KnoxCall vs VGS (Very Good Security)
VGS is the payments-tokenization leader — its SAFE reverse/forward proxy swaps cardholder data and PII for format-preserving aliases on the wire, and it holds real PCI depth, network tokens, and payment orchestration KnoxCall does not. KnoxCall runs the same detokenize-on-the-wire mechanic for both data and outbound API credentials — self-serve, minutes to set up, with no six-figure enterprise floor.
KnoxCall Advantages
- Same wire-swap mechanic, extended to outbound API credentials — the real Stripe/OpenAI/Twilio key never enters your workload (injected at the egress hot path)
- Custodial rotation mints/verifies/deletes provider child keys — rotates the underlying vendor key, not just a lease TTL
- Format-preserving tokenization for PAN / SSN / email + one-shot Ephemeral Proxy, in the same platform
- Encryption-as-a-Service: encrypt / decrypt / rewrap + JWT/RSA/ECDSA/Ed25519 signing with alg-confusion defence + BYOK
- AI Gateway: capability keys, streaming PII redaction, prompt firewall + canary leak, per-agent budgets
- DPoP-bound short-lived tokens + RFC 8693 workload identity federation
- Self-serve from $0 — no $1K/mo floor, no enterprise sales cycle, one bill
- Built-in analytics, geo, and alerting through a modern developer UI
VGS Advantages (Honest)
- The payments-tokenization leader — 3B+ tokens processed, deep card-data heritage
- Network Tokens (Visa/Mastercard/Amex/Discover) with automatic account updater — KnoxCall has none of this
- Payment orchestration & routing across multiple PSPs from one integration
- PCI DSS Level 1 service provider; can carry the bulk of your card-data compliance scope
- Mature, enterprise-proven vault trusted by banks, fintechs, and large merchants
Feature Comparison
Credential & Data Exposure on the Wire
| Feature | KnoxCall | VGS |
|---|---|---|
Outbound API credential injected at the egress wire The real vendor bearer key (Stripe, OpenAI, Twilio, SendGrid) is swapped in on the egress hot path — it never enters your workload | ✓
Egress wire injection — no value-GET path on the hot path | ✗
Data-tokenization focus; not built to custody your outbound API keys |
Detokenize sensitive DATA on the wire (PAN / SSN / PII) Format-preserving aliases swapped back to real values only at the proxy boundary | ✓
Format-preserving tokens (Pro+) | ✓
Its core capability — the SAFE proxy, done at scale |
Rotates the underlying VENDOR key, not just a token Custodial rotation mints/verifies/deletes provider child keys (Cloudflare, SendGrid, AWS IAM…) | ✓
Rotates the real vendor key itself | ✗
Tokenizes data; no custody/rotation of your provider API keys |
Survives a prompt-injected agent running printenv / cat Attacker code in the workload dumps its own env and files | ✓
No real vendor key present to print | ~
Protects tokenized data on the wire, but your outbound keys still live in the pod |
Tokenization & Data Protection
| Feature | KnoxCall | VGS |
|---|---|---|
Format-preserving tokenization (PAN / SSN / email) Shape-mimicking aliases so downstream systems stay untouched | ✓
Format-preserving tokens (Pro+) | ✓
Best-in-class; the category leader |
SAFE-style reverse/forward proxy Intercept requests, swap tokens for real values (or vice-versa) at the boundary | ✓
Ephemeral Proxy + routes | ✓
SAFE proxy — its flagship |
One-shot / ephemeral detokenizing proxy Single-use reveal that never stores or logs the plaintext | ✓
Ephemeral Proxy (Starter+) | ~
Proxy is persistent-route oriented |
Network Tokens (Visa / Mastercard / Amex / Discover) Card-network-issued PAN substitutes with auto account updater | ✗
Not a card-network token issuer | ✓
Full network tokens + account updater |
Payments & Compliance Depth
| Feature | KnoxCall | VGS |
|---|---|---|
Payment orchestration / multi-PSP routing Route transactions across gateways & processors from one integration | ✗
Not a payments product | ✓
Dedicated orchestration layer |
PCI DSS Level 1 service provider (offloads card scope) Provider carries the bulk of your cardholder-data PCI burden | ~
Security-aligned; SOC 2 Type II in progress; NOT PCI-certified | ✓
PCI DSS L1; can provide an auditor |
Compliance posture Attestations you can lean on today | SOC 2 II in progress · BAA available | PCI L1 · SOC 2 |
Crypto & Encryption-as-a-Service
| Feature | KnoxCall | VGS |
|---|---|---|
Encrypt / decrypt / rewrap (Transit-style) Encryption-as-a-service without exposing key material | ✓ | ✗
Tokenization vault, not an EaaS crypto API |
