Data directories
AI developer data directories
29 dated, primary-sourced directories for developers building with AI models and coding agents: prices, limits, capabilities, shutdown dates, local models, CLI flags, MCP support and API errors. Every record links to the first-party page it came from, and each directory shows the date it was last verified.
Models and APIs
14 directoriesHosted model prices, specs, limits, benchmarks and shutdown dates, plus how each API behaves.
- ModelsAPI prices and specs167 models
- Model API capabilitiesTool calling, structured outputs, vision, caching, batch and reasoning per model, with sources7 capabilities
- AI model context windowsContext window and max output for every model, largest first, with long-context price thresholds and multipliers
- AI model knowledge cutoff datesProvider-stated knowledge cutoffs with release dates, the gap between them and sources66 stated cutoffs
- Free LLM API tiersWhich LLM APIs have a standing free tier, credits or none, with free limits, card rules and whether each trains on your data, quoted from the provider's terms17 providers
- AI API data retention and residencyHow long 18 AI API providers keep your prompts, whether they train on them, who offers zero data retention and which regions they process in, with verbatim quotes18 providers
- Best models by use caseModels ranked by one named, dated benchmark per use case6 use cases
- Embedding modelsDimensions, max input and price per 1M tokens59 models
- Model release timelineEvery dated API model release
- BenchmarksSourced leaderboards16 benchmarks
- Rate limitsLimits by provider and tier19 providers and plans
- DeprecationsModel shutdown dates11 providers
- OpenAI-compatible and Anthropic-compatible API endpointsBase URLs, endpoints, auth and documented limitations of the OpenAI-compatible and Anthropic-compatible layers per AI API provider, from official docs20 providers
- AI API error referenceDocumented error codes for 12 AI API providers with causes, fixes and retry guidance204 errors
Local and open weights
4 directoriesOpen-weight models, the runtimes that serve them, the hardware they fit on and the licenses they ship under.
- Local modelsRun open weights yourself63 models
- Local LLM runtimesOllama, LM Studio, llama.cpp, vLLM and more compared feature by feature12 runtimes
- Local LLM hardwareWhich open-weight models fit in the memory of 33 NVIDIA, AMD and Apple GPUs and Macs, with vendor specs33 devices
- Open-weight model licensesWhich open-weight LLMs allow commercial use: thresholds, attribution, naming rules, output restrictions and gating, with verbatim license quotes11 models
Coding agents and tools
8 directoriesSetup steps, error fixes, CLI flags, instruction files, official SDKs, agent frameworks and MCP.
- Setup guidesModels in your coding tools125 guides
- Error fixesCoding agent errors, solved132 errors
- CLI referenceAgent flags and commands8 CLIs
- Coding agent instruction files matrixWhich coding agents read CLAUDE.md, AGENTS.md, GEMINI.md and rules directories, with user-level files, nesting and imports14 agents
- Official AI API SDKs by languageWhich AI API providers ship an official SDK for Python, TypeScript, Go, Java, C#, Ruby, PHP, Rust, Swift and Kotlin, with package names and install commands19 providers
- AI agent frameworksLangGraph, CrewAI, OpenAI Agents SDK, Google ADK and more: languages, versions, MCP, durable execution and other documented features16 frameworks
- MCP serversOfficial servers, verified
- MCP client support matrixWhich apps support MCP tools, resources, prompts, sampling, elicitation, transports and OAuth24 clients
Comparisons and terms
3 directoriesHead-to-head comparisons of tools and models, and the vocabulary behind them.
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