SDKs for every stack.

Official libraries that handle auth, retries, idempotency, and webhook verification so you can focus on your product. Typed against the same OpenAPI spec the docs render from.

Skip the boilerplate. Stellus SDKs wrap the REST API with typed clients, automatic retries, idempotency-aware backoff, and signature verification for webhooks. Every SDK ships from the same OpenAPI spec, so behavior is consistent across languages.

01Recommended

TypeScript / JavaScript

npm install @stellus/sdk

transfer.ts

typescriptCreate a transfer

import { Stellus } from "@stellus/sdk";

const stellus = new Stellus({
  apiKey: process.env.STELLUS_KEY!,
  version: "2026-06-01",
});

const transfer = await stellus.transfers.create({
  asset:  "ozUSD",
  amount: "50000.00",
  from:   "acct_meridian_treasury",
  to:     "acct_pareto_settlement",
  network: "base",
  idempotencyKey: crypto.randomUUID(),
});

// transfer.status === "settled" · 0.42s

What you get

Fully typed against the current API version
Isomorphic — works in Node, Edge, and Bun
Automatic retries with idempotency-aware backoff

02Beta

Python

pip install stellus

transfer.py

pythonCreate a transfer

import os
from stellus import Stellus

stellus = Stellus(
    api_key=os.environ["STELLUS_KEY"],
    version="2026-06-01",
)

transfer = stellus.transfers.create(
    asset="ozUSD",
    amount="50000.00",
    from_="acct_meridian_treasury",
    to="acct_pareto_settlement",
    network="base",
    idempotency_key=str(uuid.uuid4()),
)

# transfer.status == "settled"  ·  0.42s

What you get

3.10+ · async and sync clients available
Type hints across the full surface
Pluggable HTTP client (httpx by default)

03Beta

Go

go get github.com/stellus/stellus-go

transfer.go

goCreate a transfer

import (
    "context"
    "github.com/stellus/stellus-go"
)

client := stellus.NewClient(stellus.Options{
    APIKey:  os.Getenv("STELLUS_KEY"),
    Version: "2026-06-01",
})

transfer, err := client.Transfers.Create(ctx, &stellus.TransferParams{
    Asset:          "ozUSD",
    Amount:         "50000.00",
    From:           "acct_meridian_treasury",
    To:             "acct_pareto_settlement",
    Network:        "base",
    IdempotencyKey: uuid.NewString(),
})

// transfer.Status == stellus.StatusSettled  ·  0.42s

What you get

Context-first, canonical struct shapes
Built-in retry/backoff with jitter
Zero external dependencies beyond stdlib + uuid

✦ Webhook verification

One line to trust the payload.

Every SDK ships the same signature verifier — HMAC-SHA256 over the raw body with a 5-minute nonce window. Reject anything that doesn't verify; the raw body is parseable only after that check passes.

verify.ts

typescriptSig check

import { verifyStellusSignature } from "@stellus/sdk";

if (!verifyStellusSignature(body, signatureHeader, secret)) {
  throw new Error("invalid signature");
}
// body is safe to parse and act on

Roadmap and requests

Ruby and Java are on the roadmap; Rust and Swift are on the list, prioritized by demand. If you're building on one and don't see it, write to us — we take language requests seriously and prioritize by real integrations, not stars.

Browse the libraries.

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