SDKs

SINT ships first-party SDKs in four languages. All SDKs wrap the same HTTP/SSE gateway API and cover the full protocol surface.

TypeScript

@sint/sdk — primary SDK, full coverage, used in Console and Avatars.

Python

sint-sdk — Python 3.10+, type-hinted, async-first.

Go

github.com/sint-ai/sint-sdk-go — idiomatic Go, context-aware.

Rust

sint-sdk on crates.io — async, serde-friendly, no unsafe.

Coverage matrix

Feature	TypeScript	Python	Go	Rust
Token issuance	✓	✓	✓	✓
Token delegation	✓	✓	✓	✓
Token revocation	✓	✓	✓	✓
Intercept	✓	✓	✓	✓
Batch intercept	✓	✓	✓	—
Approval wait (SSE)	✓	✓	✓	✓
Approval resolve	✓	✓	✓	✓
Ledger query	✓	✓	✓	✓
Ledger verify	✓	✓	✓	✓
CSML read	✓	✓	—	—
LangChain integration	✓	✓	—	—
OpenClaw integration	✓	—	—	—

Common patterns

Async-safe client

All SDKs are thread/goroutine/async-safe. Create one client per process, share across agents.

Token rotation

Tokens expire. SDKs include a TokenManager that handles automatic rotation:

const tokenMgr = client.tokenManager({
  refreshBefore: 60_000,  // refresh 60s before expiry
  scope: { resources: ["..."], actions: ["..."] }
});

await tokenMgr.ensureValid();
const token = tokenMgr.current();

Approval waiting

The approvals.await() helper wraps the SSE endpoint:

const approval = await client.approvals.await(approvalId, {
  timeout: 30000,
  onUpdate: (event) => console.log("Status:", event.status)
});

if (approval.resolved === "approved") {
  // Proceed
}

Stability

TypeScript SDK: stable. Semantic versioning within the monorepo’s version.
Python, Go, Rust SDKs: beta. May have breaking changes until v1.0.
Gateway API: versioned at /v1/. Breaking changes increment the major version and are announced in the changelog.

Contributing

SDK contributions welcome. See contributing.

Developer quickstart API reference

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TypeScript

Python

Go

Rust

Coverage matrix

Common patterns

Async-safe client

Token rotation

Approval waiting

Stability

Contributing

TypeScript

Python

Go

Rust

​Coverage matrix

​Common patterns

​Async-safe client

​Token rotation

​Approval waiting

​Stability

​Contributing

Coverage matrix

Common patterns

Async-safe client

Token rotation

Approval waiting

Stability

Contributing