCP auth and identity platform

# WorkOS review

What WorkOS is, where it is strong, and where it falls short for securing AI agents and their tool calls. Every claim is drawn from WorkOS's own public material, listed in Sources.

Last updated: September 2026

## What WorkOS is

WorkOS is an enterprise identity platform whose Auth for MCP turns your application into an OAuth 2.1 authorization server for AI agents: agent identities distinct from humans, per-tool scopes through Fine-Grained Authorization, plus SSO, Directory Sync (SCIM), RBAC and audit logs, delivered as a cloud service that MCP server builders integrate. WorkOS also ships Airlock, a separate intent-based runtime authorization product for agents, which is compared with SealGate on its own page.

## Where WorkOS is strong

- Provable per-call audit. A receipt for every call: agent, tool, policy version, result.
- SIEM integration and export. Streams audit events to Splunk, Sentinel and other SIEMs.
- SSO, SCIM and RBAC. Enterprise identity, group sync and role-based access.

## Where WorkOS falls short

Measured against a runtime agent data firewall. These are the gaps that matter if your priority is stopping data loss at the point of the tool call.

- SealGate runs a device-level agent that discovers shadow MCP servers on the endpoint, keeps local stdio servers on the device through a tunnel, and self-hosts fully in your own environment; WorkOS has no endpoint presence, and even its separate Airlock runtime product sits behind a gateway in WorkOS's cloud rather than on the device.
- SealGate scans all tool traffic for data loss and prompt injection inline at runtime; WorkOS's identity products do neither, and while its Airlock product adds intent-based content rules (secrets, financial data, a prompt-injection rule), that is rule-based intent evaluation in WorkOS's cloud rather than deep content DLP across every tool call.
- SealGate governs the agent CLI and the LLM API as well as MCP; WorkOS's identity products are an OAuth authorization layer that MCP server builders integrate, consumed as Auth for MCP rather than an inline gateway.
- Credit to WorkOS: agent identity, per-tool scopes, OAuth consent and an audit log compliance teams already trust ship off the shelf. That identity layer is orthogonal to SealGate's runtime data-loss control, which is why teams commonly run both.

## WorkOS vs SealGate, feature by feature

SealGate leads with the rows at the top, its clearest points of difference, then the parity rows every enterprise gateway is expected to cover.

| Capability | SealGate | WorkOS |
| --- | --- | --- |
| How local stdio MCP servers are handled. Whether your local MCP server stays on the device or is shipped elsewhere. | Tunnel in place (Yes) | Auth layer only (No) |
| Local stdio servers stay on-device. The server keeps running on the machine, with no host-and-lift and no HTTP re-expose. | ✓ Yes | ✕ No |
| Device-level management. An endpoint agent that discovers and governs MCP activity on the device itself. | ✓ Yes | ✕ No |
| Interface coverage. Whether the gateway governs only the MCP protocol, or the agent CLI and LLM API too. | MCP + CLI (Yes) | Auth for MCP (No) |
| Runtime enforcement. Blocks a dangerous tool call before it executes, not just after the fact. | ✓ Yes | ~ Partial |
| DLP, PII and secrets scanning. Inspects tool inputs and outputs for sensitive data at runtime. | ✓ Yes | ✕ No |
| Prompt injection and tool-poisoning defense. Detects and stops injection, tool poisoning and rug-pull attacks. | ✓ Yes | ✕ No |
| Gateway holds the credential. The gateway issues the final call so the agent cannot bypass policy and retry. | ✓ Yes | ~ Partial |
| Shadow MCP discovery. Finds unauthorized MCP servers before they are used. | ✓ Yes | ✕ No |
| Provable per-call audit. A receipt for every call: agent, tool, policy version, result. | ✓ Yes | ✓ Yes |
| SIEM integration and export. Streams audit events to Splunk, Sentinel and other SIEMs. | ✓ Yes | ✓ Yes |
| SSO, SCIM and RBAC. Enterprise identity, group sync and role-based access. | ✓ Yes | ✓ Yes |
| Tool-level policy. Read and write tiers, per-tool rules and human-in-the-loop approvals. | ✓ Yes | ~ Partial |
| Self-host, on-prem or VPC. Run it in your own environment for data residency. | ✓ Yes | ✕ No |
| Compliance mapping. Evidence mapped to SOC 2, NIST AI RMF and the EU AI Act. | ~ Partial | ~ Partial |
| Low latency overhead. Minimal added latency on the tool-call path. | ✓ Yes | – Not publicly verified |
| Open source core. An open, inspectable core rather than a closed proxy. | ✕ No | ✕ No |

