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Pentest › API Penetration Testing

Complete API Pentest
Find every flaw
attackers exploit

With testing based on OWASP Testing Methodologies, our certified pentesters perform 150+ manual tests + 15,000+ automated checks — revealing injection attacks, broken authorization, business logic flaws, and more. Zero false positives.

150+ manual tests
OWASP API Top 10
Zero false positives
Compliance-ready reports
BOLA found → /api/orders/{id}
Auth bypass fixed & verified
astrolabe — api pentest dashboard
API Pentest · api.yourapp.com
Expert: Maya K. · 150+ manual tests in progress
Active
Manual tests in progress: 112 / 150+ 75%
4
Critical
9
High
13
Medium
5
Low
MethodEndpointFindingSev.
GET/api/orders/{id}BOLA — unauthorized accessCRIT
POST/api/auth/loginBroken Auth — no rate limitHIGH
GET/api/admin/usersBFLA — unauth accessCRIT
PUT/api/profileMass assignment vuln.MED
🤖 AI remediation guidance ready for all findings Full report →
90%
YoY growth in API pentest demand
12,185
API vulnerabilities found via automated scans in 2024
726
Additional vulns found via deep manual testing
$1,444
Average potential loss per API vulnerability
OWASP API Top 10

We test every OWASP API risk —
and the ones they don't list

Our API pentest covers the complete OWASP API Security Top 10 (2023) plus business logic attacks, chained exploits, and real-world attack patterns from our pentest research team.

1

Broken Object Level Authorization (BOLA)

Attackers manipulate object IDs in API calls to access other users' data. We test every endpoint for BOLA vulnerabilities including horizontal and vertical privilege escalation.

2

Broken Authentication

Weak authentication tokens, missing rate limits, credential stuffing susceptibility — we simulate real attacker behavior against every auth flow your API exposes.

3

Broken Object Property Level Auth

APIs that expose more object properties than needed enable mass assignment attacks and data exfiltration. We enumerate and test every exposed property systematically.

4

Unrestricted Resource Consumption

Missing rate limits and resource quotas enable DoS attacks and abuse. We test all API endpoints for resource exhaustion vectors without causing actual disruption.

5

Broken Function Level Authorization (BFLA)

Admin functions accessible to regular users. We methodically test function-level authorization across all user roles, including unauthenticated access to administrative endpoints.

6

Unrestricted Access to Sensitive Business Flows

API workflows that can be abused at scale — bulk scraping, automated account creation, payment bypass. We test real business logic, not just OWASP checkbox items.

7

Server Side Request Forgery (SSRF)

APIs that fetch external resources can be abused to pivot into internal infrastructure. We test all URL parameters and data inputs for SSRF attack vectors.

8

Security Misconfiguration

Exposed debug endpoints, verbose error messages, missing security headers, open CORS policies. We audit every layer of your API configuration against security best practices.

9

Improper Inventory Management

Shadow APIs, zombie endpoints, outdated versions still in production. We discover your complete API attack surface — including the endpoints your team has forgotten about.

10

Unsafe Consumption of APIs

Third-party API integrations that trust external data without validation. We test your API's trust boundaries with external services that could become an attack vector.

How It Works

From target to certificate
in 4 clear steps

01
📋

Scope & Setup

Share your API documentation (OpenAPI/Swagger, Postman collections) or let us discover endpoints live. We agree on scope, authentication, and rules of engagement upfront.

02
🔍

Automated + Manual Testing

15,000+ DAST tests run automatically. Certified pentesters then perform 150+ manual tests targeting business logic, BOLA, auth chains, and attack patterns automation misses.

03
📄

Live Dashboard & Report

See vulnerabilities reported live as they're found. Communicate directly with our expert team through the dashboard. Request a rescan after each fix without waiting for a new engagement.

04
🏆

Certificate Issued

Once vulnerabilities are patched and verified, receive Astrolabe's publicly verifiable API pentest certificate — accepted by SOC 2, ISO 27001, HIPAA, and PCI-DSS auditors.

01
Injection Testing

Scan for injection attacks
that bypass your defenses

We test every API endpoint for injection attacks that send untrusted data to an interpreter — SQL, NoSQL, command, LDAP, template, and XML injection. We pinpoint, analyze, and give you step-by-step fix guidance for each finding.

