Migrating from Sim APIs (Sim by Dune) to Moralis

The Sim APIs (sim.dune.com) are being sunset on August 1, 2026. New signups for Sim APIs were disabled on May 18, 2026. Any production workload backed by the Sim APIs needs a replacement read layer before the cutoff — this page maps the Sim APIs surface to Moralis endpoint-by-endpoint so the swap is a search-and-replace in most cases.

The Sim APIs and Moralis cover the same wallet-centric problem space: real-time balances, activity, NFTs, DeFi positions, token metadata, and webhook subscriptions across 60+ EVM chains and Solana. Moralis is a drop-in target for the vast majority of Sim APIs usage — the field names differ, but the resource shapes line up.

Quick reference: Sim APIs → Moralis

EVM — Account data

Sim feature	Sim endpoint	Moralis equivalent
Activity (full history)	`GET /v1/evm/activity/{address}`	Wallet History
Token balances	`GET /v1/evm/balances/{address}`	Get Token Balances by Wallet
Native balance	`GET /v1/evm/balances/{address}` (native row)	Get Native Balance by Wallet
Transactions	`GET /v1/evm/transactions/{address}`	Get Wallet Transactions
Decoded transactions	`GET /v1/evm/transactions/{address}` (decoded view)	Get Decoded Wallet Transactions
Collectibles (NFTs)	`GET /v1/evm/collectibles/{address}`	Get NFTs by Wallet
NFT collections held	`GET /v1/evm/collectibles/{address}` (grouped)	Get NFT Collections by Wallet
Net worth	`GET /v1/evm/balances/{address}` (`value_usd` sum)	Get Wallet Net Worth

EVM — Token data

Sim feature	Sim endpoint	Moralis equivalent
Token info / metadata	`GET /v1/evm/token-info/{address}`	Get Token Metadata
Search tokens	`GET /v1/evm/token-search`	Search Tokens
Token holders	`GET /v1/evm/token-holders/{address}`	Get Token Holders
Holder distribution stats	(derived from holders endpoint)	Get Token Holder Stats
Holders over time	not available in Sim	Get Historical Token Holders
Stablecoin balances	`GET /v1/evm/stablecoins/{address}`	Get Token Balances by Wallet — filter on `category`

EVM — DeFi

Sim feature	Sim endpoint	Moralis equivalent
DeFi positions	`GET /v1/evm/defi/positions/{address}`	Get Wallet DeFi Positions Summary
Position details	`GET /v1/evm/defi/positions/{address}`	Get Detailed Wallet Positions
Supported protocols	`GET /v1/evm/defi/protocols`	Get DeFi Protocols by Wallet

Real-time — Webhooks → Streams

Sim feature	Sim endpoint	Moralis equivalent
Create webhook	`POST /v1/webhooks`	Create a Stream (or via the Streams dashboard)
List / get webhooks	`GET /v1/webhooks`	List Streams
Update / delete webhook	`PUT` / `DELETE /v1/webhooks/{id}`	Update / Delete Stream
Add or replace addresses	`POST /v1/webhooks/{id}/addresses`	Add Address to Stream
Balance-change events	Subscription `type: balance_change`	EVM Streams — address activity + ERC20 transfer filters
Activity / transfer events	Subscription `type: activity`	EVM Streams

Moralis Streams covers the same delivery model (HTTP webhooks with retries, signature verification, and address management) and adds richer filtering — contract events by ABI, smart-filter expressions, internal-tx visibility, and per-chain throughput tuning.

Solana (SVM)

Sim feature	Sim endpoint	Moralis equivalent
Balances	`GET /v1/svm/balances/{address}`	Get SPL Token Balances
Portfolio (with USD)	`GET /v1/svm/balances/{address}`	Get Portfolio
Native SOL balance	`GET /v1/svm/balances/{address}` (native)	Get Native Balance
Transactions / swaps	`GET /v1/svm/transactions/{address}`	Get Wallet Swaps
NFT holdings	(via balances endpoint)	Get NFTs by Wallet
Token metadata	`GET /v1/svm/token-info/{mint}`	Get Token Metadata
Real-time events	Webhooks	Solana Streams

Sim APIs endpoint details

Each section below shows the Sim APIs endpoint, the Moralis URL(s) that replace it broken out by chain, and a runnable example.

