Built for teams shipping APIs, webhooks, and third-party integrations.

You've implemented HMAC. Everything works locally.

Then you connect a partner — and the signature doesn't match.

After hours of debugging, you discover the issue: you're not signing exactly the same string. Maybe the JSON is serialized differently. Maybe query parameters are ordered differently. Maybe a proxy modified a header.

HMAC isn't hard. Integrations are.

Queuey removes this entire class of bugs by handling signing and delivery in one controlled pipeline.

The problem isn't cryptography — it's coordination

In theory, HMAC is simple: both sides take the same input and produce the same signature.

In reality, you need to agree on:

  • exactly how payloads are serialized
  • how query parameters are sorted
  • which headers are included
  • how timestamps are generated and validated
  • what happens during retries

And this is where things fall apart.

When it works fine

  • You control both systems
  • Payloads are simple
  • One language/runtime
  • No intermediaries modifying requests

When it gets painful

  • Third-party integrations
  • Webhooks and retries
  • Multiple clients in different languages
  • Payload transformations in transit
  • Requirements for security, audit, and key rotation

It's common for teams to spend hours — or days — debugging a single "signature mismatch."

Queuey solves the problem at the right layer

Queuey doesn't treat this as a cryptography problem. It treats it as an infrastructure problem.

Instead of asking every client and partner to implement HMAC perfectly, Queuey moves the responsibility out of your application code and into the integration layer itself.

One consistent way to sign

With Queuey, you don't need to define a complex signing spec and hope everyone implements it correctly.

  • All requests go through the same pipeline
  • The same canonicalization is applied every time
  • The same signing logic is used across all integrations

You no longer depend on every partner getting the details right.

You don't rely on every partner getting it right

In a typical HMAC integration, every partner must:

  • construct the signature base string correctly
  • handle encoding and sorting
  • implement replay protection
  • interpret documentation precisely

With Queuey:

  • signing and verification are handled consistently
  • partners integrate against a stable, predictable interface

You remove an entire category of integration bugs before they happen.

Webhooks and retries — without edge cases

HMAC becomes especially fragile once retries are involved:

  • timestamps change
  • payloads may differ
  • replay handling becomes tricky

Queuey handles this as part of the delivery layer:

  • deterministic retries
  • no lost events
  • full visibility into what was sent and when

So signatures remain valid — even when things don't go perfectly.

Built for production — not just the happy path

As integrations scale, requirements grow:

  • key rotation
  • audit logs
  • observability
  • multi-tenant security

These are rarely part of a first HMAC implementation — but they quickly become necessary.

With Queuey, they're built in from the start.

What you actually get

With Queuey, you move from:

  • fragile integrations
  • unclear specifications
  • manual debugging
  • inconsistent implementations

…to:

  • a single, consistent signing model
  • a controlled delivery pipeline
  • faster partner onboarding
  • integrations that hold up in production

In short

HMAC is simple. Getting multiple systems to do it identically is not.

Queuey makes it a non-issue — by moving it out of your application layer and into infrastructure.

Stop debugging signature mismatches. Ship integrations that work the first time.