  • SQL & NoSQL injection across all query parameters, headers, and request bodies
  • Command injection via shell-exposed API functionality
  • XXE & template injection in XML parsers and server-side rendering
  • Proof-of-concept payload delivered with every injection finding
Get API Pentest →
injection testing — live results
Injection Vectors Tested
SQL Injection
/api/products?category= · 42 payloads
CRITICAL
NoSQL Injection
/api/users/search · MongoDB operator
HIGH
Command Injection
/api/convert?file= · shell metachar
CRITICAL
LDAP Injection
/api/auth/directory · attribute filter
LOW
🔍 PoC payloads + reproduction steps included for every finding
02
Authorization Testing

Prevent hackers from
compromising your access controls

Broken Object Level Authorization (BOLA) is the #1 API vulnerability. We prevent attackers from exploiting token flaws or object-level authorization misses — ensuring every API endpoint is protected against unauthorized access across all user roles.

  • BOLA / IDOR — horizontal & vertical privilege escalation across all resources
  • BFLA — admin function access from regular user accounts
  • JWT tampering — algorithm confusion, weak secrets, claim manipulation
  • Mass assignment — unauthorized property modification via PUT/PATCH
Request a Pentest →
authorization tests — BOLA chain
BOLA Attack Simulation
# User A accesses User B's order
GET /api/orders/{"{"}user_b_id{"}"}
Authorization: Bearer user_a_token
→ 200 OK · User B's data returned
→ BOLA CONFIRMED — CRITICAL
Objects tested
847 unique IDs
BOLA vulnerabilities found
4 CRITICAL
Role escalation paths
2 HIGH
03
Live Reporting

See vulnerabilities live —
fix faster with expert guidance

Vulnerabilities are reported in real-time as our pentesters find them. Communicate directly with the security team through the dashboard, request retests after fixes, and track remediation progress — all in one place.

  • Live vulnerability feed — findings appear as pentesters discover them
  • Direct communication — chat with your pentester inside the dashboard
  • Request rescan after patch — verify fixes without waiting for a new engagement
  • Jira, Slack & GitHub — findings routed automatically to your workflow
live vulnerability feed
Pentest Activity Feed
● Live
BOLA found — /api/orders/{"{"}id{"}"}
2 min ago · Maya K.
CRIT
Rate limit missing — /api/auth/login
14 min ago · Alex R.
HIGH
SQL Injection — fixed & verified ✓
1h ago · Rescan passed
Fixed
💬Pentester Maya: "The BOLA on /orders is exploitable by changing the order ID. Fix by adding object-level ownership check."
04
Compliance Ready

Achieve compliance with
one API pentest engagement

Astrolabe's security engine covers all essential tests required for ISO 27001, HIPAA, SOC 2, PCI-DSS, and GDPR compliance. Our pentest reports are accepted by auditors worldwide and include all required evidence for API security controls.

  • SOC 2 Type II — API security controls evidence accepted by auditors
  • PCI-DSS Requirement 6.4 — penetration testing of cardholder data APIs
  • ISO 27001 Annex A — security testing mapped to controls
  • Publicly verifiable certificate — share with customers & investors
Get Compliance Report →
Compliance Coverage — API Pentest
🔒SOC 2 Type II
✓ Covered
💳PCI-DSS Req. 6.4
✓ Covered
⚕️HIPAA § 164.308
✓ Covered
📜ISO 27001 Annex A
✓ Covered
🌐GDPR Article 32
✓ Covered
What We Test

Every attack type your API faces

Our pentesters simulate real attackers — not checkbox auditors. We find the issues that matter.

🔓

Broken Object Level Authorization

BOLA / IDOR testing across every accessible resource. Horizontal and vertical privilege escalation with automated ID enumeration and manual role-based access testing.

🔑

Authentication & Token Attacks

Credential stuffing, JWT manipulation (alg:none, weak secrets, claim injection), OAuth misconfigurations, session fixation, and authentication bypass chains.

💉

Injection Attacks

SQL, NoSQL, LDAP, template, command injection across all endpoints. We test every input vector including JSON bodies, headers, path parameters, and query strings.

