Marketplace · API · x402

api.annalist.dev/v1/ai/prices

AI model prices per million tokens (input, output, cache, batch) with context window, for about 4,000 models across providers. With model=: its price history and the same model on other providers. Without: a list filtered by provider, mode, min_context and max_input price, sorted by input, output or context. History from January 2026. Source: LiteLLM's open price file (MIT). Signed.

Endpointhttps://api.annalist.dev/v1/ai/prices
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xDE4805678438b6bfBbFE047fFF305C928653Fe17
methodGET
last updated2026-11-09T12:00:59.542Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.annalist.dev/v1/ai/prices
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e7d8eb82d77e4e43

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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