# IBM ContextForge vs Sealgate | MCP Gateway Comparison IBM ContextForge 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/ibm-contextforge-vs-sealgate --- [Docs](https://sealgate.ai/docs/) [Product](https://sealgate.ai/product) AI Data Leaks [Guides](https://sealgate.ai/guides/) [Blog](https://sealgate.ai/blog/) [Pricing](https://sealgate.ai/pricing) [Comparison](https://sealgate.ai/comparison) [Book a demo](https://cal.com/eito80/demo) [Start Free](https://dashboard.sealgate.ai) Open-source MCP gateway # IBM ContextForge vs Sealgate How IBM ContextForge and Sealgate compare for securing AI agents and their MCP tool calls, and where each one fits. Last updated: September 2026 IBM ContextForge. IBM ContextForge (MCP Gateway) is an open-source, Apache-2.0 AI gateway, registry and proxy that fronts MCP, A2A and REST APIs behind one endpoint, with a plugin framework for guardrails, a PII filter and federation. 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: ContextForge is a self-hosted open-source gateway and registry with plugin-based guardrails; Sealgate adds a device-level agent, shadow-MCP discovery, agent-CLI coverage and inline injection defense on top of the gateway. ## IBM ContextForge 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 | IBM ContextForge | | --- | --- | --- | | How local stdio MCP servers are handled. Whether your local MCP server stays on the device or is shipped elsewhere. | Tunnel in place (Yes) | Wrap to HTTP (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 | ~ Partial | | 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) | MCP + REST/A2A (Partial) | | Runtime enforcement. Blocks a dangerous tool call before it executes, not just after the fact. | ✓ Yes | ✓ Yes | | DLP, PII and secrets scanning. Inspects tool inputs and outputs for sensitive data at runtime. | ✓ Yes | ✓ Yes | | Prompt injection and tool-poisoning defense. Detects and stops injection, tool poisoning and rug-pull attacks. | ✓ Yes | ~ Partial | | 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 | ✓ Yes | | Compliance mapping. Evidence mapped to SOC 2, NIST AI RMF and the EU AI Act. | ~ Partial | – Not publicly verified | | 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 | ✓ Yes | ✓ Strong or native ~ Partial or via a partner ✕ Not offered – Not publicly verified ## Where Sealgate is different - Sealgate runs a device-level agent and discovers shadow MCP servers; ContextForge is a central gateway you register servers into, with no endpoint discovery. - Sealgate governs the agent CLI as well as MCP; ContextForge governs MCP, REST and A2A traffic through the gateway. - Sealgate keeps local stdio servers on the device through a tunnel; ContextForge wraps stdio servers and re-exposes them over HTTP from wherever the gateway runs. ## 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 Is Sealgate a good alternative to IBM ContextForge? Yes. IBM ContextForge (MCP Gateway) is an open-source, Apache-2.0 AI gateway, registry and proxy that fronts MCP, A2A and REST APIs behind one endpoint, with a plugin framework for guardrails, a PII filter and federation. 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 IBM ContextForge does not? Sealgate runs a device-level agent and discovers shadow MCP servers; ContextForge is a central gateway you register servers into, with no endpoint discovery. ## Sources Claims about IBM ContextForge 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. - [IBM ContextForge MCP Gateway (GitHub)](https://github.com/IBM/mcp-context-forge) - [IBM ContextForge docs](https://ibm.github.io/mcp-context-forge/) ## Compare Sealgate with other gateways [MintMCP vs Sealgate](https://sealgate.ai/comparison/mintmcp-vs-sealgate) [Golf (GolfMCP) vs Sealgate](https://sealgate.ai/comparison/golf-vs-sealgate) [Runlayer vs Sealgate](https://sealgate.ai/comparison/runlayer-vs-sealgate) [Rippling vs Sealgate](https://sealgate.ai/comparison/rippling-vs-sealgate) [Portkey vs Sealgate](https://sealgate.ai/comparison/portkey-vs-sealgate) [Unipile vs Sealgate](https://sealgate.ai/comparison/unipile-vs-sealgate) [Zapier MCP vs Sealgate](https://sealgate.ai/comparison/zapier-mcp-vs-sealgate) [Composio vs Sealgate](https://sealgate.ai/comparison/composio-vs-sealgate) [Kong AI Gateway vs Sealgate](https://sealgate.ai/comparison/kong-ai-gateway-vs-sealgate) [Docker MCP Gateway vs Sealgate](https://sealgate.ai/comparison/docker-mcp-gateway-vs-sealgate) [Lasso Security vs Sealgate](https://sealgate.ai/comparison/lasso-security-vs-sealgate) [Obot vs Sealgate](https://sealgate.ai/comparison/obot-vs-sealgate) [MCP Manager vs Sealgate](https://sealgate.ai/comparison/mcp-manager-vs-sealgate) [PolicyLayer vs Sealgate](https://sealgate.ai/comparison/policylayer-vs-sealgate) [mcpgate vs Sealgate](https://sealgate.ai/comparison/mcpgate-vs-sealgate) [Peta vs Sealgate](https://sealgate.ai/comparison/peta-vs-sealgate) [Executor vs Sealgate](https://sealgate.ai/comparison/executor-vs-sealgate) [Arcade vs Sealgate](https://sealgate.ai/comparison/arcade-vs-sealgate) [Pipedream Connect MCP vs Sealgate](https://sealgate.ai/comparison/pipedream-vs-sealgate) [TrueFoundry vs Sealgate](https://sealgate.ai/comparison/truefoundry-vs-sealgate) [Traefik vs Sealgate](https://sealgate.ai/comparison/traefik-vs-sealgate) [StackOne vs Sealgate](https://sealgate.ai/comparison/stackone-vs-sealgate) [Workato Enterprise MCP vs Sealgate](https://sealgate.ai/comparison/workato-vs-sealgate) [Lunar MCPX vs Sealgate](https://sealgate.ai/comparison/lunar-mcpx-vs-sealgate) [Invariant MCP-Scan vs Sealgate](https://sealgate.ai/comparison/invariant-mcp-scan-vs-sealgate) [Bifrost vs Sealgate](https://sealgate.ai/comparison/bifrost-vs-sealgate) [Merge Agent Handler vs Sealgate](https://sealgate.ai/comparison/merge-agent-handler-vs-sealgate) [Microsoft MCP Gateway vs Sealgate](https://sealgate.ai/comparison/microsoft-mcp-gateway-vs-sealgate) [See all comparisons](https://sealgate.ai/comparison) ### Contact Us Sealgate (GPU-EVM LTD) 3rd Floor, 86-90 Paul Street London EC2A 4NE Email: hello@sealgate.ai ### Legal [Terms of Service](https://sealgate.ai/terms-of-service) [Privacy Policy](https://sealgate.ai/privacy-policy) [Subprocessors](https://sealgate.ai/subprocessors) [Data Processing Addendum](https://sealgate.ai/dpa) ### Quick Links [Home](https://sealgate.ai/) [Product](https://sealgate.ai/product) [Pricing](https://sealgate.ai/pricing) [Self-hosting](https://sealgate.ai/self-hosting) [Security](https://sealgate.ai/security) [Comparison](https://sealgate.ai/comparison) [About](https://sealgate.ai/about) [Contact](https://sealgate.ai/contact) [Brand](https://sealgate.ai/brand) [Press](https://sealgate.ai/press) [Docs](https://sealgate.ai/docs/) [Developer docs](https://sealgate.ai/docs/developers) [Guides](https://sealgate.ai/guides/) [Blog](https://sealgate.ai/blog/) ### Connect [Connect AI to messaging](https://sealgate.ai/connect) [WhatsApp](https://sealgate.ai/connect/whatsapp) [iMessage](https://sealgate.ai/connect/imessage) [Telegram](https://sealgate.ai/connect/telegram) [LinkedIn DMs](https://sealgate.ai/connect/linkedin) [Signal](https://sealgate.ai/connect/signal) [Instagram DMs](https://sealgate.ai/connect/instagram) [Messenger](https://sealgate.ai/connect/messenger) [X DMs](https://sealgate.ai/connect/x) [Discord DMs](https://sealgate.ai/connect/discord) [LINE](https://sealgate.ai/connect/line) [Beeper](https://sealgate.ai/beeper) ### Follow Us