One API. Every model.Audit-ready by design.
Basient is the OpenAI-compatible gateway between your product and every LLM provider — millisecond failover, hard tenant isolation, and a complete audit trail. Built for teams that answer to regulators, not just users.
✓ outcome=success · cost=1,284 µUSD · tenant=acme · one immutable record
Capabilities
The governance layer your AI stack is missing.
Smart routing & failover
Latency-, cost- and policy-aware routing across 10+ providers. Mid-stream failure is terminal and visible — never a silent retry.
Hard multi-tenancy
Tenant isolation enforced at the query layer. Cross-tenant leakage is structurally impossible — and every route ships with a leakage test.
Complete audit trail
Every request produces exactly one immutable usage record: who, what, which model, exact cost. Export to your SIEM.
Data residency
Pin tenants to EU, US or BR regions. Data stays where the contract says it stays.
Zero-retention mode
Prompts and completions never persisted. Metadata-only logging for regulated workloads.
Cost governance
Budgets per tenant, per flow, per client key. Hard caps, soft alerts, integer micro-USD accounting — no float drift.
Enterprise access
SAML SSO, SCIM provisioning, fine-grained RBAC. Provider secrets live in a vault — never in env vars, never in logs.
Provider opacity
Your clients speak OpenAI and never learn who served the request. Swap providers without breaking one integration.
How it works
In production before lunch.
Point your SDK
Change one line. Any OpenAI client works unmodified.
Define policy
Routes, budgets, residency and model allowlists in versioned, validated config.
Audit everything
Real-time usage, per-request cost, full traces. Export anywhere.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.basient.com/v1",
apiKey: process.env.BASIENT_KEY,
});
// Done. Every model, one API — fully audited.Design partner program
Five seats. Founding terms.
We're onboarding five design partners running regulated LLM workloads — fintech, health, gov. You get founding pricing and a direct line to the engineers who built the gateway; we get your hardest compliance questions.
5 seats · founding terms
Apply for a seatSecurity
Security is the product, not a page.
AES-256 at rest. TLS 1.3 in transit. Keys in HSM-backed vaults. Annual third-party penetration tests. SOC 2 Type II report available under NDA.
Visit the Trust CenterReady for AI you can defend in an audit?
Thirty minutes with the engineers who built it. Your traffic patterns, real answers.