---
title: "MCP stdio"
canonical: "https://canmyagentuse.com/atlas/features/mcp-transport-stdio"
contentKind: "feature"
locale: "en"
description: "Local subprocess transport."
llmSummary: "Local subprocess transport."
publishedAt: null
updatedAt: "2026-08-28T00:00:00.000Z"
verifiedAt: "2026-08-28"
tags: ["evidence-atlas", "research"]
---

# MCP stdio

Local subprocess transport.

Research cutoff: 2026-08-28. Documentation and registry evidence are not runtime certification. Unknown means the package did not establish a defensible claim; it does not mean unsupported.

- Feature ID: mcp.transport.stdio
- Group: MCP
- Role: both
- Testability: deterministic
- Supported: 30
- Partial: 1
- Explicit unsupported: 4
- Unknown: 58

| Exact surface | Vendor | Type | Status | Conditions / notes | Sources |
| --- | --- | --- | --- | --- | --- |
| [Agoragentic](/atlas/surfaces/agoragentic-acp-agent) | Agoragentic | acp-agent | Unknown | — | — |
| [Aider CLI](/atlas/surfaces/aider-cli) | Aider | cli | Unknown | — | — |
| [Qwen Code CLI](/atlas/surfaces/qwen-code-cli) | Alibaba / Qwen | cli | Unknown | — | — |
| [Amp ACP wrapper](/atlas/surfaces/amp-acp-agent) | Amp | acp-wrapper | Unknown | — | — |
| [Claude Agent ACP wrapper](/atlas/surfaces/claude-agent-acp-wrapper) | Anthropic | acp-adapter | Unknown | — | — |
| [Claude Code CLI / local host](/atlas/surfaces/claude-code-cli) | Anthropic | cli | Supported | — | [S-010](https://code.claude.com/docs/en/mcp) |
| [Auggie CLI](/atlas/surfaces/auggie-cli) | Augment Code | cli | Unknown | — | — |
| [Augment IDE agent](/atlas/surfaces/augment-ide) | Augment Code | ide-extension | Unknown | — | — |
| [Autohand Code](/atlas/surfaces/autohand-acp-agent) | Autohand | acp-agent | Unknown | — | — |
| [Kiro CLI 3](/atlas/surfaces/kiro-cli) | AWS / Kiro | cli | Supported | — | [S-080](https://kiro.dev/docs/skills/), [S-081](https://kiro.dev/docs/hooks/), [S-082](https://kiro.dev/docs/powers/create/), [S-083](https://kiro.dev/docs/cli/v3/) |
| [Kiro IDE](/atlas/surfaces/kiro-ide) | AWS / Kiro | ide-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-080](https://kiro.dev/docs/skills/), [S-081](https://kiro.dev/docs/hooks/), [S-082](https://kiro.dev/docs/powers/create/) |
| [Kiro Mobile](/atlas/surfaces/kiro-mobile) | AWS / Kiro | mobile-agent | Unknown | — | — |
| [Kiro Web](/atlas/surfaces/kiro-web) | AWS / Kiro | web-agent | Unknown | — | — |
| [goose ACP-agent provider host](/atlas/surfaces/goose-acp-host) | Block / goose | acp-client | Unknown | — | — |
| [goose CLI](/atlas/surfaces/goose-cli) | Block / goose | cli | Unknown | — | — |
| [goose desktop](/atlas/surfaces/goose-desktop) | Block / goose | desktop | Unknown | — | — |
| [Cline CLI](/atlas/surfaces/cline-cli) | Cline | cli | Unknown | — | — |
| [Cline VS Code extension](/atlas/surfaces/cline-vscode) | Cline | ide-extension | Supported | — | [S-091](https://docs.cline.bot/tools-reference/all-cline-tools), [S-093](https://docs.cline.bot/customization/skills) |
| [Cascade desktop agent](/atlas/surfaces/cascade-desktop) | Cognition | desktop-agent | Supported | — | [S-120](https://docs.devin.ai/desktop/cascade/skills), [S-121](https://docs.devin.ai/desktop/cascade/mcp), [S-122](https://docs.devin.ai/desktop/cascade/hooks), [S-123](https://docs.devin.ai/desktop/cascade/agents-md) |
| [Devin CLI](/atlas/surfaces/devin-cli) | Cognition | cli | Unknown | — | — |
| [Devin Cloud](/atlas/surfaces/devin-cloud) | Cognition | cloud-agent | Unknown | — | — |
| [Devin Local](/atlas/surfaces/devin-local) | Cognition | local-agent | Unknown | — | — |
| [Nova](/atlas/surfaces/compass-ai-acp-agent) | Compass AI / Nova | acp-agent | Unknown | — | — |
