# apilong

> apilong — independent, machine-readable measurements of developer API pricing, latency & reliability. All data is public, from daily snapshots, and verifiable (backtestable) against source feeds.

## Categories
- [LLM text](/c/llm): Text generation & reasoning model pricing and performance (627 rows)
- [Image](/c/llm): Image generation & editing model pricing and performance (38 rows)
- [Video](/c/llm): Video generation & editing model pricing and performance (29 rows)
- [Audio](/c/llm): Speech, TTS & music model pricing and performance (25 rows)
- [Embedding](/c/llm): Embedding, rerank & vision model pricing and performance (8 rows)
- [Financial & News APIs](/c/finance): Market data, quotes & news feeds. (23 rows)
- [Email Verification](/c/email-verification): Deliverability & accuracy testing. (7 rows)
- [IP Intelligence](/c/ip-intelligence): Geolocation, proxy & abuse detection. (32 rows)
- [On-chain Data](/c/on-chain): Blockchain RPC & indexer services. (17 rows)
- [Cloud & Storage](/c/cloud): Compute, object storage & cloud pricing. (62 rows)
- [Domain Providers](/c/domain): Registration & renewal pricing. (3 rows)
- [CDN & DNS](/c/cdn): Edge delivery & resolution. (4 rows)
- [Academic Research](/c/academic): Papers, citations & scholarly metadata. (4 rows)
- [Legal & Regulatory](/c/legal): Court records & legislation. (1 rows)
- [Global Institutions](/c/institutions): World Bank, IMF & SEC filings. (2 rows)

## Data feeds (machine-readable)
- [prices.json](/api/prices.json): daily price snapshots (1345 records)
- [measurements.json](/api/measurements.json): endpoint latency & availability probes (20 records)
- [open_data.json](/api/open_data.json): open-data coverage quality (8 records)
- [score.json](/api/score.json): accuracy evaluation results (8 records)
- [heat.json](/api/heat.json): model popularity heat (weighted percentile, OpenRouter/HF/Replicate) (703 records)
- [elo.json](/api/elo.json): third-party model ELO rankings (arena.ai snapshot) (390 records)

## Usage
- All figures are computed from public snapshots; every ranking is reproducible from the linked feed.
- No investment advice. Independently measured public data only.