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withruntime/runtime
Sandboxes for AI agents: TypeScript, Python, Go, Java and Ruby SDKs, the runtime CLI, an MCP server, and…
View on GitHub ↗Link checked 2026-11-12 · HTTP 200 · opens the vendor's own site
Install & config
Remote endpoint (mcpServers - Claude Desktop / Cursor / Windsurf)
{
"mcpServers": {
"withruntime-runtime": {
"url": "https://api.withruntime.com/mcp"
}
}
}Paste this into the mcpServers config of Claude Desktop or Cursor. The endpoint comes from public evidence; we do not install or host it. Official Registry record: this endpoint lists the request header Authorization (Optional: Bearer <key> from https://withruntime.com/account/keys. Without it the client signs in through the browser (OAuth).) but does not mark it required. Whether it works anonymously is for the project docs to say.
VS Code (.vscode/mcp.json - the key is servers, remote needs type: http)
{
"servers": {
"withruntime-runtime": {
"type": "http",
"url": "https://api.withruntime.com/mcp"
}
}
}VS Code differs from the other three: the top-level key is <code>servers</code> and a remote endpoint also needs <code>"type": "http"</code>. Paste into .vscode/mcp.json.
Claude Code (command line)
claude mcp add --transport http withruntime-runtime https://api.withruntime.com/mcp
Claude Code does not read a config file; add the server with this command.
Install command from the repository
claude mcp add --scope user runtime -- npx -y withruntime mcp
Parsed from the README we fetched on 2026-10-26; we have not executed it.
This is the install method the repository states, not an MCP client config, so no JSON is generated.
Key names differ by client: Clients & CLI
- Star count
- 2 ★ · withruntime/runtime · read from the GitHub search API · (checked 2026-11-13 20:00:50)
- Source
- read directly from its GitHub page · type: open-source project
- Harvest history
- first seen 2026-10-25 · last seen 2026-11-14 · seen 24× · listed by 3 sources
- Score
- score 303 · 2 ★ · 3 sources · repo
- Install
claude mcp add --scope user runtime -- npx -y withruntime mcp
FAQ (answers come from our records)
How do I install it?
The repository provides this install command:
claude mcp add --scope user runtime -- npx -y withruntime mcp. It comes from the repository itself; we cannot guarantee it runs as-is in your client.Who is it for?
We filed it under these tags: 开源项目. The tags come from the entry itself, not a taxonomy we imposed.
Who maintains it?
repository
withruntime/runtime；first catalogued 2026-10-25；last seen 2026-11-14。There is no official certification or quality rating here — we record sources and dates only.# Runtime
以下摘录自该仓库的 README（片段） · 在 GitHub 读完整 README →
The SDKs, CLI, MCP server and agent integrations for
Runtime: sandboxes for AI agents. Each sandbox is a
Firecracker microVM with its own Linux kernel, started from one call.
bash
npm install withruntime # TypeScript SDK, the runtime CLI and the MCP server
pip install withruntime # Python SDK, sync and async
ts
import { Sandbox } from "withruntime";
await using sbx = await Sandbox.create();
const result = await sbx.exec("python3 -c 'print(6 7)'");
console.log(result.exitCode, result.stdout);
python
from withruntime import Sandbox
with Sandbox.create() as sbx:
result = sbx.exec("python3 -c 'print(6 7)'")
print(result.exitcode, result.stdout)
The client reads RUNTIMEAPIKEY, or the connection npx withruntime login
saved on this machine. A new account starts on a free trial with no card. The
quickstart takes it from there.
## What is here
| Path | What it is |
| packages/cloud-sdk | The TypeScript SDK, the runtime CLI and the MCP server: withruntime on npm |
| sdks/python | The Python SDK: withruntime on PyPI |
| sdks/python/integrations/langchain-withruntime | LangChain and Deep Agents sandbox backend |
| sdks/go, sdks/java, sdks/ruby | The Go, Java and Ruby SDKs |
| integrations/openai-agents, pydantic-ai, google-adk, smolagents | OpenAI Agents SDK, Pydantic AI, Google ADK and smolagents integrations, each -withruntime on PyPI |
| integrations/claude-code, codex, cursor, gemini-cli, vscode, windsurf | Skills, rules and MCP settings for coding agents |
| packages/cloud-guide/docs | The guides served at withruntime.com/docs, which the SDK tests check samples against |
## Documentation
Start
TypeScript and Python
CLI and MCP
Frameworks, and moving from
E2B or
Daytona
Pricing
## How Runtime compares
Pages that answer what people ask when choosing a sandbox, each with the
providers' published rates and the date they were read:
Best sandbox for AI agents
Alternatives to E2B,
Daytona,
Modal and
Vercel Sandbox
E2B vs Daytona, and
every comparison
The agent sandbox price index:
every provider's rates, also as CSV and JSON
Sandbox cost calculator
and Runtime's pricing
## Tests
bun test in packages/cloud-sdk and python3 -m unittest discover -s tests
in sdks/python run here as they are. The suites that start Runtime's API
Runtime: sandboxes for AI agents. Each sandbox is a
Firecracker microVM with its own Linux kernel, started from one call.
bash
npm install withruntime # TypeScript SDK, the runtime CLI and the MCP server
pip install withruntime # Python SDK, sync and async
ts
import { Sandbox } from "withruntime";
await using sbx = await Sandbox.create();
const result = await sbx.exec("python3 -c 'print(6 7)'");
console.log(result.exitCode, result.stdout);
python
from withruntime import Sandbox
with Sandbox.create() as sbx:
result = sbx.exec("python3 -c 'print(6 7)'")
print(result.exitcode, result.stdout)
The client reads RUNTIMEAPIKEY, or the connection npx withruntime login
saved on this machine. A new account starts on a free trial with no card. The
quickstart takes it from there.
## What is here
| Path | What it is |
| packages/cloud-sdk | The TypeScript SDK, the runtime CLI and the MCP server: withruntime on npm |
| sdks/python | The Python SDK: withruntime on PyPI |
| sdks/python/integrations/langchain-withruntime | LangChain and Deep Agents sandbox backend |
| sdks/go, sdks/java, sdks/ruby | The Go, Java and Ruby SDKs |
| integrations/openai-agents, pydantic-ai, google-adk, smolagents | OpenAI Agents SDK, Pydantic AI, Google ADK and smolagents integrations, each -withruntime on PyPI |
| integrations/claude-code, codex, cursor, gemini-cli, vscode, windsurf | Skills, rules and MCP settings for coding agents |
| packages/cloud-guide/docs | The guides served at withruntime.com/docs, which the SDK tests check samples against |
## Documentation
Start
TypeScript and Python
CLI and MCP
Frameworks, and moving from
E2B or
Daytona
Pricing
## How Runtime compares
Pages that answer what people ask when choosing a sandbox, each with the
providers' published rates and the date they were read:
Best sandbox for AI agents
Alternatives to E2B,
Daytona,
Modal and
Vercel Sandbox
E2B vs Daytona, and
every comparison
The agent sandbox price index:
every provider's rates, also as CSV and JSON
Sandbox cost calculator
and Runtime's pricing
## Tests
bun test in packages/cloud-sdk and python3 -m unittest discover -s tests
in sdks/python run here as they are. The suites that start Runtime's API
Listed badge (optional)
Copy this line into the README if you want the listing mark. Optional, and it does not affect being listed.
[](https://anclum.com/en/s/withruntime-runtime/)
- Source
- github · https://github.com/withruntime/runtime
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- Listed by
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