| [Continue Agent mode](/atlas/surfaces/continue-agent-mode) | Continue | ide-agent-mode | Supported | — | [S-110](https://docs.continue.dev/customize/deep-dives/mcp), [S-111](https://docs.continue.dev/ide-extensions/agent/how-it-works) |
| [Continue Chat mode](/atlas/surfaces/continue-chat-mode) | Continue | ide-chat-mode | Unsupported | Continue explicitly documents MCP as Agent-mode-only. | [S-110](https://docs.continue.dev/customize/deep-dives/mcp), [S-111](https://docs.continue.dev/ide-extensions/agent/how-it-works) |
| [Continue Plan mode](/atlas/surfaces/continue-plan-mode) | Continue | ide-plan-mode | Unsupported | Continue explicitly documents MCP as Agent-mode-only. | [S-110](https://docs.continue.dev/customize/deep-dives/mcp), [S-111](https://docs.continue.dev/ide-extensions/agent/how-it-works) |
| [Corust Agent](/atlas/surfaces/corust-acp-agent) | Corust | acp-agent | Unknown | — | — |
| [crow-cli](/atlas/surfaces/crow-acp-agent) | crow-cli | acp-agent | Unknown | — | — |
| [Cursor CLI agent](/atlas/surfaces/cursor-cli) | Cursor | cli | Supported | — | [S-031](https://cursor.com/docs/mcp) |
| [Cursor Cloud Agent](/atlas/surfaces/cursor-cloud-agent) | Cursor | cloud-agent | Supported | — | [S-035](https://cursor.com/docs/cloud-agent) |
| [Cursor editor agent](/atlas/surfaces/cursor-editor) | Cursor | native-editor-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-031](https://cursor.com/docs/mcp) |
| [DimCode](/atlas/surfaces/dimcode-acp-agent) | DimCode | acp-agent | Unknown | — | — |
| [Dirac](/atlas/surfaces/dirac-acp-agent) | Dirac | acp-agent | Unknown | — | — |
| [Factory Droid CLI](/atlas/surfaces/factory-droid-cli) | Factory AI | cli | Unknown | — | — |
| [Factory Droid Exec](/atlas/surfaces/factory-droid-headless) | Factory AI | headless-agent | Unknown | — | — |
| [fast-agent](/atlas/surfaces/fast-agent-acp-agent) | fast-agent | acp-agent | Unknown | — | — |
| [GitHub Copilot CLI](/atlas/surfaces/copilot-cli) | GitHub | cli | Unknown | — | — |
| [GitHub Copilot cloud agent](/atlas/surfaces/copilot-cloud-agent) | GitHub | cloud-agent | Supported | Repository-configured local MCP server command runs in the hosted task environment. | [S-042](https://docs.github.com/en/enterprise-cloud@latest/copilot/concepts/agents/cloud-agent/mcp-and-cloud-agent) |
| [GitHub Copilot code review](/atlas/surfaces/copilot-code-review) | GitHub | cloud-code-review | Unknown | — | — |
| [GitHub Copilot in VS Code](/atlas/surfaces/copilot-vscode) | GitHub | ide-extension | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-040](https://code.visualstudio.com/updates/v1_133), [S-041](https://docs.github.com/copilot/customizing-copilot/using-model-context-protocol/extending-copilot-chat-with-mcp), [S-045](https://docs.github.com/copilot/concepts/agents/enterprise-management) |
| [Gemini CLI](/atlas/surfaces/gemini-cli) | Google | cli | Supported | — | [S-050](https://geminicli.com/docs/tools/mcp-server/) |
| [Google Antigravity ACP agent](/atlas/surfaces/google-antigravity) | Google | acp-agent | Unknown | — | — |
| [Harn](/atlas/surfaces/harn-acp-agent) | Harn | acp-agent | Unknown | — | — |
| [JetBrains ACP host](/atlas/surfaces/jetbrains-acp-host) | JetBrains | acp-client | Unknown | — | — |
| [JetBrains native AI Assistant](/atlas/surfaces/jetbrains-native-agent) | JetBrains | ide-agent | Supported | — | [S-070](https://www.jetbrains.com/help/ai-assistant/mcp.html) |
| [Junie ACP agent](/atlas/surfaces/junie-acp-agent) | JetBrains | acp-agent | Unknown | — | — |
| [Kilo CLI](/atlas/surfaces/kilo-cli) | Kilo | cli | Unknown | — | — |
