"Runtime" is ambiguous, so the request is best read as a general search for runtimes. Runtime Cloud 1 is the top match for running agent code in sandboxes, while Bun 9, Tokio 7 and Restate 8 are established runtimes for programming languages and backend applications.
A question back: Which kind of runtime do you need: a sandbox to run agent code, a programming language runtime, a backend durable-execution runtime, or a machine learning inference engine?
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Tokiotokio.rswebsite read, tools not yet checked
An asynchronous runtime for writing reliable network applications in Rust, providing async I/O, networking, scheduling and timers 7.
+2 community tools built for it
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Sources
- 1Agent sandboxes, up to 6× cheaper · Runtimewithruntime.com · read 2026-10-29
- 5ONNX Runtime | Homeonnxruntime.ai · read 2026-10-29
- 7Tokio - An asynchronous Rust runtimetokio.rs · read 2026-10-29
- 8Restate | The Durable Runtime for your Agents and Backendsrestate.dev · read 2026-10-30
- 9Bun — A fast all-in-one JavaScript runtimebun.com · read 2026-10-29
For agents: the 10 actions behind this answer
runtime · Runtime Cloud verified and signed
readNodeV1RuntimeClass · Kubernetes verified and signed
read the specified RuntimeClass
arize-trace · arize-trace verified and signed
Downloads, exports, and inspects existing Arize traces and spans to understand what an LLM app is doing or debug runtime issues. Covers exporting traces by ID, spans by ID, sessions by ID, and root-cause investigation using the ax CLI. Use when the user wants to look at existing trace data, see what
herdr-throwaway-repro · herdr-throwaway-repro verified and signed
Create and control a disposable named Herdr session from inside an existing Herdr session. Use for isolated Herdr runtime, pane, terminal, process, API, persistence, or agent reproductions that should be driven through the CLI/API without touching the default session.
learning · onnxruntime verified and signed
runtime · nemo-relay verified and signed
· Tokio Axum website read, tools not yet checked
Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.
· Tokio website read, tools not yet checked
Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.
· Restate website read, tools not yet checked
Restate is a low-latency application runtime with durable execution, keyed state, queues, RPC, timers, flow control, and operational control in one binary.
implementing-jsc-classes-cpp · implementing-jsc-classes-cpp verified and signed
Implements JavaScript classes in C++ using JavaScriptCore. Use when creating new JS classes with C++ bindings, prototypes, or constructors.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.