paperclip-sdk 0.4.1

Public Python SDK for calling remote functions, with sync and async clients.

paperclip-sdk

Python SDK for calling server-hosted Paperclip tools from scripts, workers, web apps, and async services.

Use it when you want to keep business logic, pricing rules, private workflows, or customer-specific functionality on the server while calling it from Python through a small client.

Install

poetry add paperclip-sdk

or

pip install paperclip-sdk

Configure authentication

export LEASEKEY_API_KEY="your-api-key"

Quickstart

Sync

from paperclip_sdk import Paperclip

with Paperclip() as paperclip:
    result = paperclip.tools.core.hello_world(name="Ada")
    print(result)

Async

import asyncio

from paperclip_sdk import AsyncPaperclip


async def main() -> None:
    async with AsyncPaperclip() as paperclip:
        result = await paperclip.tools.core.hello_world(name="Ada")
        print(result)


asyncio.run(main())

Real-world examples

The tool names below are illustrative. Replace them with the tools your Paperclip server exposes.

Keep pricing logic on the server

from decimal import Decimal

from paperclip_sdk import Paperclip


def quote_total(customer_id: str, sku: str, quantity: int) -> Decimal:
    with Paperclip() as paperclip:
        result = paperclip.tools.pricing.compute_quote(
            customer_id=customer_id,
            sku=sku,
            quantity=quantity,
        )

    return Decimal(result["total"])

Use it inside an async API

from fastapi import FastAPI

from paperclip_sdk import AsyncPaperclip

app = FastAPI()


@app.post("/tickets/{ticket_id}/summarize")
async def summarize_ticket(ticket_id: str) -> dict:
    async with AsyncPaperclip() as paperclip:
        return await paperclip.tools.support.summarize_ticket(
            ticket_id=ticket_id,
        )

Build a remote plugin system

from paperclip_sdk import Paperclip

with Paperclip() as paperclip:
    result = paperclip.tools.plugins.transform_payload(
        payload={
            "source": "stripe",
            "event": "invoice.paid",
        }
    )
    print(result)

Reuse a tool handle

from paperclip_sdk import Paperclip

with Paperclip() as paperclip:
    enrich_contact = paperclip.tools.crm.enrich_contact

    print(enrich_contact(email="[e-mail]"))
    print(enrich_contact(email="[e-mail]"))

Reuse an async tool handle

import asyncio

from paperclip_sdk import AsyncPaperclip


async def main() -> None:
    async with AsyncPaperclip() as paperclip:
        summarize = paperclip.tools.support.summarize_ticket

        print(await summarize(ticket_id="T-100"))
        print(await summarize(ticket_id="T-101"))


asyncio.run(main())

Notes

• Tools are available under paperclip.tools.<namespace>.<name>(...)
• The default base URL is https://leasekey.org, so passing base_url is optional
• The SDK automatically sends User-Agent: paperclip-sdk/<version>
• The SDK also sends X-Leasekey-SDK-Version: <version>
• Built-in retry behavior covers retryable transport failures and these HTTP statuses: 408, 425, 429, 502, 503, 504