Sovereign Code Execution

205×

Faster Cold Start

SHA-256

Execution Receipts

$0.001

Per Execution

Why Synapse?

Drop-in E2B Replacement

Change one import line. Your LangChain, CrewAI, and OpenAI agents work instantly. Full API compatibility with e2b_code_interpreter.

205× Faster

Wasm-native isolation eliminates Docker cold starts. Sub-millisecond execution where E2B takes 200ms+.

Sovereign by Default

Every execution produces a SHA-256 receipt chain. Your code never leaves your infrastructure. EU/CA data residency.

Self-Hosted

Run on your own hardware. No vendor lock-in. Single Rust binary. No Kubernetes required.

Quickstart

pip install synapserun

from synapse import Cell

cell = Cell()
result = cell.run("print('Hello from Synapse!')")
print(result.stdout)     # Hello from Synapse!
print(result.receipt)    # SHA-256 execution receipt
cell.kill()

Or in TypeScript:

import { Cell } from '@runsynapse/sdk';

const cell = await Cell.create({ apiKey: process.env.SYNAPSE_API_KEY });
const result = await cell.run("print('Hello from Synapse!')");
console.log(result.stdout); // Hello from Synapse!
await cell.kill();

Quickstart Guide Create your first sandbox in 5 minutes.

Migrating from E2B Switch in under 10 minutes. One import change.

API Reference Full REST API and SDK documentation.

Agent Integrations LangChain, CrewAI, OpenAI, Claude, and more.