A receipt for every AI action. One line.

Copypip install sebbi

Copyimport sebbi

@sebbi.receipt("refund-decision")
def decide_refund(order):
    return {"refund": True, "amount": 42}

decide_refund({"id": 7})
print(sebbi.last().url)   # https://sebbi.pro/r/...  anyone can check it

Copynpm install sebbi

Copyimport { receipt, last } from "sebbi";

const decideRefund = receipt("refund-decision", async (order) => {
  return { refund: true, amount: 42 };
});

await decideRefund({ id: 7 });
console.log((await last()).url);   // https://sebbi.pro/r/...

Copypip install sebbi

Copyfrom sebbi.integrations.langchain import SebbiCallbackHandler

agent.invoke({"input": "..."}, config={"callbacks": [SebbiCallbackHandler()]})
# every tool call and model answer gets a receipt

Copypip install "sebbi[otel]"

Copyfrom sebbi.integrations.otel import instrument

instrument()   # every agent and tool span you already trace gets a receipt
# the span carries sebbi.receipt.url into Datadog, Grafana, Langfuse...
# prove a trace later:  sebbi verify-otlp traces.json

Copynpm install sebbi

Copyimport { SebbiSpanProcessor } from "sebbi/otel";

new NodeSDK({ spanProcessors: [new SebbiSpanProcessor()] }).start();
// Vercel AI SDK: experimental_telemetry: { isEnabled: true }

Copypip install sebbi

Copyfrom sebbi.integrations.crewai import step_callback

crew = Crew(agents=[...], tasks=[...], step_callback=step_callback)
# every agent step gets a receipt

Copynpm install sebbi

Copyimport { wrapTools } from "sebbi";

const result = await generateText({
  model, prompt,
  tools: wrapTools({ getWeather, sendEmail }),   // every tool call gets a receipt
});

Copypip install sebbi

Copyfrom sebbi.integrations.mcp import sealed

@mcp.tool()
@sealed("lookup_customer")
def lookup_customer(customer_id: str) -> dict:
    ...
# every MCP tool call gets a receipt