how+to+fix+wandb+UsageError+api+key+not+configured+error

Not specified by the original author.

TL;DR

Set the API key in the environment the process actually runs in: Comet reads COMETAPIKEY at import time, so export it for the training process, or set it in the project configuration, and confirm the process can see it before starting the experiment. The experiment fails at creation because Comet finds no key in its environment. Keys set in a different shell, a notebook kernel that predates the export, or a scheduler that scrubs environment variables all produce the same error.

Comet experiment failed error "COMET_API_KEY environment variable is not set"

Use this when

• The check or run fails with this symptom: a Comet experiment fails with COMETAPIKEY environment variable is not set.
• You are working on a Comet ML experiment started from a script, a notebook, or a scheduled training job and the failure repeats on the same data or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• A key that is set but invalid, which fails later with an authentication response rather than this message.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Print whether the variable is present from inside the training process, without printing its value. Verify: the process environment lacks the variable, confirmed from inside
2. Set the variable in the launcher that starts training: the shell profile, the job definition, or the notebook kernel environment. Verify: the variable is part of the process environment
3. Alternatively store the key through the Comet configuration command for the user account. Verify: Comet reports a configured key
4. Restart the process or kernel so the new environment is picked up. Verify: a fresh process sees the variable
5. Start a minimal experiment. Verify: the experiment is created and appears in the Comet workspace

Variant phrasings

comet COMETAPIKEY environment variable is not set

The shorter phrasing focused on the named failure.

comet experiment failed api key not set

The symptom phrasing a searcher tries next.

comet api key environment fix

The variant naming the failing stage or tool directly.

Compatibility: Comet ML Python client, environment based configuration

Why it happens

Comet reads its key once, at client initialisation, from the process environment. Interactive setup steps often set the key in a shell the training job never inherits, especially under schedulers, containers, and notebook kernels started before the export.

Edge cases / pitfalls

• Never commit the key into the training script or a repository config to make the error go away; use the job secret store.
• Rotating a key in the Comet UI does not update running jobs; they keep failing until their environment is refreshed.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_3Snt9bCYg-tfFdaiLEtAZQ

Resolved from the public thread: https://vectle.com/posts/pst_3Snt9bCYg-tfFdaiLEtAZQ

Thread query: Comet experiment failed error "COMETAPIKEY environment variable is not set"

TL;DR: Set the API key in the environment the process actually runs in: Comet reads COMETAPIKEY at import time, so export it for the training process, or set it in the project configuration, and confirm the process can see it before starting the experiment. The experiment fails at creation because Comet finds no key in its environment. Keys set in a different shell, a notebook kernel that predates the export, or a scheduler that scrubs environment variables all produce the same error.

Not specified by the original author.

TL;DR

The message names the variable it wanted. import { openai } from '@ai-sdk/openai'; // throws LoadAPIKeyError at call time if OPENAIAPIKEY is unset const { text } = await generateText({ model: openai('gpt-5'), prompt: 'Hi' }); What to know: 1.

Steps

1. LoadAPIKeyError means the provider looked for its key in the environment and found nothing. The message names the variable it wanted.
2. import { openai } from '@ai-sdk/openai';
3. // throws LoadAPIKeyError at call time if OPENAIAPIKEY is unset

const { text } = await generateText({ model: openai('gpt-5'), prompt: 'Hi' });

4. What to know:
5. It throws when you make the call, not when you import or construct the provider. A file that imports fine can still fail at runtime.
6. Read the message: it tells you the exact env var name. Copy it character for character into your env config; OPENAIAPIKEY vs OPENAIAPI_KEY typos are the classic.
7. In Next.js, server-only env vars must not have the NEXTPUBLIC prefix, and they must be set in the deployment environment, not just .env.local. Vercel preview vs production env mismatch is the top cause.
8. In edge runtime the same env vars are available; a LoadAPIKeyError on edge means the variable is genuinely unset, not an edge limitation.
9. If you pass keys explicitly (multi-tenant), a LoadAPIKeyError means your key-passing code did not run, e.g. the factory was constructed without the apiKey option.
10. Never "fix" this by hardcoding the key in source. Put it in the environment and keep the file out of version control.

When to use

You are seeing this: LoadAPIKeyError means the provider looked for its key in the environment and found nothing. Use this skill when you run into "LoadAPIKeyError: the provider key env var is missing".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

No specific versions are mentioned in the source material, so treat the fix as generally applicable and check the examples against whatever you have installed.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Verified against the live AI SDK docs 2026-09-26. The errors reference lists LoadAPIKeyError under provider requests and responses. The quickstarts configure AIGATEWAYAPI_KEY and provider keys via .env files, and the provider-key wiring is env-based throughout the docs.

Not specified by the original author.

TL;DR

Issue stripe/stripe-node#2207 (closed, 18 comments): ### Describe the bug When installing either the version 17.0.0 or 17.1.0 in a brand new next.js 14 from scratch after initializing stripe ` import Stripe from 'stripe'; export const stripe = new Stripe(process.env.STRIPE\_SECRET\_KEY as string, { apiVersion: '2024-06-20', typescript: true }) ` I get the following error: Neither apiKey nor config.authenticator provided This issue is not seen after downgrading to 16.12.0

Steps

1. Issue stripe/stripe-node#2207 (closed, 18 comments): ### Describe the bug
2. When installing either the version 17.0.0 or 17.1.0

in a brand new next.js 14 from scratch after initializing stripe

import Stripe from 'stripe';

export const stripe = new Stripe(process.env.STRIPE_SECRET_KEY as string, {
 apiVersion: '2024-06-20',
 typescript: true
})

3. I get the following error: Neither apiKey nor config.authenticator provided

This issue is not seen after downgrading to 16.12.0

4. Create a next.js project

adding stripe version 17.1.0 add a lib folder with a new file stripe.ts with the following:

impor

5. [xavdid-stripe (maintainer)]: Confident the issue stems from the env key not being set during build stages in certain environments even though it's available at runtime. v17 added an explicit null-key check in the constructor, so a null `process.env.STRIPE_SECRET_KEY` now raises this error (older versions silently created a broken client). README updated in PR #2238 with suggestions: initialize stripe lazily, put a placeholder key after the env read, or make the API key available earlier in the build.

## When to use

Use this skill when you run into "Neither apiKey nor config.authenticator provided".

## When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

## Versions

Versions mentioned in the source: 17.0.0, 17.1.0, 16.12.0. If you are on something much newer or older, the details may have shifted.

## Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Asked in gh:stripe/stripe-node#2207 (https://github.com/stripe/stripe-node/issues/2207): Neither apiKey nor config.authenticator provided. The issue report: Issue stripe/stripe-node#2207 (closed, 18 comments): ### Describe the bug

When installing either the version 17.0.0 or 17.1.0 in a brand new next.js 14 from scratch after initializing stripe

import Stripe from 'stripe';

export const stripe = new Stripe(process.env.STRIPE_SECRET_KEY as string, {
    apiVersion: '2024-06-20',
    typescript: true
})

I get the following error: Neither apiKey nor config.authenticator provided This issue is not seen after downgrading to 16.12.0

To Reproduce

Create a next.js project adding stripe version 17.1.0 add a lib folder with a new file stripe.ts with the following:

impor The verified answer: [xavdid-stripe (maintainer)]: Confident the issue stems from the env key not being set during build stages in certain environments even though it's available at runtime. v17 added an explicit null-key check in the constructor, so a null `process.env.STRIPE_SECRET_KEY` now raises this error (older versions silently created a broken client). README updated in PR #2238 with suggestions: initialize stripe lazily, put a placeholder key after the env read, or make the API key available earlier in the build.