JWT + asymmetric signing (RSA / ECDSA / Ed25519) Sign & verify with algorithm-confusion defence | ✓
Alg-confusion defence built in (Pro+) | ✗ |
BYOK via customer master key Bring your own master key | ✓
Tenant master key (Enterprise) | ~
Enterprise / isolated-vault options |
AI / Agent Security
| Feature | KnoxCall | VGS |
|---|---|---|
LLM egress gateway for AI agents Capability keys + streaming PII redaction + prompt firewall + canary leak; provider key never enters the workload | ✓
AI Gateway (redaction & packs Pro+) | ✗
No AI egress / prompt-firewall layer |
Per-agent budgets Cap spend/usage per agent identity | ~
Recorded & observable, not yet hard-enforced | ✗ |
Workload identity federation (OIDC exchange, DPoP-bound) Swap a workload’s OIDC identity for a short-lived, sender-constrained token (RFC 8693) | ✓
DPoP-bound tokens via OIDC exchange | ✗ |
Operations & Developer Experience
| Feature | KnoxCall | VGS |
|---|---|---|
Self-serve from a free tier Sign up and ship without a sales call or minimum spend | ✓
Free Forever — no floor | ~
Free account for API access, but plans start at $1K/mo |
Managed SaaS — no infrastructure to run Zero deploy/operate burden | ✓ | ✓ |
Setup time Time from sign-up to production | Minutes | Days (integration + onboarding) |
Built-in request analytics & geo Usage metrics and a live request map | ✓ | ~
Dashboards focused on vault/payments |
Custom alerts (Email / SMS / Slack) Notify on anomalies and thresholds | ✓
Pro+ | ~
Via integrations |
In Depth
VGS and KnoxCall share a core insight: the safest way to handle a secret is to keep the plaintext off your machine and swap it in at a proxy boundary on the wire. VGS pioneered this for cardholder data — its SAFE reverse/forward proxy replaces PANs, SSNs, and PII with format-preserving aliases so your systems never touch the raw values, and it has built that into the payments-tokenization category leader, with 3B+ tokens processed and PCI DSS Level 1 depth. KnoxCall applies the same mechanic to a second, adjacent problem the payments world doesn’t cover: your outbound API credentials.
When to Choose KnoxCall
Choose KnoxCall when the credential you’re worried about isn’t just a card number in your database — it’s the pile of Stripe, OpenAI, Twilio, and SendGrid keys your services carry to call third parties, plus the PAN/SSN/email you’d like to tokenize, plus the crypto and AI-egress controls around them. KnoxCall does all of it in one self-serve managed platform on one bill: format-preserving tokenization vaults, a one-shot Ephemeral Proxy, Encryption-as-a-Service (encrypt/decrypt/rewrap and asymmetric JWT/RSA/ECDSA/Ed25519 signing with alg-confusion defence), custodial rotation of the real vendor keys, DPoP-bound workload identity federation, and an AI Gateway with streaming PII redaction and a prompt firewall. And you start at $0, not a $1,000/month floor.
When to Choose VGS
If your problem is payments, VGS is very likely the better tool, and we’ll say so plainly. VGS is the tokenization leader for a reason: it issues true Network Tokens across Visa, Mastercard, Amex, and Discover with an automatic account updater when cards expire — something KnoxCall does not do at all. It offers payment orchestration and multi-PSP routing so you can manage many processors through one integration. And as a PCI DSS Level 1 service provider it can carry the bulk of your cardholder-data compliance scope and even provide an auditor. KnoxCall is security-aligned with SOC 2 Type II in progress and a BAA available — but it is not PCI-certified, and if card-data compliance offload or network tokens are the whole point of your project, VGS wins that comparison. Its vault is mature and trusted by banks, fintechs, and large merchants at scale.
Where KnoxCall Pulls Ahead
VGS tokenizes the data flowing across your systems. It was never built to custody the API keys your workloads use to call out to third parties — and that is exactly the class KnoxCall targets. On the egress hot path, the real vendor bearer key is injected at the wire and never enters your workload’s memory or environment, so an RCE, a poisoned dependency, or a prompt-injected agent running printenv finds nothing to steal. Custodial rotation goes further than any token TTL: KnoxCall mints, verifies, and deletes the provider’s own child keys, rotating the underlying vendor secret itself. Layer on Encryption-as-a-Service, asymmetric JWT signing, and an AI Gateway, and KnoxCall covers ground VGS’s payments focus simply doesn’t.
