openai-webhooks

Receive and verify OpenAI webhooks. Use when setting up OpenAI webhook handlers for fine-tuning jobs, batch completions, or async events like fine_tuning.job.completed, batch.completed, or realtime.call.incoming.

2.04x

Quality

92%

Does it follow best practices?

Impact

100%

2.04x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

100%

58%

Fine-Tuning Job Notification Service

Express webhook signature verification

Criteria

Without context

With context

Raw body middleware

41%

100%

Signed content format

100%

Secret prefix removal

100%

HMAC-SHA256 algorithm

50%

100%

Version check

12%

100%

Timestamp window validation

100%

Timing-safe comparison

100%

Correct headers read

100%

400 on invalid signature

100%

Verify before parse

33%

100%

Attribution comment

100%

Success response body

100%

Secret from env var

100%

41%

Batch Processing Completion Handler (Python)

Python FastAPI webhook handler

Criteria

Without context

With context

Raw body retrieval

100%

Signed content format

20%

100%

Secret prefix removal

100%

HMAC-SHA256 algorithm

50%

100%

Timing-safe comparison

100%

Timestamp window validation

100%

Version prefix check

12%

100%

HTTP 400 on failure

100%

Batch event type dispatch

100%

Correct headers declared

100%

Success response

100%

Secret from env var

100%

53%

OpenAI Event Router for Next.js App

Next.js webhook handler with event routing

Criteria

Without context

With context

Raw body as text

100%

Signed content format

100%

Secret prefix removal

100%

HMAC-SHA256 computation

100%

Timestamp replay prevention

100%

Signature v1 version check

100%

Fine-tuning event routing

100%

Batch event routing

100%

Realtime event routing

100%

Async processing note

33%

100%

400 on invalid signature

100%

Success response body

100%

Attribution comment

100%

Secret from env var

100%

Lowercase headers

50%

100%

Repository: hookdeck/webhook-skills
Commit: f8a4801

Evaluated: about 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Fine-Tuning Job Notification Service Batch Processing Completion Handler (Python)OpenAI Event Router for Next.js App

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.