flatkey.ai Blog
Insights, product notes, and implementation guides for teams building on AI APIs.
AI Gateway Architecture
Latest articles in AI Gateway Architecture.
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Latest articles in Base URL and SDK Migration.
Read moreCost, Billing, and Ops
Latest articles in Cost, Billing, and Ops.
Read moreEnterprise Controls and Trust
Latest articles in Enterprise Controls and Trust.
Read moreGateway Comparisons
Latest articles in Gateway Comparisons.
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Latest articles in Model and Modality Playbooks.
Read moreReliability and Routing
Latest articles in Reliability and Routing.
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AI API Rate Limit Handling: Backoff, Queue, Fallback, or Fail Closed
A production checklist for handling AI API rate limits with Retry-After, jittered backoff, queueing, fallback contracts, fail-closed stops, and observability.

AI API Timeout Strategy: Connect, Read, Stream, and Queue Budgets
Set production AI API timeout budgets for connect, read, stream, queue, retry, fallback, and observability before incidents become expensive.

AI Agent Gateway Controls: Tool Use, Budgets, Logs, and Stop Conditions
Use AI agent gateway controls to govern tool access, budgets, request logs, fallback behavior, and stop conditions before agents reach production.

Context Window Routing: Pick Models by Prompt Size Without Losing Cost Control
Use context window routing to choose retrieval, compaction, caching, or long-context models by prompt size while keeping AI gateway costs reviewable.

Model Routing Policy Design: Match Model, Cost, Latency, and Risk to Each Workflow
Design a model routing policy that maps AI workflows to model routes, fallback rules, cost ceilings, latency SLOs, risk gates, and evidence checks.

OpenRouter vs LiteLLM vs Flatkey: Hosted Router, Self-Hosted Proxy, or One-Key Gateway
Compare OpenRouter, LiteLLM, and Flatkey by account ownership, billing, BYOK, logs, quotas, fallback behavior, migration effort, and proof checks.

Multi-Provider LLM Router Comparison: Billing, Logs, Quotas, and Fallbacks
Compare multi-provider LLM router options by account ownership, billing, request logs, quotas, fallback behavior, migration proof, and Flatkey fit.

AI API Gateway vs API Management: What Changes for Model Traffic
Compare AI API gateway vs API management for model traffic across routing, logs, quotas, billing, migration, account ownership, and Flatkey fit.

Direct Provider Accounts vs AI API Gateway: Account, Key, and Invoice Sprawl
Compare direct provider accounts vs AI API gateway across account ownership, API keys, invoices, routing, usage logs, quotas, and Flatkey fit.

Managed AI API Gateway vs Self-Hosted LLM Proxy: Cost, Control, and Ops Tradeoffs
Compare managed AI API gateway and self-hosted LLM proxy tradeoffs by cost, control, routing, billing, logs, quotas, and operations.

Vercel AI Gateway Alternative: Evaluation Criteria for Teams That Need One Key
Compare Vercel AI Gateway alternative criteria by account ownership, billing, routing, logs, budgets, BYOK, migration effort, and Flatkey fit.

APIPark Alternative for AI API Gateways: Hosted Router vs API Management
Compare APIPark alternative options by provider access, API keys, routing, logs, billing, quotas, migration effort, and Flatkey fit.

Kong AI Gateway Alternative: When Routing Needs Billing and Quotas Too
Compare Kong AI Gateway alternative options by model routing, billing, quotas, logs, metering, migration effort, and Flatkey fit.

Vercel AI SDK custom provider base URL: Flatkey Setup Notes
Set a Vercel AI SDK custom provider base URL for Flatkey with provider setup, model aliases, streaming checks, tool checks, usage proof, and rollback.
Portkey Alternative for AI API Gateway Buyers: What to Compare
Compare Portkey alternative options by operating model: account ownership, billing, routing proof, logs, quotas, migration effort, procurement evidence, and Flatkey fit.
Open WebUI OpenAI API base URL: Flatkey Setup Guide
Configure Open WebUI with Flatkey as an OpenAI-compatible router: base URL, API key, model filters, curl preflights, streaming checks, and usage review.

Continue.dev OpenAI compatible provider: Flatkey Setup Guide
Set up Continue.dev with Flatkey as an OpenAI-compatible provider: config.yaml, apiBase, model aliases, roles, tool-use checks, endpoint fallback, and usage review.

Roo Code OpenAI compatible API: Flatkey Setup Guide
If you still maintain Roo Code installs, the Roo Code OpenAI compatible API route is mostly a configuration surface: provider type, Base URL, API key, and Model ID. The production risk is the part that is easy to miss. Roo Code's provider docs require native O
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