›

✓ Strong or native ~ Partial or via a partner ✕ Not offered – Not publicly verified

Bottom line: WorkOS is the authentication and authorization layer you build into an MCP server; SealGate is the runtime firewall in front of the agent that blocks dangerous tool calls, scans traffic for data loss and prompt injection, and discovers shadow MCP on the device, so the two are often paired rather than swapped.

## How SealGate delivers this

The capabilities above are covered in depth on the product, security and deployment pages.

[How the SealGate gateway works](https://sealgate.ai/product) [Runtime DLP and prompt-injection defense](https://sealgate.ai/security) [Self-hosting and data residency](https://sealgate.ai/self-hosting)

## Evaluating WorkOS for agent security?

See how SealGate blocks dangerous tool calls, scans for data loss, and keeps local servers on the device. Start free, or book a walkthrough.

[Start Free](https://dashboard.sealgate.ai) [Book a Demo](https://sealgate.ai/contact)

## Frequently asked questions

Is SealGate an alternative to WorkOS? They overlap on securing agent access to MCP tools, but they answer different questions. WorkOS answers who an agent is and whether it may call a tool: OAuth 2.1 authorization, agent identities, per-tool scopes and audit logs that MCP server builders integrate. SealGate answers whether a specific tool call is safe to execute and enforces it inline: it blocks dangerous calls before they run, scans traffic for data loss and prompt injection, and discovers shadow MCP servers on the device. If you need runtime data security rather than an auth layer, SealGate is the alternative, and many teams run WorkOS for identity and SealGate for the firewall.

Does WorkOS secure AI agent tool calls the way SealGate does? WorkOS's identity products enforce authorization: they check per-tool permissions before a call and log it, so an agent only reaches tools it is entitled to, but they do not inspect the contents of a tool call. WorkOS's separate Airlock product does add runtime intent-based enforcement with content rules and a prompt-injection rule (compared with SealGate on its own page), yet it runs behind a gateway in WorkOS's cloud. SealGate inspects all tool traffic inline on the device, keeps local stdio servers on-device, discovers shadow MCP, and self-hosts, which is the runtime layer WorkOS's identity products leave out.

What is WorkOS? WorkOS is an enterprise identity platform whose Auth for MCP turns your application into an OAuth 2.1 authorization server for AI agents: agent identities distinct from humans, per-tool scopes through Fine-Grained Authorization, plus SSO, Directory Sync (SCIM), RBAC and audit logs, delivered as a cloud service that MCP server builders integrate. WorkOS also ships Airlock, a separate intent-based runtime authorization product for agents, which is compared with SealGate on its own page.

What are the main limitations of WorkOS? The clearest gap for teams focused on runtime data security: SealGate runs a device-level agent that discovers shadow MCP servers on the endpoint, keeps local stdio servers on the device through a tunnel, and self-hosts fully in your own environment; WorkOS has no endpoint presence, and even its separate Airlock runtime product sits behind a gateway in WorkOS's cloud rather than on the device. Weigh this against your own priorities before deciding.

Is WorkOS worth it? It depends on the axis you care about. WorkOS is the authentication and authorization layer you build into an MCP server; SealGate is the runtime firewall in front of the agent that blocks dangerous tool calls, scans traffic for data loss and prompt injection, and discovers shadow MCP on the device, so the two are often paired rather than swapped. Compare the two on the capabilities that matter to you.

## Sources

Claims about WorkOS are drawn from its own public documentation, last reviewed September 2026. If something is out of date, tell us at [hello@sealgate.ai](mailto:hello@sealgate.ai) and we will correct it.

- [WorkOS Auth for MCP](https://workos.com/mcp)
- [WorkOS AuthKit MCP docs](https://workos.com/docs/authkit/mcp)
- [WorkOS: the hard part of an MCP gateway is auth](https://workos.com/blog/mcp-gateway-hard-part-is-auth)
- [WorkOS](https://workos.com)

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