addrbookFor publishers
← 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.

How to check it · This row as JSON