Adding Anthropic API to your Codex CLI app? Let us review it.
Expert review for Anthropic API integrations built with Codex CLI. We fix Codex CLI-generated Anthropic API code for security, error handling & production readiness. From $19.
Common Codex CLI issues affecting integrations
API keys and secrets written directly into generated source files
Codex CLI generates code with placeholder credentials that developers often replace with real values inline, leaving secrets committed to version control. There is no .env scaffolding or secret management setup by default.
No authentication or authorization on generated API endpoints
When Codex generates Express or FastAPI backends, routes are created without middleware for authentication, meaning every endpoint is publicly accessible immediately after deployment.
Single-file output breaks apart for any real project structure
Codex frequently outputs all logic into one or two files rather than organizing code into modules, services, and utilities — making the result hard to maintain and extend as the codebase grows.
Anthropic API issues we find in Codex CLI apps
Using completions API format instead of Messages API
AI tools generate code using the deprecated completions format (prompt with Human:/Assistant: turns) instead of the Messages API with its role-based message array.
API key exposed in browser environment
Generated code sends requests to the Anthropic API directly from the client, exposing the API key and violating Anthropic's terms of service.
Tool use response parsing not implemented
AI tools set up tool definitions but don't parse tool_use content blocks in the response or handle the stop_reason: 'tool_use' flow correctly.
Start with a self-serve audit
Get a professional review of your Anthropic API integration at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you review my Codex CLI-built Anthropic API integration?
Yes. We regularly audit Anthropic API integrations in Codex CLI-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Anthropic API issues does Codex CLI typically create?
Common issues in Codex CLI-generated Anthropic API code include: using completions api format instead of messages api, api key exposed in browser environment, tool use response parsing not implemented. We fix all of these in our code review.
How much does it cost to fix my Anthropic API integration?
Start with our code audit ($19) to get a complete list of Anthropic API issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What Anthropic API best practices does Codex CLI typically miss?
AI tools often skip webhook signature verification, proper error handling for API failures, retry logic with exponential backoff, and secure token storage for Anthropic API. Our review checks all of these and provides specific fixes.
Related resources
More Codex CLI Integrations
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