# Amazon Bedrock AgentCore Code Interpreter vs E2B

> Amazon Bedrock AgentCore Code Interpreter scores 73.1 (BB) on agent readiness against E2B's 68.3 (B), and leads in 4 of 7 scored categories. E2B leads on schema & documentation, payments & pricing and maintenance & community. Both do sandbox code. Category scores, facts…

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- Updated: 2026-10-09

Amazon Bedrock AgentCore Code Interpreter scores 73.1 (BB) on agent readiness against E2B's 68.3 (B), and leads in 4 of 7 scored categories. E2B leads on schema & documentation, payments & pricing and maintenance & community. Both do sandbox code.

- Amazon Bedrock AgentCore Code Interpreter: grade BB, 73.1/100, rank #89 of 842. Markdown https://www.anchorterminal.com/tools/agentcore-code-interpreter.md · JSON https://www.anchorterminal.com/api/v1/tools/agentcore-code-interpreter.json
- E2B: grade B, 68.3/100, rank #207 of 842. Markdown https://www.anchorterminal.com/tools/e2b.md · JSON https://www.anchorterminal.com/api/v1/tools/e2b.json

## Which one, for what

### Amazon Bedrock AgentCore Code Interpreter (BB)

Good for: A team already on AWS that wants agent code to run under IAM, inside a VPC and beside S3 data, for sessions up to eight hours.

Ahead on:
- Reliability, 85 against 60
- Agent ergonomics, 75 against 65
- Security & auth, 87 against 62

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: No pause, resume or snapshot. Session files are removed when the session ends, and persistence needs a customer-owned S3 Files or EFS mount inside a VPC

### E2B (B)

Good for: Code interpreters and agent workspaces that pause and resume with memory, and teams that may want to self-host later.

Ahead on:
- Schema & documentation, 92 against 81
- Payments & pricing, 50 against 30
- Maintenance & community, 88 against 65

Also in its favour:
- Open source

Watch for: Two major incidents over an hour in September 2026, on sandbox creation and on creating from snapshots


## Score by category

| Category | Weight | Amazon Bedrock AgentCore Code Interpreter | E2B | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 85 | 60 | Amazon Bedrock AgentCore Code Interpreter +25 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 81 | 92 | E2B +11 |
| Agent ergonomics | 13% (16.2 this run) | 75 | 65 | Amazon Bedrock AgentCore Code Interpreter +10 |
| Security & auth | 14% (17.5 this run) | 87 | 62 | Amazon Bedrock AgentCore Code Interpreter +25 |
| Payments & pricing | 10% (12.5 this run) | 30 | 50 | E2B +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 65 | 88 | E2B +23 |
| Transparency & trust | 7% (8.8 this run) | 70 | 68 | Amazon Bedrock AgentCore Code Interpreter +2 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **73.1 · BB** | **68.3 · B** | |

## Facts side by side

| Fact | Amazon Bedrock AgentCore Code Interpreter | E2B |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amazon Web Services | E2B |
| Hosted endpoint | `https://bedrock-agentcore.{region}.amazonaws.com/code-interpreters/{id}/tools/invoke` | `https://api.e2b.app` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the AWS Service Terms. The AgentCore SDKs for Python and TypeScript and the AgentCore MCP server are Apache-2.0 | Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-07 | 2026-10-01 |
| Terms last updated | 2026-10-01 | 2024-12-04 |
| Privacy policy last updated | 2026-05-18 | 2024-04-08 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 776 stars, 335k npm/wk | 13k stars, 2.2M npm/wk, 1.4M PyPI/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Amazon Bedrock AgentCore Code Interpreter.** Each session runs in its own microVM with 2 vCPU, 8 GB and a 10 GB disk for up to eight hours, and IAM can scope access to one interpreter. Sessions cannot be paused or resumed, and an AWS account with IAM set-up is needed before a first call.

**E2B.** Firecracker microVM with its own kernel per sandbox. Two major incidents over an hour in September 2026, on sandbox creation and on creating from snapshots.

## Before you call either

### Amazon Bedrock AgentCore Code Interpreter

1. Start a session with `StartCodeInterpreterSession`, then pass its id in the `x-amzn-code-interpreter-session-id` header on every `InvokeCodeInterpreter` call
2. Set `sessionTimeoutSeconds` when starting. The default is 900 seconds and the maximum is eight hours, and the session ends itself at the timeout
3. Stop sessions when done. Billing runs per second while code is busy, and a session left open counts against the 1,000 concurrent-session quota
4. Use `startCommandExecution`, `getTask` and `stopTask` for work longer than the 15-minute synchronous request limit
5. Retry `ThrottlingException` (429) and `InternalServerException` (500) with exponential backoff, and treat `ServiceQuotaExceededException`, returned as HTTP 402, as a quota to raise

### E2B

1. Set a timeout when you create a sandbox. The default is 5 minutes
2. Pause rather than kill when you'll come back. Resume takes about a second and nothing is billed while paused
3. Use `Secret.fill` in network transforms instead of passing API keys into the sandbox environment
4. Pace sandbox creation. Hobby allows 1 a second and 20 running at once
5. Move to the v2 sandbox endpoints. SDK 2.51.0 and later use them by default

## Questions

### Which is better for AI agents, Amazon Bedrock AgentCore Code Interpreter or E2B?

Amazon Bedrock AgentCore Code Interpreter scores 73.1 (BB) on agent readiness against E2B's 68.3 (B), and leads in 4 of 7 scored categories. E2B leads on schema & documentation, payments & pricing and maintenance & community.

### Do Amazon Bedrock AgentCore Code Interpreter and E2B need an API key?

Both need an API key.

### Can an agent call Amazon Bedrock AgentCore Code Interpreter and E2B without installing anything?

Yes. Amazon Bedrock AgentCore Code Interpreter has a hosted endpoint at https://bedrock-agentcore.{region}.amazonaws.com/code-interpreters/{id}/tools/invoke and E2B at https://api.e2b.app.

### Are Amazon Bedrock AgentCore Code Interpreter and E2B open source?

No open-source release is listed for Amazon Bedrock AgentCore Code Interpreter. E2B is open source (Apache-2.0).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-e2b.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agentcore-code-interpreter-vs-e2b.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "agentcore-code-interpreter", "b": "e2b"}`. From a terminal: `anchor compare agentcore-code-interpreter e2b`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agentcore-code-interpreter.json and https://www.anchorterminal.com/api/v1/tools/e2b.json

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