Is Your AI API Relay Safe? Data Leakage, Model Swapping, and What to Do About It
AI API relays carry two risks that are easy to overlook: your prompts and responses pass through a third party's servers, and the model you think you're calling may quietly be swapped for a weaker one. Here's how BYOK and content filtering address both.
Two Risks That Are Easy to Overlook
If you're using an AI API relay (a service that forwards your requests to OpenAI, Claude, Gemini, and similar upstream providers), two things are worth understanding before you commit:
1. Data passes through someone else's servers. Your prompts and the responses you get back are received by the relay's own infrastructure before being forwarded. What they log, how long they retain it, and whether it's used for anything else is entirely up to them — not something you control.
2. The model you're calling may not be the model you think. A relay can advertise one model while quietly routing your traffic to a cheaper, weaker one. This is hard to detect from the outside.
These aren't hypothetical concerns. BazaarLink maintains a public relay probe directory that records per-model verdicts for relay endpoints that have accumulated enough evidence (at least 15 probes across 5+ distinct dates). These are point-in-time measurements, not an overall rating of any service — a relay's upstream can change at any time, so we'd rather you check the methodology and raw data than take a summary at face value.
Option One: BYOK — Connect Directly With Your Own Key
BYOK (Bring Your Own Key) lets you use an API key you obtained directly from OpenAI, Anthropic, Google, or another provider, called through BazaarLink's unified interface — but the traffic goes straight to the upstream provider using your own key, not a pool of capacity we've already purchased and are reselling to you.
That matters because it changes the relationship: instead of BazaarLink acting as a middleman who buys on your behalf and resells, you're billed directly by the upstream provider, and what we provide is the tooling — a unified interface, key management, budget controls. In actual billing terms, a successfully completed BYOK request carries a $0 platform fee — that's how our billing logic is actually written, not marketing language.
To be upfront: if your own key fails or runs out of quota, the request falls back to BazaarLink's platform pool by default (and is billed normally from that point). If you don't want that behavior, you can switch to "strict mode," where a BYOK failure returns an error instead of silently switching channels.
Set it up on the BYOK management page.
Option Two: Content Filtering, at the Organization Level
If you're a school or a company, individual accounts can enable protection from content filter settings, and the organization edition lets an admin configure it once in organization settings, applying it to every member's requests. Three configurable actions:
- Block — the entire request is rejected outright; nothing reaches the model.
- Redact — matched sensitive content (API keys, credit card numbers, national ID numbers, etc.) is automatically replaced with
[REDACTED]before the request continues. - Flag — the request goes through normally, but the violation is logged for later review.
This lets an admin catch the most common accidental leaks (like someone pasting an internal key into a prompt) without having to watch every member individually.
Migrating: Usually Two Lines
BazaarLink uses the industry-standard OpenAI-compatible API format. If you're already connected to OpenRouter or another relay, migrating is usually a two-line change:
- Base URL →
https://bazaarlink.ai/api/v1 - API Key → your BazaarLink key (starts with
sk-bl-)
Your code and SDK calls don't need to change. BYOK is configured separately in your dashboard by adding your own upstream key — the two can coexist, with most models routed through the platform pool and specific models routed through your own key.