API Integration Fixes & Troubleshooting Services

Yes. We can work inside an existing or inherited codebase after reviewing the relevant architecture, dependencies, integration contract and access available. Poor documentation or unknown legacy behaviour may require a paid discovery first. 

Yes. We can diagnose request and model issues, authentication, rate limits, timeouts, streaming, tool or function calling, structured output, context and retrieval, webhooks, background workflows and provider-API migrations. We will also identify issues that require an account or provider-side change rather than code. 

Yes. We can review Anthropic Claude and Google Gemini integrations, including request formats, SDK use, authentication, tools or function calling, streaming, multimodal workflows, rate limits, timeouts and application-side validation. 

Yes. We investigate keys or tokens, OAuth scopes and redirects, signatures, timestamps, tenant or role permissions, refresh flows and environment configuration. A 401 or 403 can also come from provider account restrictions, which may require client action. 

Often, yes. Depending on the provider and workload, the solution may involve request control, exponential backoff, bounded retries, queueing, caching, batching, lower concurrency, usage-tier changes or a product fallback. Increasing provider limits is not always within the application's control. 

Yes. We can inspect endpoint reachability, signature verification, payload parsing, event selection, acknowledgement timing, retries, duplicate events, ordering, idempotency and application logging. Provider delivery logs and sandbox access help diagnosis. 

Many isolated and reproducible issues can be completed within one business day after access and scope confirmation. Multi-system failures, provider migrations, security incidents, data correction and undocumented legacy workflows require a custom estimate. 

Start with sanitized errors, provider documentation and reproduction steps. We may then request repository, staging, provider sandbox or hosting access through a secure method. We prefer least-privilege, time-limited access and avoid production access unless it is necessary. 

Not through the public form or ordinary email. Many issues can begin with sanitized logs and test results. When credentials are required, use a secure, approved sharing method and provide a limited test or sandbox key whenever possible. 

Every package includes focused testing of the affected request or workflow. Related failure cases and regression checks are included according to the approved scope. A full application or provider certification test is separate unless explicitly included. 

Data investigation and reconciliation can be scoped separately, but recovery depends on backups, provider records, audit logs and the extent of corruption. Do not continue automatic retries or manual edits until the risk is understood. 

We will identify the evidence and explain what can be changed in the application. Provider outages, account restrictions, unavailable models, approval delays and external defects may require a support case or client action and cannot be guaranteed by iTechOza. 

A clearly defined isolated issue can use a fixed-scope package after review. Cross-system, legacy, security-related or intermittent failures receive a custom estimate based on diagnosis, access, effort and risk. 

Yes. If repair is not the best long-term option, we can scope a replacement or modernization through our separate API Development & AI Integration service. We will explain why a rebuild is recommended before expanding the work. 

Yes. After stabilization, we can propose a defined maintenance agreement for provider changes, monitoring reviews, bug fixes, minor improvements and planned migrations. 24/7 incident response is not included unless separately contracted.