name: coreweave-webhooks-events description: 'Monitor CoreWeave cluster events and GPU workload status.

Use when tracking pod lifecycle events, monitoring GPU utilization,

or alerting on inference service health changes.

Trigger with phrases like "coreweave events", "coreweave monitoring",

"coreweave pod alerts", "coreweave gpu monitoring".

' allowed-tools: Read, Write, Edit, Bash(kubectl:*) version: 1.0.0 license: MIT author: Jeremy Longshore jeremy@intentsolutions.io tags:

• saas
• gpu-cloud
• kubernetes
• inference
• coreweave compatibility: Designed for Claude Code

CoreWeave Webhooks & Events

Overview

CoreWeave emits Kubernetes-native events and custom status callbacks for GPU workload lifecycle management. Monitor instance readiness, job completion, volume attachment, and node health to build automated scaling, alerting, and recovery pipelines for GPU-accelerated inference and training workloads.

Webhook Registration

const response = await fetch("https://api.coreweave.com/v1/webhooks", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.COREWEAVE_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    url: "https://yourapp.com/webhooks/coreweave",
    events: ["instance.ready", "job.completed", "volume.attached", "node.unhealthy"],
    secret: process.env.COREWEAVE_WEBHOOK_SECRET,
  }),
});

Signature Verification

import crypto from "crypto";
import { Request, Response, NextFunction } from "express";

function verifyCoreWeaveSignature(req: Request, res: Response, next: NextFunction) {
  const signature = req.headers["x-coreweave-signature"] as string;
  const timestamp = req.headers["x-coreweave-timestamp"] as string;
  const payload = `${timestamp}.${req.body.toString()}`;
  const expected = crypto.createHmac("sha256", process.env.COREWEAVE_WEBHOOK_SECRET!)
    .update(payload).digest("hex");
  if (!crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected))) {
    return res.status(401).json({ error: "Invalid signature" });
  }
  next();
}

Event Handler

import express from "express";
const app = express();

app.post("/webhooks/coreweave", express.raw({ type: "application/json" }), verifyCoreWeaveSignature, (req, res) => {
  const event = JSON.parse(req.body.toString());
  res.status(200).json({ received: true });

  switch (event.type) {
    case "instance.ready":
      registerEndpoint(event.data.instance_id, event.data.gpu_type); break;
    case "job.completed":
      collectArtifacts(event.data.job_id, event.data.output_path); break;
    case "volume.attached":
      mountStorage(event.data.volume_id, event.data.node_name); break;
    case "node.unhealthy":
      drainAndReschedule(event.data.node_id, event.data.reason); break;
  }
});

Event Types

Retry & Idempotency

const processed = new Set<string>();

async function handleIdempotent(event: { id: string; type: string; data: any }) {
  if (processed.has(event.id)) return;
  await routeEvent(event);
  processed.add(event.id);
  if (processed.size > 10_000) {
    const entries = Array.from(processed);
    entries.slice(0, entries.length - 10_000).forEach((id) => processed.delete(id));
  }
}

Error Handling

Resources

• CoreWeave Kubernetes Docs

Next Steps

See coreweave-security-basics.