Wallet activity

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/activity/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Wallet History	`https://deep-index.moralis.io/api/v2.2/wallets/:address/history`	Documentation
Solana	Wallet Swaps	`https://solana-gateway.moralis.io/account/:network/:address/swaps`	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/evm/activity/0xd8da6bf26964af9d7eed9e03e53415d37aa96045?chain_ids=1,8453" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://deep-index.moralis.io/api/v2.2/wallets/0xd8da6bf26964af9d7eed9e03e53415d37aa96045/history?chain=eth" \
  -H "X-API-Key: $MORALIS_API_KEY"

Notes: Moralis returns a normalized, chronological feed of native transfers, ERC20 movements, NFT transfers, swaps, contract interactions, and approvals in a single call. For multi-chain rollups, call per chain in parallel or use Cross-Chain Token Balances for the balance view.

Token balances

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/balances/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get Native & ERC20 Balances	`https://deep-index.moralis.io/api/v2.2/wallets/:address/tokens`	Documentation
EVM	Get Native Balance	`https://deep-index.moralis.io/api/v2.2/:address/balance`	Documentation
Solana	Get Portfolio (native + SPL)	`https://solana-gateway.moralis.io/account/:network/:address/portfolio`	Documentation
Solana	Get SPL Token Balances	`https://solana-gateway.moralis.io/account/:network/:address/tokens`	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/evm/balances/0xd8da6bf26964af9d7eed9e03e53415d37aa96045?chain_ids=1" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://deep-index.moralis.io/api/v2.2/wallets/0xd8da6bf26964af9d7eed9e03e53415d37aa96045/tokens?chain=eth" \
  -H "X-API-Key: $MORALIS_API_KEY"

Notes: Response includes balance, decimals, USD price, USD value, and token metadata (symbol, name, logo, verified-contract flag, possible-spam flag).

Transactions

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/transactions/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get Wallet Transactions	`https://deep-index.moralis.io/api/v2.2/:address`	Documentation
EVM	Get Decoded Wallet Transactions	`https://deep-index.moralis.io/api/v2.2/wallets/:address/history`	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/evm/transactions/0xd8da6bf26964af9d7eed9e03e53415d37aa96045" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://deep-index.moralis.io/api/v2.2/0xd8da6bf26964af9d7eed9e03e53415d37aa96045?chain=eth" \
  -H "X-API-Key: $MORALIS_API_KEY"

Notes: The Moralis decoded variant returns method names, parameters, and human-readable event summaries — comparable to Sim APIs’ decoded view but with ABI coverage across the indexed contract universe.

NFTs / collectibles

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/collectibles/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get NFTs by Wallet	`https://deep-index.moralis.io/api/v2.2/:address/nft`	Documentation
EVM	Get NFT Collections by Wallet	`https://deep-index.moralis.io/api/v2.2/:address/nft/collections`	Documentation
Solana	Get NFTs by Wallet	`https://solana-gateway.moralis.io/account/:network/:address/nft`	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/evm/collectibles/0xd8da6bf26964af9d7eed9e03e53415d37aa96045?chain_ids=1" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://deep-index.moralis.io/api/v2.2/0xd8da6bf26964af9d7eed9e03e53415d37aa96045/nft?chain=eth&format=decimal&normalizeMetadata=true&media_items=true" \
  -H "X-API-Key: $MORALIS_API_KEY"

Notes: Moralis returns ERC721 and ERC1155 holdings with normalized metadata, hosted media previews, and spam indicators.