| [Kilo IDE extension](/atlas/surfaces/kilo-ide) | Kilo | ide-extension | Unknown | — | — |
| [DeepAgents](/atlas/surfaces/deepagents-acp-agent) | LangChain / DeepAgents | acp-agent | Unknown | — | — |
| [VS Code agent/plugin host](/atlas/surfaces/vscode-agent-host) | Microsoft / Visual Studio Code | ide-host | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-040](https://code.visualstudio.com/updates/v1_133), [S-041](https://docs.github.com/copilot/customizing-copilot/using-model-context-protocol/extending-copilot-chat-with-mcp) |
| [Minion Code](/atlas/surfaces/minion-acp-agent) | Minion Code | acp-agent | Unknown | — | — |
| [Mistral Vibe CLI](/atlas/surfaces/mistral-vibe-cli) | Mistral AI | cli | Supported | — | [S-001](https://agentclientprotocol.com/get-started/registry), [S-190](https://docs.mistral.ai/vibe/code/cli/mcp-servers), [S-191](https://docs.mistral.ai/vibe/code/) |
| [Kimi CLI ACP registry entry](/atlas/surfaces/kimi-cli-legacy-acp) | Moonshot AI | acp-agent | Unknown | — | — |
| [Kimi Code CLI](/atlas/surfaces/kimi-code-cli) | Moonshot AI | cli | Supported | — | [S-181](https://www.kimi.com/code/docs/en/kimi-code-cli/customization/mcp.html), [S-182](https://www.kimi.com/code/docs/en/kimi-code-cli/release-notes/changelog.html), [S-183](https://www.kimi.com/code/docs/en/kimi-code-cli/customization/skills.html), [S-184](https://www.kimi.com/code/docs/en/kimi-code-cli/customization/subagents.html) |
| [NanoClaw agent](/atlas/surfaces/nanoclaw-agent) | NanoClaw | messaging-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-280](https://github.com/qwibitai/nanoclaw) |
| [Hermes ACP agent](/atlas/surfaces/hermes-acp-agent) | Nous Research / Hermes | acp-agent | Unknown | — | — |
| [Hermes CLI/desktop/messaging core](/atlas/surfaces/hermes-core) | Nous Research / Hermes | multi-surface-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients) |
| [ChatGPT desktop / Codex host](/atlas/surfaces/chatgpt-desktop) | OpenAI | desktop | Supported | — | [S-021](https://learn.chatgpt.com/docs/extend/mcp) |
| [ChatGPT mobile](/atlas/surfaces/chatgpt-mobile) | OpenAI | mobile | Unsupported | — | [S-021](https://learn.chatgpt.com/docs/extend/mcp) |
| [ChatGPT web](/atlas/surfaces/chatgpt-web) | OpenAI | web | Unsupported | ChatGPT web does not read local Codex MCP configuration or start local stdio servers. | [S-021](https://learn.chatgpt.com/docs/extend/mcp) |
| [Codex ACP adapter](/atlas/surfaces/codex-acp-adapter) | OpenAI | acp-adapter | Unknown | — | — |
| [Codex CLI](/atlas/surfaces/codex-cli) | OpenAI | cli | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients), [S-021](https://learn.chatgpt.com/docs/extend/mcp) |
| [Codex IDE extension](/atlas/surfaces/codex-ide) | OpenAI | ide-extension | Supported | — | [S-021](https://learn.chatgpt.com/docs/extend/mcp) |
| [OpenClaw ACP host](/atlas/surfaces/openclaw-acp-host) | OpenClaw | acp-client | Unknown | — | — |
| [OpenClaw core agent](/atlas/surfaces/openclaw-core) | OpenClaw | multi-surface-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients) |
| [OpenClaw MCP server](/atlas/surfaces/openclaw-mcp-server) | OpenClaw | mcp-server | Supported | — | [S-161](https://docs.openclaw.ai/cli/mcp) |
| [OpenCode CLI/TUI](/atlas/surfaces/opencode-cli) | OpenCode | cli | Supported | — | [S-100](https://opencode.ai/docs/), [S-101](https://opencode.ai/docs/mcp-servers/), [S-102](https://opencode.ai/docs/skills/), [S-104](https://opencode.ai/docs/agents/), [S-105](https://opencode.ai/docs/plugins/) |
| [OpenCode desktop](/atlas/surfaces/opencode-desktop) | OpenCode | desktop | Supported | — | [S-100](https://opencode.ai/docs/), [S-101](https://opencode.ai/docs/mcp-servers/), [S-102](https://opencode.ai/docs/skills/), [S-104](https://opencode.ai/docs/agents/), [S-105](https://opencode.ai/docs/plugins/) |