Rate Limiting & Resource Abuse

Missing rate limits enabling brute force, credential stuffing, bulk scraping, and account enumeration. We test throttling at function and resource level.

🕸️

Business Logic Flaws

Payment bypass, price manipulation, coupon stacking, workflow circumvention, and abuse of intended functionality at scale — the vulnerabilities automated scanners always miss.

📡

Sensitive Data & PII Exposure

Overly verbose API responses, debug information leakage, PII in logs, insecure storage references, and data returned beyond what the function requires.

BOLA / IDOR
Broken Authentication
JWT Manipulation
SQL Injection
Mass Assignment
SSRF
BFLA
Rate Limit Bypass
Business Logic
XXE Injection
OWASP API Top 10
Privilege Escalation
Credential Stuffing
PII Exposure
GraphQL Attacks
OAuth Misconfiguration
Loved by 1000+ CTOs & CISOs

What security teams say about
Astrolabe API Pentesting

"

Astrolabe API Security has proven overall to be very effective for our automated discovery and continuous scanning. It covered OWASP Top 10 and IDOR with more than a thousand test cases. Low false positives and responsive support helps our devs fix issues 40% faster.

SK
Saurabh K.
Product Security Engineer
"

Traffic-based discovery reliably surfaced zombie APIs we didn't even know existed. The automated scanning applies an extensive test set so findings are broad and deep. Overall a massive positive addition to our API security posture.

MF
Michael Foster
CTO, FinTech SaaS
"

Astrolabe's API pentest found 4 critical BOLA vulnerabilities in our order management APIs that had been live in production for over 8 months. The live dashboard and direct communication with the pentester made remediation incredibly fast.

JT
Jake Thompson
Lead Developer, E-Commerce
FAQ

Frequently asked questions

Our API pentest includes 150+ manual tests performed by certified pentesters (OSCP, CREST, CEH) covering OWASP API Top 10, injection attacks, BOLA, BFLA, authentication flaws, business logic vulnerabilities, and rate limiting bypasses. This is combined with 15,000+ automated DAST tests, a live reporting dashboard, direct pentester communication, free retests, and a verifiable API pentest certificate upon remediation.
A standard API pentest engagement takes 10–14 business days, including automated scanning, manual testing, report generation, and fix verification through retests. Timeline varies based on the number of endpoints, API complexity, and authentication flows. We'll scope the exact timeline before starting.
We test REST APIs, GraphQL APIs, SOAP web services, gRPC interfaces, and WebSocket connections. We accept OpenAPI/Swagger specs, Postman collections, HAR files, or we can discover endpoints via live traffic analysis. We test authenticated and unauthenticated flows, including TOTP-based MFA.
No. Our default approach is non-disruptive — we do not perform DoS or load testing. We recommend testing against a staging environment that mirrors production. If production testing is required, we schedule tests during off-peak hours and agree on intensity controls. Rules of engagement are defined before any testing begins.
Yes. Astrolabe's platform lets you request individual vulnerability rescans directly from the dashboard after applying fixes — without waiting for a new engagement or paying extra. Two full rescans by our pentesters are also included in PTaaS plans to validate all fixes comprehensively.
Yes. Our API pentest reports are accepted by auditors for SOC 2 Type II, PCI-DSS (Requirement 6.4), HIPAA, ISO 27001, and GDPR Article 32 compliance. Once all findings are remediated and retested, we issue a publicly verifiable API pentest certificate that can be shared with customers, partners, and auditors.
🔌 API Pentest GET /api/orders/{"{"}id{"}"} → BOLA FOUND CRIT: 4 HIGH: 9 Fixed: 12 ✓
Still have questions?

Book a free 30-min API security consultation. Our certified pentesters will answer every question.

Talk to an API Pentester →
Complete API Pentest

Ready to secure your APIs
against real attackers?

Get a comprehensive API penetration test from certified pentesters. Live dashboard, direct communication, free retests, and a verifiable certificate on completion.

Get API Pentest Quote → Schedule a Demo ›

✓ 150+ manual tests · ✓ OWASP API Top 10 · ✓ Zero false positives · ✓ Verifiable certificate