Token info / metadata

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/token-info/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get Token Metadata	`https://deep-index.moralis.io/api/v2.2/erc20/metadata`	Documentation
Solana	Get Token Metadata	`https://solana-gateway.moralis.io/token/:network/:address/metadata`	Documentation

Token holders

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/token-holders/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get Token Holders	`https://deep-index.moralis.io/api/v2.2/erc20/:token_address/owners`	Documentation
EVM	Get Token Holder Stats	`https://deep-index.moralis.io/api/v2.2/erc20/:token_address/holders/stats`	Documentation
EVM	Get Historical Token Holders	`https://deep-index.moralis.io/api/v2.2/erc20/:token_address/holders/historical`	Documentation

Search tokens

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/token-search

Chain	Moralis Equivalent	Moralis URL	Documentation
Cross-chain	Search Tokens	`https://deep-index.moralis.io/api/v2.2/tokens/search`	Documentation

DeFi positions

Sim APIs Endpoint: https://api.sim.dune.com/v1/evm/defi/positions/{address}

Chain	Moralis Equivalent	Moralis URL	Documentation
EVM	Get Wallet DeFi Positions Summary	`https://deep-index.moralis.io/api/v2.2/wallets/:address/defi/positions`	Documentation
EVM	Get Detailed Wallet Positions	`https://deep-index.moralis.io/api/v2.2/wallets/:address/defi/:protocol/positions`	Documentation
EVM	Get DeFi Protocols by Wallet	`https://deep-index.moralis.io/api/v2.2/wallets/:address/defi/summary`	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/evm/defi/positions/0xd8da6bf26964af9d7eed9e03e53415d37aa96045" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://deep-index.moralis.io/api/v2.2/wallets/0xd8da6bf26964af9d7eed9e03e53415d37aa96045/defi/positions?chain=eth" \
  -H "X-API-Key: $MORALIS_API_KEY"

Notes: Returns positions grouped by protocol with USD value, position type (liquidity, staking, lending, etc.), and per-position breakdown.

Real-time webhooks → Moralis Streams

Sim APIs Endpoint: POST/PUT/DELETE https://api.sim.dune.com/v1/webhooks/...

Feature	Moralis Equivalent	Documentation
Address activity events	EVM Streams	Documentation
Balance-change events	EVM Streams (ERC20 + native filters)	Documentation
Solana account events	Solana Streams	Documentation
Stream management API	Streams API Reference	Documentation

# Moralis Streams — create one stream, attach many addresses to it later
curl -X POST "https://api.moralis-streams.com/streams/evm" \
  -H "X-API-Key: $MORALIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "webhookUrl": "https://your.app/webhooks/moralis",
    "description": "Wallet activity",
    "tag": "wallet-activity",
    "chainIds": ["0x1", "0x2105"],
    "includeNativeTxs": true,
    "includeContractLogs": true,
    "includeInternalTxs": false
  }'

Notes: Where the Sim APIs model is one webhook per address, Moralis Streams uses a stream-with-attached-addresses model — create the stream once and add/remove addresses dynamically without re-subscribing. Streams also supports ABI-decoded contract events and smart-filter expressions on top of the basic address-activity feed.

Solana balances and activity

Sim APIs Endpoint: https://api.sim.dune.com/v1/svm/balances/{address} and https://api.sim.dune.com/v1/svm/transactions/{address}

Feature	Moralis Equivalent	Moralis URL	Documentation
Portfolio (native + SPL + USD)	Get Portfolio	`https://solana-gateway.moralis.io/account/:network/:address/portfolio`	Documentation
SPL token balances	Get Token Balances	`https://solana-gateway.moralis.io/account/:network/:address/tokens`	Documentation
Native SOL balance	Get Native Balance	`https://solana-gateway.moralis.io/account/:network/:address/balance`	Documentation
Swap history	Get Wallet Swaps	`https://solana-gateway.moralis.io/account/:network/:address/swaps`	Documentation
Real-time events	Solana Streams	N/A — configured via the Streams dashboard or API	Documentation

# Sim APIs
curl "https://api.sim.dune.com/v1/svm/balances/D8da6bf26964af9d7eed9e03e53415d37aa96045aaaaaaaaaaaaaaaaaaaaaaaa" \
  -H "X-Sim-Api-Key: $SIM_API_KEY"

# Moralis
curl "https://solana-gateway.moralis.io/account/mainnet/D8da6bf26964af9d7eed9e03e53415d37aa96045aaaaaaaaaaaaaaaaaaaaaaaa/portfolio" \
  -H "X-API-Key: $MORALIS_API_KEY"

Chain coverage

The Sim APIs cover 60+ EVM chains plus Solana. Moralis covers a comparable footprint across EVM, Solana, and Bitcoin. The full list is on Supported Chains — if you’re migrating off the Sim APIs, do a one-time diff against the chains you’ve configured in Sim and flag any gaps before cutover.

