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modelprices.xyz LLM Price-Change Alert Feed
x402
modelprices.xyz LLM Price-Change Alert Feed is a paid API for AI agents from modelprices.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Returns a structured JSON feed of recent AI model pricing changes — old vs new token cost, percent delta, timestamps, plus newly launched and removed models — diffed from hourly snapshots across all major providers.
Price / call$0.03
Success—
StatusUnknown
How this service works
LLM price-change alert feed: track when OpenAI, Anthropic, Google or any AI provider reprices GPT, Claude, Gemini or any model's inference cost per token — old vs new price, percent delta, when it happened, plus newly launched and removed models. Structured JSON diffed from hourly snapshots; ideal for cost monitoring, repricing triggers, and AI market intelligence.
Output
A structured JSON array of pricing change events, each containing model ID, provider, old and new per-token costs, percent delta, timestamp of change, plus lists of newly launched and removed models detected since the last hourly snapshot.
Example use cases
Example prompt
“Can you pull the latest LLM price changes from modelprices.xyz and tell me which AI models from OpenAI, Anthropic, or Google have been repriced recently — including the old price, new price, and percent change?”
Technical details
Endpoint
GEThttps://modelprices.xyz/llm/price-changesWhen to prefer
Use this endpoint when you need to reactively detect and respond to AI inference pricing changes across providers — ideal for cost monitoring dashboards, automated repricing triggers, budget alerts, or AI market intelligence workflows. Prefer this over the static price table endpoint when the delta and timing of changes matter, not just current prices.
Side effects
- No recent price changes found — returns empty array if no repricing events occurred in the monitored window
- Rate limit or payment failure — 402 Payment Required if x402 payment header is missing or insufficient
- Provider data temporarily unavailable — snapshot diffing may lag if upstream provider pricing pages are inaccessible
- Model ID not recognized — if a specific model filter is applied, unknown IDs may return empty results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"models": [
{
"id": "claude-sonnet-5",
"provider": "anthropic",
"input_per_mtok": 3,
"output_per_mtok": 15
}
],
"model_count": 2164,
"generated_at": "2026-07-14T02:00:00.000Z",
"provider_count": 72
}
}Tags
x402
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