[ SHORT ANSWER ]
E2B is the better fit for ephemeral code execution — an agent writing and running a snippet, analysing data, or testing output in a disposable sandbox that starts in milliseconds. Choose 1Claw Cloud Runtimes when the agent is long-lived, needs credentials injected under policy, and should be reachable at a stable HTTPS endpoint. Runtimes require Pro; there is no free runtime allowance.
The categories are adjacent but not the same. E2B optimises for cold-start latency and disposability. 1Claw optimises for a persistent agent with an identity: secrets resolved from the vault at start, Execution Intents for outbound calls so credentials stay server-side, idle auto-start, and a hosted slug under run.1claw.co with inbound auth.
Tier note: the 1Claw capability compared here requires Pro ($29/mo). See pricing.
[ COMPARISON ]
1Claw vs E2B
Capability by capability. A dash means partial or qualified support — read the note.
[ WHEN TO USE ]
Which one is right for you
Most of these are not either/or. Where the competitor is the better answer, we say so.
Use E2B when
- The workload is short-lived code execution and cold start dominates.
- You want a disposable sandbox per request with no persistent identity.
- You are building a code interpreter and need that specific shape.
Use 1Claw when
- The agent runs continuously and needs a stable address.
- The agent needs credentials, and you want them scoped and audited.
- You want outbound calls made server-side so the runtime never holds keys.
[ MIGRATION ]
Moving over in three steps
Most teams keep E2B for what it is good at and add 1Claw for the agent layer.
- 1Keep E2B for disposable code execution if that is part of your product.
- 2Create a 1Claw runtime for the long-lived agent and attach a vault policy.
- 3Move outbound API calls to Execution Intents bindings so no credential lands in the container.
[ FAQ ]
Common questions
Is there a free 1Claw runtime tier?
No. Cloud Runtimes start at Pro ($29/mo) with 3 runtimes and 100 pool hours; Team includes 10 runtimes and 500 hours. E2B's free tier is genuinely more accessible for experimentation.
Can I run both?
Yes — a persistent 1Claw agent that spawns E2B sandboxes for untrusted code is a reasonable architecture.
How are secrets delivered to a 1Claw runtime?
Resolved from the vault under the agent's policy at start, with a sidecar mediating intents, secrets, and execution. Execution Intents let the agent make outbound calls without the credential entering the container.
[ RELATED ]
Other comparisons
[ FREE TIER ] 3 vaults · 50 secrets · 2 agents · 100 signatures/mo
Give agents access, not copies
Store the credential once, scope it per agent, and let the agent act without ever holding it.