Sim APIs migration checklist

Get an API key — Get your API key.
Map your call sites — replace each Sim APIs endpoint with the equivalent above. Field names differ; most teams write a thin response adapter rather than threading new shapes through the codebase.
Move Sim APIs webhooks to Streams — create one Stream per event class (activity, ERC20 transfers, contract events) and attach addresses dynamically instead of one webhook per address.
Verify chain coverage — diff your Sim APIs chain configuration against Supported Chains.
Cut over before August 1, 2026 — the Sim APIs stop serving on that date.

Beyond the Sim APIs: what Moralis adds

The Sim APIs surface maps cleanly onto Moralis, but Moralis also exposes endpoints that don’t have a Sim APIs counterpart and that are commonly used by teams once they migrate:

Wallet PnL — realized and unrealized PnL per wallet with token-level breakdown. See Wallet PnL Summary and Wallet PnL by Token.
Wallet Stats & Insights — first/last activity, chain-level activity rollups, and behavioral signals. See Wallet Stats and Wallet Insights.
Token approvals — open ERC20 approvals for a wallet, used widely in revoke flows. See Wallet Approvals.
Token discovery — Trending Tokens.
OHLCV & pair stats — candle data and DEX pair analytics. See Get OHLCV by Pair Address.
Cross-chain balances in one call — see Cross-Chain Token Balances.

Need help migrating off the Sim APIs?

If you’re moving a production Sim APIs workload over before the August 1 deadline, the support team can help size the migration and review your call patterns — reach out via moralis.com.

Introduction

Getting Started

Pricing & Resources

Tutorials & Guides

Migrating from Sim APIs (Sim by Dune) to Moralis

Migrating from Sim APIs (Sim by Dune) to Moralis

Quick reference: Sim APIs → Moralis

EVM — Account data

EVM — Token data

EVM — DeFi

Real-time — Webhooks → Streams

Solana (SVM)

Sim APIs endpoint details

Wallet activity

Token balances

Transactions

NFTs / collectibles

Token info / metadata

Token holders

Search tokens

DeFi positions

Real-time webhooks → Moralis Streams

Solana balances and activity

Chain coverage

Sim APIs migration checklist

Beyond the Sim APIs: what Moralis adds

Need help migrating off the Sim APIs?

​Migrating from Sim APIs (Sim by Dune) to Moralis

​Quick reference: Sim APIs → Moralis

​EVM — Account data

​EVM — Token data

​EVM — DeFi

​Real-time — Webhooks → Streams

​Solana (SVM)

​Sim APIs endpoint details

​Wallet activity

​Token balances

​Transactions

​NFTs / collectibles

​Token info / metadata

​Token holders

​Search tokens

​DeFi positions

​Real-time webhooks → Moralis Streams

​Solana balances and activity

​Chain coverage

​Sim APIs migration checklist

​Beyond the Sim APIs: what Moralis adds

​Need help migrating off the Sim APIs?

Migrating from Sim APIs (Sim by Dune) to Moralis

Quick reference: Sim APIs → Moralis

EVM — Account data

EVM — Token data

EVM — DeFi

Real-time — Webhooks → Streams

Solana (SVM)

Sim APIs endpoint details

Wallet activity

Token balances

Transactions

NFTs / collectibles

Token info / metadata

Token holders

Search tokens

DeFi positions

Real-time webhooks → Moralis Streams

Solana balances and activity

Chain coverage

Sim APIs migration checklist

Beyond the Sim APIs: what Moralis adds

Need help migrating off the Sim APIs?