Free 30-min Web3 Consultation
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Smart Contract Security Audits
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Custom DeFi Protocol Development
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Full-Stack Web3 dApp Development
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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

API Security & Penetration Testing

Secure your blockchain infrastructure's critical entry points. Our expert-led penetration testing identifies and remediates vulnerabilities in your APIs, smart contract interfaces, and RPC endpoints before they are exploited.
Chainscore © 2026
overview
CORE INFRASTRUCTURE

Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts to power your protocol.

We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our development process ensures gas optimization, comprehensive security audits, and adherence to standards like ERC-20, ERC-721, and ERC-1155.

  • Security-First Development: Built with Solidity 0.8+ and OpenZeppelin libraries, followed by multi-stage audits.
  • Full-Stack Integration: Contracts are designed to work seamlessly with your frontend, indexers, and oracles.
  • Deployment & Management: We handle mainnet deployment, verification, and provide upgrade patterns for future iterations.

Deliver a battle-tested, audited contract suite in as little as 4 weeks, reducing your technical risk and accelerating your go-to-market timeline.

key-features-cards
PROVEN FRAMEWORK

Our API Security Testing Methodology

Our systematic, multi-layered approach uncovers critical vulnerabilities before they become exploits. We combine automated scanning with expert manual testing to secure your entire API attack surface.

01

Threat Modeling & Reconnaissance

We map your API architecture, endpoints, and data flows to identify high-risk attack vectors. This proactive scoping ensures we test the right targets, saving time and maximizing coverage.

100%
Endpoint Coverage
OWASP
Framework
02

Automated Vulnerability Scanning

Leveraging industry-leading tools, we perform comprehensive scans for OWASP Top 10 API vulnerabilities, including broken object-level authorization (BOLA) and excessive data exposure.

10K+
Tests/API
< 24 hrs
Initial Report
03

Manual Penetration Testing

Our certified security engineers conduct deep, manual exploitation to find logic flaws, business logic bypasses, and complex chained attacks that automated tools miss.

OffSec OSCP
Certified
40+ hrs
Manual Testing
04

Authentication & Authorization Testing

We rigorously test JWT/OAuth2 flows, session management, and role-based access controls (RBAC) to prevent unauthorized data access and privilege escalation.

Zero-Trust
Model Validated
100%
Auth Flow Tested
05

Business Logic & Rate Limit Testing

We simulate real-world abuse scenarios to identify flaws in transaction sequencing, financial logic, and exploit missing rate limits that could lead to fraud or DDoS.

Custom
Attack Playbooks
OWASP API8
Focus
06

Remediation Guidance & Retesting

We deliver prioritized, actionable reports with code-level fixes. Our team provides direct consultation and performs free retesting to verify all vulnerabilities are resolved.

P1-P4
Priority Ranking
Free
Verification Retest
benefits
SECURE YOUR WEB3 FOUNDATION

Why Pro-Blockchain API Security Testing is Non-Negotiable

In Web3, your APIs are the critical bridge between your smart contracts and the real world. A single vulnerability can lead to irreversible loss of funds and trust. We don't just test; we fortify your entire data pipeline.

01

Prevent Costly Exploits Before Deployment

Our proactive testing identifies critical vulnerabilities in your API endpoints and business logic before they can be exploited. We simulate real-world attack vectors to secure price oracles, transaction relayers, and user authentication flows.

Client Value: Avoid catastrophic financial losses and reputational damage from preventable hacks.

100%
Critical Issue Detection
Pre-Launch
Vulnerability Resolution
02

Ensure Uninterrupted Service & Uptime

We conduct rigorous load and stress testing on your blockchain RPC nodes, indexers, and custom APIs to ensure they handle peak traffic and avoid costly downtime during market volatility or token launches.

Client Value: Maintain 99.9%+ service availability and user trust during critical growth phases.

99.9%
Uptime SLA Target
< 50ms
P99 Latency Goal
03

Comply with Evolving Security Standards

Our audits align with OWASP API Security Top 10 and blockchain-specific frameworks. We provide actionable reports that satisfy due diligence requirements for enterprise clients, partners, and investors.

Client Value: Accelerate enterprise sales cycles and pass security reviews with certified, documented compliance.

OWASP
Compliance Framework
Detailed
Audit Report
04

Secure Your Data Integrity & Privacy

We test for data leakage, improper access controls, and manipulation risks in your APIs handling sensitive on-chain/off-chain data. This protects user assets and private information from exposure.

Client Value: Safeguard user funds and data privacy, building a foundation of trust essential for DeFi and FinTech applications.

Zero-Leak
Data Privacy Goal
Role-Based
Access Control
05

Continuous Monitoring for Emerging Threats

Security is not a one-time event. We offer ongoing monitoring and penetration testing to identify new vulnerabilities introduced by updates, dependencies, or novel attack methods targeting Web3 infrastructure.

Client Value: Stay ahead of attackers with a proactive security posture that adapts to the evolving threat landscape.

24/7
Threat Monitoring
Regular
Follow-up Tests
06

Expertise in Blockchain-Specific Attack Vectors

Our testing goes beyond generic API security. We specialize in blockchain nuances: MEV extraction via RPC, validator manipulation, gas price oracle attacks, and smart contract callback exploits through your API layer.

Client Value: Get protection tailored to the unique risks of Web3, not just generic web security.

Web3-First
Testing Focus
MEV & RPC
Specialized Vectors
Deliverables by Engagement Tier

API Security & Penetration Testing Scope

A detailed breakdown of our testing methodology, deliverables, and support levels to secure your Web3 application's API layer.

Testing ComponentStandard AuditAdvanced Penetration TestEnterprise Security Suite

OWASP API Top 10 Coverage

Custom Business Logic Testing

Limited

Comprehensive

Comprehensive + Threat Modeling

Authentication & Authorization Flaws

Rate Limiting & DoS Resilience

Blockchain-Specific Tests (Gas, Re-orgs)

Detailed Technical Report

Remediation Guidance & Consultation

Report Only

2 Sessions

Unlimited During Engagement

Retest & Verification

1 Round

Multiple Rounds

Executive Summary for Leadership

Response Time SLA for Critical Findings

72h

24h

4h

Typical Engagement Timeline

1-2 Weeks

2-4 Weeks

4+ Weeks

Starting Price

$8,000

$25,000

Custom Quote

process-walkthrough
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built to your exact specifications.

We architect and deploy custom Solidity/Rust smart contracts that are secure by design. Every contract undergoes a multi-layered audit process, including automated analysis with Slither/MythX and manual review by our senior security engineers. We deliver fully tested, gas-optimized code with comprehensive documentation.

Reduce your time-to-market from months to weeks with our battle-tested development framework.

  • Custom Logic: DeFi primitives (AMMs, lending/borrowing), NFT collections (ERC-721A), DAO governance, and bespoke business logic.
  • Security First: Implementation of OpenZeppelin standards, formal verification for critical functions, and post-deployment monitoring.
  • Full Lifecycle: From initial design and development to deployment on EVM/Solana mainnets and ongoing upgrade management.
For CTOs & Security Leads

API Security & Penetration Testing FAQs

Answers to common questions about our security assessment methodology, timeline, and deliverables for Web3 APIs and smart contract systems.

We employ a hybrid methodology combining automated scanning with deep manual penetration testing, specifically tailored for blockchain applications. Our process follows the OWASP API Security Top 10 and OWASP Web3 Security Verification Standard (WVS). We simulate real-world attack vectors like transaction replay, gas griefing, signature malleability, and oracle manipulation. Every engagement includes a threat model review, active testing, and a final report with risk-prioritized findings and actionable remediation steps.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team