AccountStorages

Storage Map v210 → v411 Changed in v411

Per-contract storage slots (key-value pairs).

Queried by: developersanalytics

The Big Picture

Smart contract state - variables, mappings, arrays - all live here. Each contract has its own storage namespace identified by 256-bit slots. This is the persistent memory of the EVM.

Use Cases

Read contract state
Debug contract storage
Build storage explorers
Verify contract state transitions

Purpose & Usage

Purpose

Stores all persistent state for each smart contract.

Common Query Patterns

Query by (contract address, storage slot)
Iterate contract storage

Query Keys

#	Name	Type	Description
1	evmAddress raw: key1	H160	key1 (H160)
2	storageKey raw: key2	H256	key2 (H256)

Stored Value

H256

value (H256)

Relationships

Modified By

call create create2

Code Examples

import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443

const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);

// Query AccountStorages storage
const key1 = "0x0000000000000000000000000000000000000000";
const key2 = "0x0000000000000000000000000000000000000000000000000000000000000000";

const result = await api.query.EVM.AccountStorages.getValue(key1, key2);
console.log("AccountStorages:", result);

Version History

Version:

v210 block 4,345,556 Added

v213–v215 · runtime versions skipped on chain (never deployed)

v216 block 4,510,996 Internal re-bind

v220–v232 · runtime versions skipped on chain (never deployed)

v233 block 4,920,350 Internal re-bind

v235–v237 · runtime versions skipped on chain (never deployed)

v238 block 4,936,550 Internal re-bind

v253–v256 · runtime versions skipped on chain (never deployed)

v257 block 5,228,683 Internal re-bind

v259–v260 · runtime versions skipped on chain (never deployed)

v261 block 5,328,895 Internal re-bind

v266–v272 · runtime versions skipped on chain (never deployed)

v273 block 5,659,032 Internal re-bind

v275–v275 · runtime versions skipped on chain (never deployed)

v276 block 5,781,672 Internal re-bind

v278–v289 · runtime versions skipped on chain (never deployed)

v290 block 5,947,548 Internal re-bind

v293–v296 · runtime versions skipped on chain (never deployed)

v297 block 6,067,943 Internal re-bind

v299–v300 · runtime versions skipped on chain (never deployed)

v301 block 6,205,194 Internal re-bind

v316–v319 · runtime versions skipped on chain (never deployed)

v320 block 6,523,566 Internal re-bind

v324–v325 · runtime versions skipped on chain (never deployed)

v326 block 6,608,228 Internal re-bind

v327–v333 · runtime versions skipped on chain (never deployed)

v334 block 6,811,690 Internal re-bind

v353–v360 · runtime versions skipped on chain (never deployed)

v361 block 7,063,679 Internal re-bind

v363–v364 · runtime versions skipped on chain (never deployed)

v365 block 7,135,419 Internal re-bind

v378–v384 · runtime versions skipped on chain (never deployed)

v385 block 7,782,670 Internal re-bind

v386–v390 · runtime versions skipped on chain (never deployed)

v391 block 7,782,857 Internal re-bind

v394–v400 · runtime versions skipped on chain (never deployed)

v401 block 8,036,576 Internal re-bind

v403–v410 · runtime versions skipped on chain (never deployed)

v411 block 8,283,784 Internal re-bind Current

Runtime Info

Pallet: EVM
Storage Kind: Map
First Version: v210
Current Version: v411

Back to EVM Storage