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mirrored listing x402 eip155:8453

Single-model capability lookup: context window size, max output tokens, and vision/audio/f

Single-model capability lookup: context window size, max output tokens, and vision/audio/function-calling/reasoning support for one AI model by id. Answers 'can this model handle my task?' in one $0.003 call.

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3000 (raw units)
price
1
calls / 30d
1
unique payers
2026-08-29
updated

Provider

modelprices.xyz · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x63a20fa244d3E6a8902121E99704b7F857dc6EBB",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "pathParams": {
          "model": "gpt-5"
        },
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "matched_id": "gemini-3-pro",
          "model": {
            "context_window": 2000000,
            "id": "gemini-3-pro",
            "max_output_tokens": 65536,
            "supports_vision": true
          }
        },
        "type": "json"
      }
    },
    "routeTemplate": "/llm/limit/:model",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "properties": {
                "model": {
                  "description": "Model id or suffix",
                  "type": "string"
                }
              },
              "required": [
                "model"
              ],
              "type": "object"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "builder-code": {
    "info": {
      "a": "modelprices"
    },
    "schema": {
      "$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"
    }
  }
}

Use it

curl

curl "https://modelprices.xyz/llm/limit/:model"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://modelprices.xyz/llm/limit/:model");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://modelprices.xyz/llm/limit/:model")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/10942.json, and this resource appears in /discovery/resources and /discovery/search.