ToolAssay

Call when an agent needs parsed ERC-721 metadata for a Base contract and token i

Call when an agent needs parsed ERC-721 metadata for a Base contract and token id. tokenURI is fetched only from fixed IPFS and Arweave gateways. The image field is rewritten to that gateway. A missing token or non-JSON document errors. No arbitrary URL. Send JSON {"contract":"0x1111111111111111111111111111111111111111","token_id":"1"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/base-nft-metadata first.

Not tested: has real-world effectsour last check, 2026-10-19
0 of 0checks answered this week
n/amedian answer time
$0.005listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://agentshelf.syntexa.ch/v1/base-nft-metadata

CategoryImage and media
Provider hostagentshelf.syntexa.ch
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "contract": "0x1111111111111111111111111111111111111111",
    "token_id": "1"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "examples": [
            {
              "contract": "0x1111111111111111111111111111111111111111",
              "token_id": "1"
            }
          ],
          "properties": {
            "contract": {
              "description": "ERC-721 contract on Base. Example: 0x1111111111111111111111111111111111111111. tokenURI is read-only.",
              "examples": [
                "0x1111111111111111111111111111111111111111"
              ],
              "type": "string"
            },
            "token_id": {
              "description": "ERC-721 token id as a decimal integer. Example: 1. A JSON number is accepted when it is a safe integer. A missing token errors.",
              "examples": [
                "1"
              ],
              "pattern": "^(0|[1-9]\\d*)$",
              "type": "string"
            }
          },
          "required": [
            "contract",
            "token_id"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "additionalProperties": false,
          "examples": [
            {
              "billed": true,
              "contract": "0x1111111111111111111111111111111111111111",
              "image": "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG",
              "metadata": {
                "image": "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG",
                "name": "Example"
              },
              "network": "eip155:8453",
              "ok": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "source": "ipfs",
              "token_id": "1",
              "token_uri": "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG",
              "warnings": []
            }
          ],
          "properties": {
            "billed": {
              "examples": [
                true
              ],
              "type": "boolean"
            },
            "contract": {
              "examples": [
                "0x1111111111111111111111111111111111111111"
              ],
              "type": "string"
            },
            "image": {
              "examples": [
                "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG"
              ],
              "type": [
                "string",
                "null"
              ]
            },
            "metadata": {
              "additionalProperties": {},
              "examples": [
                {
                  "image": "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG",
                  "name": "Example"
                }
              ],
              "type": "object"
            },
            "network": {
              "const": "eip155:8453",
              "examples": [
                "eip155:8453"
              ],
              "type": "string"
            },
            "ok": {
              "const": true,
              "examples": [
                true
              ],
              "type": "boolean"
            },
            "receipt_id": {
              "examples": [
                "rcpt_01EXAMPLE000000000000000"
              ],
              "type": "string"
            },
            "source": {
              "enum": [
                "ipfs",
                "arweave",
                "data"
              ],
              "examples": [
                "ipfs"
              ],
              "type": "string"
            },
            "token_id": {
              "examples": [
                "1"
              ],
              "type": "string"
            },
            "token_uri": {
              "examples": [
                "https://ipfs.io/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG"
              ],
              "type": [
                "string",
                "null"
              ]
            },
            "warnings": {
              "default": [],
              "examples": [
                []
              ],
              "items": {
                "type": "string"
              },
              "type": "array"
            }
          },
          "required": [
            "ok",
            "receipt_id",
            "billed",
            "network",
            "contract",
            "token_id",
            "source",
            "token_uri",
            "image",
            "metadata"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

This page as JSON