The Honest Residual
Egress wire injection is not zero-residual, and it is deliberately scoped. The “the key never enters your workload” claim applies to the egress hot path — the real Stripe/OpenAI/Twilio bearer key. What still lives in your pod is a short-lived, scoped, revocable KnoxCall token: it can route requests through the proxy until it is revoked, so a compromise in that window can still make calls. The difference is what that token is — short-lived, scoped to specific routes, audited on every call, DPoP-bindable, and revocable on demand — versus a static vendor key valid for years. KnoxCall is a trust dependency and an extra network hop, the same tradeoff you accept with any federation or token-exchange layer. Per-agent AI budgets are recorded and observable today, not hard-enforced. And KnoxCall is a general secrets-and-egress platform, not a payments processor: it does not issue network tokens, orchestrate PSPs, or carry PCI Level 1 scope. For those, VGS remains the right choice.
Pricing Comparison
KnoxCall
- 1 Route
- 100 API calls/month
- 1 Secret · 1 Vault (1k tokens)
- 2 Crypto Keys (AES)
- 1 Inbound Webhook
- Basic Analytics · 7-day retention
- 2 Routes
- 10K API calls/month
- 5 Vaults (50K tokens)
- Ephemeral Proxy (100K ops/mo)
- Basic Analytics (no Alerts/FPE/JWT/redaction — Pro+)
- 25 Routes
- 1M API calls/month
- Email Alerts
- 25 Vaults (1M tokens) · Format-Preserving Tokens
- Streaming PII Redaction (FF3-1 + hold-back FSM)
- Prompt Firewall + Canary Leak · 100K AI calls/mo
- OIDC workload federation · Advanced Analytics
- Unlimited Routes
- Unlimited API calls
- Unlimited Team · Unlimited Vaults / tokens / Crypto Keys
- BYOK via tenant master key
- Dedicated Fixed Outbound IP
- Priority Support
VGS (Very Good Security)
- Sign up for API/vault access to build & test
- Flexible tokenization APIs
- No production commitment on its own
- Core VGS Vault
- Priced by vault interactions (token create/exchange)
- Scales with data-interaction volume
- Vault + Network Tokens + Account Updater
- PCI Compliance Subscription + VGS-provided auditor
- Payment orchestration, Compute, Card Attributes
VGS pricing is interaction-based: an interaction is every time a token is created or exchanged for sensitive data. Plans start at $1,000/month; the Growth package (network tokens, PCI subscription, orchestration) is custom-quoted via sales. Source verified July 2026: verygoodsecurity.com/pricing.
Frequently asked questions
Can KnoxCall replace VGS?
It depends on the problem. If you need network tokens, payment orchestration, or a PCI DSS Level 1 provider to carry your cardholder-data compliance scope, KnoxCall is not a replacement — VGS remains the right choice for payments. If your concern is outbound API credentials plus PAN, SSN, and email tokenization, KnoxCall applies the same detokenize-on-the-wire mechanic to both in one self-serve platform.
Can I run KnoxCall alongside VGS?
Yes. VGS tokenizes the data flowing through your systems, while KnoxCall custodies the API keys your workloads use to call out to third parties — two different classes of secret. A common setup keeps VGS for cardholder data and payments while KnoxCall handles outbound credential injection, encryption-as-a-service, and AI egress controls.
When is VGS the better choice?
VGS is the better choice when the problem is payments. It issues network tokens across Visa, Mastercard, Amex, and Discover with an automatic account updater, offers payment orchestration and multi-PSP routing, and as a PCI DSS Level 1 service provider it can carry the bulk of your cardholder-data compliance scope and even provide an auditor. KnoxCall is not PCI-certified and does none of these, so if card-data compliance offload or network tokens are the point of your project, VGS wins.
How does KnoxCall pricing compare to VGS?
KnoxCall is self-serve with a Free Forever tier, Starter at $19/month, Pro at $99/month, and a custom Enterprise plan. VGS offers a free account for building and testing, but paid plans start at $1,000/month, priced by vault interactions — each time a token is created or exchanged — with the Growth package custom-quoted through sales.
Same wire-swap. Now for your API keys too — from $0.
Keep VGS for payments if that’s your problem. For outbound API credentials, PII tokenization, crypto, and AI egress in one self-serve platform, KnoxCall takes the real key off your machine — no six-figure floor, minutes to set up.