November 23, 2025
Article
BYOK Has Arrived in Nexus: Use Your Own API Keys
Today we’re shipping Bring Your Own API Key (BYOK) in Nexus.
That means you can now connect your own AI provider key(s) and run Nexus using your billing, your rate limits, and your model access—while still getting the Nexus experience for orchestration, workflows, and multi-model routing.
This launch is about one thing: control without complexity.
What BYOK unlocks (in plain terms)
With BYOK enabled, Nexus becomes the layer where you build and operate—and your provider account becomes the layer where you pay and govern usage.
You can now:
Connect your own provider key to Nexus
Run chats, agents, and workflows through your own account
Keep costs and quotas aligned with your existing provider plan or enterprise agreement
Scale faster with your provider’s limits instead of shared pools
Experiment more freely by switching models/providers without changing how your team works
What’s included in the BYOK release
Here’s what you should expect from the first release of BYOK in Nexus:
1) Secure key connection + management
Add your API key in Nexus settings
Keys are treated as secrets (masked in the UI, designed for rotation)
2) Clear “who is using what” behavior
Your Nexus usage routes through the key you configure (workspace-level or user-level depending on your setup)
Provider errors (rate limit / quota) surface clearly so you can react quickly
3) Model selection stays simple
You still pick models the same way inside Nexus—BYOK just changes whose account is used behind the scenes
Getting started in 2 minutes
Open Nexus → Settings → API Keys
Click Add Key
Choose your provider
Paste your key and Save
(Optional) Set a default provider/model for your workspace
After that, just use Nexus normally—your next chats and workflows will run through the configured key.
Who BYOK is for
BYOK is especially useful if you’re:
A builder who already pays for a provider account and wants Nexus as the orchestration/UI layer
A team that needs costs to stay inside existing procurement (startup budgets or enterprise contracts)
A multi-model team comparing outputs across providers without rewriting tooling
Anyone who wants “one Nexus workflow” but “many model options”
Security and governance: how we think about it
BYOK is a trust feature. Our guiding principles:
You control the credential (add, rotate, revoke)
Secret handling by default (keys are masked, not displayed in full after saving)
Designed for rotation (you shouldn’t fear updating keys)
Clear ownership (workspace admins control workspace keys; personal keys stay scoped to the user when enabled)
If you have internal details you’re ready to share (audit logs, secret manager, encryption-at-rest), this is the spot to include them. If not, keeping it principle-based is accurate and still confidence-building.
Practical tips for teams rolling out BYOK
Start with a single workspace key for quick enablement
Move to per-user keys if you need strict usage attribution or different provider access per user
Set a default model so interns and new teammates don’t need to choose every time
Document rotation ownership (“who rotates keys and when”) to avoid surprise downtime
Current limitations (so you’re not surprised)
Depending on your rollout stage, you may want to include a short “v1 limitations” section like:
Some providers/models may still be “coming soon”
Workspace key vs per-user key availability may depend on your plan/workspace configuration
Advanced governance features (fine-grained routing rules, deeper usage analytics, audit exports) may be in progress
Keeping this transparent tends to reduce support load and builds trust.
What’s next
BYOK is the foundation for a more open Nexus:
More providers
More model routing controls
Better usage visibility (team-level and user-level)
Stronger governance tooling for admin teams
If Nexus is your multi-model cockpit, BYOK makes it your cockpit.
FAQ
Does BYOK mean Nexus can’t be used without a key?
Not necessarily—many teams want a hosted/quick-start option plus BYOK for control. If you offer both, say so.
Can I add multiple keys?
If supported in your build, call it out (it’s a huge win). If not yet, say it’s on the roadmap.
What if my key hits rate limits or runs out of quota?
Nexus will surface the provider error clearly so you can rotate keys, upgrade your provider plan, or switch models/providers.
Can I remove my key later?
Yes—BYOK should always be reversible.

