Zero-Trust API Proxy

It's not where your secret is stored. It's that it's there at all.

It's not where your API keys are stored — .env, AWS Secrets Manager, Vault, K8s Secrets — it's that they end up live inside your running process, where an RCE, a poisoned npm install, or a prompt-injected AI agent can read them. You can't federate a Stripe or OpenAI key, so KnoxCall injects the real key at the egress wire instead. Your app, CI, and containers hold only a short-lived, revocable KnoxCall token — the provider key never arrives. See where your keys actually live →

Start free trial See how it works

KnoxCall dashboard showing API routes, request logs, and secured proxy code

AES-256Encryption at rest

SOC 2Type II ready

GDPRData residency

99.99%Uptime SLA

<50msp95 latency

Works with the APIs you already pay for

Live Traffic

Watch every API call your team makes.

Every outbound request — keyed, signed, and logged. Spot misuse, debug 4xxs, and prove what happened, all without leaving your dashboard.

See the dashboard →

api.proxy.knoxcall.com LIVE

How it works

Three steps to secure every API call

STEP 01

Store your credentials in the vault.

Drop in API keys, OAuth tokens, and webhook secrets. AES-256 at rest, per-tenant encryption keys, never exposed in plaintext — not even to us.

Vault — Add secret

Name

STRIPE_SECRET_KEY

Value

sk_live_•••••••••••••••••••••••

Environment

Production

Auto-rotate

30 days

STEP 02

Change one line. Secure everything.

Replace your API base URL with your KnoxCall proxy endpoint. We inject the credential at request time. No SDK, no client library, works with every language.

// Before: keys exposed in your code
const response = await fetch('https://api.stripe.com/v1/charges', {
  headers: {
    'Authorization': `Bearer ${process.env.STRIPE_KEY}`
  }
});

// After: one line change, keys are gone
const response = await fetch('https://acme.knoxcall.com/v1/charges', {
  headers: {
    'x-knoxcall-key': 'kc_live_a1b2c3d4',
    'x-knoxcall-route': 'stripe-charges',
    'x-knoxcall-environment': 'production'
  }
});

# Before: keys exposed in your code
response = requests.get(
    'https://api.stripe.com/v1/charges',
    headers={
        'Authorization': f'Bearer {os.environ["STRIPE_KEY"]}'
    }
)

# After: one line change, keys are gone
response = requests.get(
    'https://acme.knoxcall.com/v1/charges',
    headers={
        'x-knoxcall-key': 'kc_live_a1b2c3d4',
        'x-knoxcall-route': 'stripe-charges',
        'x-knoxcall-environment': 'production'
    }
)

# Before: keys exposed in your code
curl https://api.stripe.com/v1/charges \
  -H "Authorization: Bearer $STRIPE_KEY"

# After: one line change, keys are gone
curl https://acme.knoxcall.com/v1/charges \
  -H "x-knoxcall-key: kc_live_a1b2c3d4" \
  -H "x-knoxcall-route: stripe-charges" \
  -H "x-knoxcall-environment: production"

STEP 03

Watch, audit, revoke — in seconds.

Every call is logged with the user, route, and credential. A stolen Knox key from somewhere unfamiliar just bounces — and revoke kills the rest everywhere, in seconds.

stripe_secret_key — Active

Last used

2m ago by api-prod-1

unknowndenied · new origin12:55

sarah@accessed12:42

api-prod-1used 24×12:38

build-runneraccessed12:30

systemauto-rotated11:00

Features

Everything you need to secure your APIs

VAULT

Your secrets, encrypted at rest and in motion.

AES-256 envelope encryption, per-tenant master keys, and runtime injection. Your credentials live in one place — never in code, never in logs, never in env vars.

Vault — Production secrets

Last used2m ago · api-prod-1

Used by3 routes

Rotatesin 12 days