Read one 32-byte storage slot from a contract, the raw state under whatever the
Read one 32-byte storage slot from a contract, the raw state under whatever the source code calls it. Returns the word as hex plus three readings of the same bytes - unsigned integer, address (low 20 bytes) and boolean - because a slot is untyped on chain and only the caller knows which it meant. Useful for proxy implementation slots, paused flags and any value the ABI does not expose. EVM chains: ethereum, base, polygon, arbitrum, optimism.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
923 msmedian answer time
$0.001listed price per call
$0.001price 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
GET https://agent402.tools/api/chain/storage
| Category | Code and developer |
|---|---|
| Provider host | agent402.tools |
| Networks | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, eip155:137, eip155:143, eip155:42161, eip155:42220, eip155:43114, eip155:4663, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet |
| Payment schemes | exact, upto |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.001 | 923 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "base",
"slot": "0x0"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "0x contract address",
"type": "string"
},
"block": {
"description": "latest (default), pending, earliest, safe, finalized, or a block number",
"type": "string"
},
"network": {
"description": "ethereum | base | polygon | arbitrum | optimism (default base)",
"type": "string"
},
"slot": {
"description": "Slot index: a decimal number or a 0x-prefixed hex key (EIP-1967 implementation slot is 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc)",
"type": "string"
}
},
"required": [
"address",
"slot"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"type": "string"
},
"asAddress": {
"type": "string"
},
"asBool": {
"type": "boolean"
},
"asUint": {
"type": "string"
},
"block": {
"type": "string"
},
"network": {
"type": "string"
},
"slot": {
"type": "string"
},
"value": {
"type": "string"
}
},
"required": [
"address",
"network",
"slot",
"block",
"value",
"asUint",
"asAddress",
"asBool"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}