# Vercel Connect vs SealGate | MCP Gateway Comparison

Vercel Connect vs SealGate compared across runtime enforcement, DLP, stdio handling, device-level management and audit. See where each MCP gateway fits and why teams pick SealGate for runtime agent data security.

Source: https://sealgate.ai/comparison/vercel-connect-vs-sealgate

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Agent credential broker

# Vercel Connect vs SealGate

How Vercel Connect and SealGate compare for securing AI agents and their MCP tool calls, and where each one fits.

Last updated: September 2026

Vercel Connect. Vercel Connect lets apps and agents deployed on Vercel reach Slack, GitHub, Salesforce, MCP servers and 100+ other services without storing provider secrets: the deployment proves its identity over Vercel OIDC and gets back a short-lived, task-scoped token.

SealGate. A runtime agentic data firewall that blocks dangerous tool calls before they execute, scans tool traffic for data loss and prompt injection, discovers shadow MCP servers on the device, and streams a provable audit trail to your SIEM.

Bottom line: Vercel Connect is a credential broker that swaps stored secrets for short-lived tokens issued to Vercel deployments; SealGate is a device-level firewall that sits in the tool-call path, blocks dangerous calls inline, and scans traffic for data loss and prompt injection.

## Vercel Connect 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 | Vercel Connect |
| --- | --- | --- |
| How local stdio MCP servers are handled. Whether your local MCP server stays on the device or is shipped elsewhere. | Tunnel in place (Yes) | Token broker (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) | SDK + MCP (No) |
| Runtime enforcement. Blocks a dangerous tool call before it executes, not just after the fact. | ✓ Yes | ✕ No |
| 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 | ~ Partial |
| SIEM integration and export. Streams audit events to Splunk, Sentinel and other SIEMs. | ✓ Yes | ~ Partial |
| SSO, SCIM and RBAC. Enterprise identity, group sync and role-based access. | ✓ Yes | ~ Partial |
| 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 | ✓ Yes |
| Open source core. An open, inspectable core rather than a closed proxy. | ✕ No | – Not publicly verified |

›

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

## Where SealGate is different

- SealGate inspects every tool call and blocks dangerous ones inline; Vercel Connect hands your code a scoped token and steps out of the path, so the calls made with that token are not inspected.
- SealGate scans tool inputs and outputs for data loss and prompt injection; Vercel Connect governs who can get a credential, not what the agent does with it.
- SealGate runs a device-level agent that governs local stdio MCP servers and discovers shadow MCP; Vercel Connect is built around Vercel deployments and their OIDC identity, with no on-device presence.
- SealGate self-hosts in your own environment and governs the agent CLI as well as MCP; Vercel Connect runs on Vercel's platform and is consumed through its SDK.

## 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) [Connect your agent to messaging apps](https://sealgate.ai/connect)

## Get AI agents signed off by security, faster

Adopt AI agents and connect them to real data without leaking it. Start free, or book a walkthrough.

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

## Frequently asked questions

For how gateways work in general and what to look for, see our [guide to choosing an MCP gateway](https://sealgate.ai/guides/mcp-gateway) .

Can I use Vercel Connect and SealGate together? Yes. They solve different layers. Vercel Connect removes long-lived provider secrets from Vercel deployments; SealGate governs what agents do at tool-call time on developer devices and in your own environment. An agent can get its token from Vercel Connect while SealGate enforces policy, DLP and injection defense on the calls it makes.

Is SealGate a good alternative to Vercel Connect? Yes. Vercel Connect lets apps and agents deployed on Vercel reach Slack, GitHub, Salesforce, MCP servers and 100+ other services without storing provider secrets: the deployment proves its identity over Vercel OIDC and gets back a short-lived, task-scoped token. SealGate is a runtime agentic data firewall that blocks dangerous tool calls before they execute, scans tool traffic for data loss and prompt injection, discovers shadow MCP servers on the device, and streams a provable audit trail to your SIEM. If runtime data security is the priority, SealGate is a strong alternative.

What does SealGate do that Vercel Connect does not? SealGate inspects every tool call and blocks dangerous ones inline; Vercel Connect hands your code a scoped token and steps out of the path, so the calls made with that token are not inspected.

## Sources

Claims about Vercel Connect 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.

- [Introducing Vercel Connect](https://vercel.com/blog/introducing-vercel-connect)
- [Vercel Connect docs](https://vercel.com/docs/connect)
- [Vercel Connect authentication](https://vercel.com/docs/connect/concepts/authentication)
- [Vercel Connect is generally available](https://vercel.com/changelog/vercel-connect-ga)

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