ToolAssay

Call when an agent needs the storage word at a slot for one Base contract

Call when an agent needs the storage word at a slot for one Base contract. Send contract, slot, and an optional block tag. Read-only eth_getStorageAt. No spend. Send JSON {"contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","slot":"0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-storage first.

Not tested: has real-world effectsour last check, 2026-10-19
0 of 0checks answered this week
n/amedian answer time
$0.002listed 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-storage

CategoryCode and developer
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": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
  },
  "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": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
            }
          ],
          "properties": {
            "block": {
              "description": "Optional block number or tag latest, finalized, or safe. Example: latest. Omit it for latest. A JSON number such as 100 is accepted.",
              "type": "string"
            },
            "contract": {
              "description": "Contract on Base mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. eth_getStorageAt is read-only.",
              "examples": [
                "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              ],
              "type": "string"
            },
            "slot": {
              "description": "Storage slot as a uint256 decimal or 0x-prefixed hex word of at most 32 bytes. Example: 0. The response value is 32 bytes.",
              "examples": [
                "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
              ],
              "type": "string"
            }
          },
          "required": [
            "contract",
            "slot"
          ],
          "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,
              "block": "latest",
              "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "network": "eip155:8453",
              "ok": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
              "value": "0x0000000000000000000000000000000000000000000000000000000000000000",
              "warnings": []
            }
          ],
          "properties": {
            "billed": {
              "examples": [
                true
              ],
              "type": "boolean"
            },
            "block": {
              "examples": [
                "latest"
              ],
              "type": "string"
            },
            "contract": {
              "examples": [
                "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              ],
              "type": "string"
            },
            "network": {
              "const": "eip155:8453",
              "examples": [
                "eip155:8453"
              ],
              "type": "string"
            },
            "ok": {
              "const": true,
              "examples": [
                true
              ],
              "type": "boolean"
            },
            "receipt_id": {
              "examples": [
                "rcpt_01EXAMPLE000000000000000"
              ],
              "type": "string"
            },
            "slot": {
              "examples": [
                "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc"
              ],
              "type": "string"
            },
            "value": {
              "examples": [
                "0x0000000000000000000000000000000000000000000000000000000000000000"
              ],
              "type": "string"
            },
            "warnings": {
              "default": [],
              "examples": [
                []
              ],
              "items": {
                "type": "string"
              },
              "type": "array"
            }
          },
          "required": [
            "ok",
            "receipt_id",
            "billed",
            "network",
            "contract",
            "slot",
            "block",
            "value"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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