| [OpenCode IDE extension](/atlas/surfaces/opencode-ide) | OpenCode | ide-extension | Supported | — | [S-100](https://opencode.ai/docs/), [S-101](https://opencode.ai/docs/mcp-servers/), [S-102](https://opencode.ai/docs/skills/), [S-104](https://opencode.ai/docs/agents/), [S-105](https://opencode.ai/docs/plugins/) |
| [OpenHands ACP agent](/atlas/surfaces/openhands-acp-agent) | OpenHands | acp-agent | Unknown | — | — |
| [OpenHands Agent Canvas cloud backend](/atlas/surfaces/openhands-canvas-cloud) | OpenHands | cloud-agent-host | Unknown | — | — |
| [OpenHands Agent Canvas local backend](/atlas/surfaces/openhands-canvas-local) | OpenHands | web-desktop-host | Unknown | — | — |
| [OpenHands CLI](/atlas/surfaces/openhands-cli) | OpenHands | cli | Unknown | — | — |
| [OpenWork Desktop](/atlas/surfaces/openwork-desktop) | OpenWork | desktop-agent | Supported | The documented openwork-ui-mcp companion runs as a stdio MCP server and bridges to the local desktop app. | [S-313](https://github.com/different-ai/openwork/blob/dev/docs/mcp-ui-control-profile.md) |
| [pi ACP](/atlas/surfaces/pi-acp-agent) | pi | acp-adapter | Unknown | — | — |
| [Poolside](/atlas/surfaces/poolside-acp-agent) | Poolside | acp-agent | Unknown | — | — |
| [Qoder CLI](/atlas/surfaces/qoder-cli) | Qoder | cli | Unknown | — | — |
| [Replit Agent](/atlas/surfaces/replit-agent) | Replit | cloud-ide-agent | Unknown | — | — |
| [Replit MCP Server](/atlas/surfaces/replit-mcp-server) | Replit | mcp-server | Unknown | — | — |
| [Roo Code VS Code extension](/atlas/surfaces/roo-code-vscode) | Roo Code | ide-extension | Unknown | — | — |
| [siGit Code](/atlas/surfaces/sigit-acp-agent) | siGit Code | acp-agent | Unknown | — | — |
| [Cortex Code](/atlas/surfaces/snowflake-acp-agent) | Snowflake | acp-agent | Unknown | — | — |
| [Stakpak](/atlas/surfaces/stakpak-acp-agent) | Stakpak | acp-agent | Unknown | — | — |
| [Codebuddy Code](/atlas/surfaces/codebuddy-acp-agent) | Tencent Cloud / CodeBuddy | acp-agent | Unknown | — | — |
| [VT Code](/atlas/surfaces/vt-code-acp-agent) | VT Code | acp-agent | Unknown | — | — |
| [Warp Agent CLI / Oz CLI](/atlas/surfaces/warp-agent-cli) | Warp | cli | Supported | Oz CLI accepts command-and-args MCP configurations and spawns those local servers for a run. | [S-323](https://docs.warp.dev/reference/cli/mcp-servers) |
| [Warp Cloud Agent](/atlas/surfaces/warp-cloud-agent) | Warp | cloud-agent | Partial | Cloud MCP configuration is passed by agent config/shared UUID; local-process semantics depend on the cloud environment. | [S-262](https://docs.warp.dev/guides/external-tools/using-mcp-servers-with-warp/) |
| [Warp local Agent](/atlas/surfaces/warp-local-agent) | Warp | desktop-agent | Supported | — | [S-262](https://docs.warp.dev/guides/external-tools/using-mcp-servers-with-warp/) |
| [Grok Bot cloud](/atlas/surfaces/grok-bot-cloud) | xAI | cloud-agent | Supported | Transport listed by the Agent Plugins compatible-client page. | [S-002](https://agent-plugins.org/compatible-clients) |
| [Grok Build CLI/TUI](/atlas/surfaces/grok-build-cli) | xAI | cli | Unknown | — | — |
| [GLM Agent](/atlas/surfaces/zai-acp-agent) | Z.AI / GLM Agent | acp-agent | Unknown | — | — |
| [Zed external-agent ACP host](/atlas/surfaces/zed-acp-host) | Zed Industries | acp-client | Unknown | — | — |
| [Zed native Agent](/atlas/surfaces/zed-native-agent) | Zed Industries | native-editor-agent | Unknown | — | — |

[HTML](/atlas/features/mcp-transport-stdio) · [JSON](/api/v1/atlas/features/mcp-transport-stdio.json)