API v1

Free market data, in JSON

Static JSON endpoints. CORS open, no key required. Prices in USD / 1M tokens; every datapoint carries an evidence tier.

CORS openNo keyUpdated hourlyFree · attribution required

Endpoints

GET/api/v1/rankings.json

Model rankings (top 60): best provider price, provider count, TTFT / TPS / uptime, 7-day price history.

GET/api/v1/indices.json

Index family: TTPI token price index + GPU spot rates (international & domestic).

GET/api/v1/meta.json

Generation timestamp, coverage counts (models / providers / offers), source status.

GET/api/v1/models/{id}.json

Every provider offer for one model. {id} is the id field from rankings, e.g. deepseek-v4-flash.

GET/api/v1/aggregators.json

Router/aggregator board (45 tracked): tier, measured coverage, markup vs list, uptime, evidence.

GET/api/v1/providers.json

Provider trust board: coverage, cheapest-wins, uptime/latency medians, precision floor.

GET/api/v1/changes.json

24h price-change events (>2% day-over-day, per-model cheapest blended).

GET/api/v1/trending.json

Top movers (30d) and trending apps.

GET/api/v1/apps.json

Apps & agents token-usage board (attributed to OpenRouter).

GET/api/v1/gpu-clouds.json

GPU cloud supplier price table (curated + Vast live).

GET/api/v1/history/ttpi.json

TTPI daily history (30d window).

GET/api/v1/history/gpu.json

GPU price daily history by source|card (30d window).

GET/api/v1/openapi.json

Machine-readable OpenAPI 3.1 contract for everything above.

Routers: want your metrics in here? See the TKX Standard — implement once, verified hourly.

officialVendor official pricebook (LiteLLM, MIT). Updated daily.

apiPulled live from a provider/aggregator public API.

probeMeasured by TKX's own probe (in progress).

Free to use. Attribution required: Data by TKX (https://tkx.org) Commercial and high-volume access on request.