← The evidence ledger
Evidence row 38306
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://modelprices.xyz/llm/cheapest
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f0d62d1470b0a241a4a9e32e7c7e2e6546d78f2a553fe8b5e8c49761ef0db1bc
- Leaf
- 0x78fc9d778f861f3155fba2ca8e54083f51fe912817123be27f312666ad181c4c
What was observed
{
"endpoints": [
[
"x402",
"https://modelprices.xyz/llm/cheapest"
]
],
"name": "modelprices.xyz/llm/cheapest",
"owner_address": "0x63a20fa244d3e6a8902121e99704b7f857dc6ebb",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x63a20fa244d3E6a8902121E99704b7F857dc6EBB",
"scheme": "exact"
}
],
"description": "Cheapest-model query: returns the lowest-cost AI models matching your constraints — min_context (tokens), vision/function_calling/reasoning (true), max_input_per_mtok (USD cap), limit (default 5). Add expected_input/expected_output token counts to rank by blended USD per request instead of input price; exclude_preview=true skips pre-release models. Answers 'what is the cheapest model that can do X?' across 2,000+ models and 70+ providers.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"expected_input": 2000,
"expected_output": 500,
"limit": 3,
"min_context": 200000,
"vision": true
},
"type": "http"
},
"output": {
"example": {
"generated_at": "2026-07-14T02:00:00.000Z",
"match_count": 41,
"models": [
{
"cache_read_per_mtok": 0.3,
"confidence": "high",
"first_observed_at": "2026-07-12T18:00:00.000Z",
"id": "claude-sonnet-5",
"input_per_mtok": 3,
"output_per_mtok": 15,
"provider": "anthropic",
"source_url": "https://docs.claude.com/en/docs/about-claude/pricing",
"usd_per_request": 0.0135
}
],
"ranked_by": "usd_per_request"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"exclude_preview": {
"description": "Exclude preview/pre-release model versions",
"type": "boolean"
},
"expected_input": {
"description": "Expected input tokens per request — with expected_output, ranks by blended USD per request instead of input price",
"type": "number"
},
"expected_output": {
"description": "Expected output tokens per request",
"type": "number"
},
"function_calling": {
"type": "boolean"
},
"limit": {
"default": 5,
"maximum": 25,
"type": "integer"
},
"max_input_per_mtok": {
"description": "Max input price in USD per 1M tokens",
"type": "number"
},
"min_context": {
"description": "Minimum context window in tokens",
"type": "integer"
},
"reasoning": {
"type": "boolean"
},
"vision": {
"type": "boolean"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "modelprices"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T11:42:01.12Z",
"quality": {
"l30DaysTotalCalls": 6,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-26T11:42:00.659Z"
},
"resource": "https://modelprices.xyz/llm/cheapest",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Cheapest-model query: returns the lowest-cost AI models matching your constraints — min_context (tokens), vision/function_calling/reasoning (true), max_input_per_mtok (USD cap), limit (default 5). Add expected_input/expected_output token counts to rank by blended USD per request instead of input price; exclude_preview=true skips pre-release models. Answers 'what is the cheapest model that can do X?' across 2,000+ models and 70+ providers."
}What the leaf hashes
{"body":"f0d62d1470b0a241a4a9e32e7c7e2e6546d78f2a553fe8b5e8c49761ef0db1bc","id":38306,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025391684285,"prev":null,"subject":"x402_bazaar:https://modelprices.xyz/llm/cheapest","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.