API Security Consulting
Most API breaches aren't broken cryptography — they're a gateway that checks the signature and nothing else. We design, integrate, and test the full chain: gateway policy, token validation, scopes, object-level authorization, and the telemetry to prove it works.
How APIs Actually Get Broken
The OWASP API Top 10 is a catalog of authorization mistakes — not crypto failures.
- Broken object-level authorization (BOLA). the token is valid, but nobody checks that user 42 may read order 17 — the #1 API killer.
- Signature-only JWT validation. the gateway verifies the signature but skips audience, issuer, expiry, and algorithm pinning — so any valid token from anywhere gets in.
- API keys where OAuth belongs. long-lived, unscoped keys shared across teams and pasted into repos, instead of short-lived scoped tokens.
- Immortal bearer tokens. stolen tokens that keep working for hours because nothing binds them to the client (DPoP/mTLS) and nothing rotates or revokes them.
- Unbounded GraphQL. introspection open in production, no depth or cost limits, and one query that joins its way to the whole database.
- No rate limits, no telemetry. scraping and credential stuffing look exactly like traffic when nothing counts, throttles, or alerts.
What We Deliver
Concrete, standards-based building blocks — designed, implemented, and handed over with docs your team owns.
Gateway Policy Design & Integration
authentication, validation, and rate-limit policy for Kong, AWS API Gateway, Azure APIM, GCP, WSO2, MuleSoft, KrakenD, Cloudflare, and IBM DataPower — matched to your traffic, not copied from a template.
JWT Validation & Token Hardening
audience, issuer, expiry, and algorithm checks done right (RFC 8725), plus sender-constrained tokens with DPoP (RFC 9449) or mTLS (RFC 8705) where theft matters.
Scope & Authorization Design
scope models that mean something, and object-level checks (FGA/ReBAC with OpenFGA or OPA) at the layer where BOLA actually happens.
OWASP API Top 10 Review
a systematic pass over your APIs against the OWASP API Security Top 10, with findings ranked by exploitability and a concrete fix plan.
GraphQL & Modern API Security
introspection policy, depth and cost limits, persisted queries, and per-field authorization for GraphQL, gRPC, and event-driven APIs.
API Security Testing & Telemetry
abuse-case test suites with k6, Postman Newman, Pytest, and Playwright, plus SIEM-ready identity telemetry so attacks surface as alerts, not incidents.
Learn It Free First
We teach everything we practice — these IntegrAuth Academy lessons cover the same ground, free, no sign-up.
The API Gateway
Enforcement at the front door — what belongs in the gateway and what doesn't
IntegrAuth Academy · freeThe OWASP API Top 10 Tour
How APIs get broken — a guided walk through the top 10
IntegrAuth Academy · freeValidating a JWT
The checks that actually matter, in the order that matters
IntegrAuth Academy · freeStolen-Token Defenses
DPoP, mTLS & encrypted tokens — making theft not worth it
IntegrAuth Academy · freeScan Your API Surface — Free
Point our free micro-tools at your own API setup. Every check mirrors one we run in real engagements.
Gateway JWT Lint
Lint an API-gateway JWT-validation policy (Kong / Azure APIM / cloud)
gwjwtlint.integrauth.comJWKS Check
Grade a JWKS endpoint's key hygiene + verify a JWT
jwkscheck.integrauth.comGraphQL Check
Grade a GraphQL schema's security posture (paste-only)
graphqlcheck.integrauth.comDPoP Toolkit
Generate & validate DPoP proofs (RFC 9449)
dpop.integrauth.comCookie Check
Grade session-cookie & token-response hardening
cookiecheck.integrauth.comID Token Check
Lint an OIDC ID token's semantics + flag access-token misuse
idtokencheck.integrauth.comRelated deep dives: MCP Security · AI Agent Security
Make Your Gateway Actually Guard
Send us one API and its gateway policy — we'll show you what a real review finds.
[email protected]