What is happening to the Sim API?

Dune announced the Sim API is being retired on August 1, 2026, with new signups disabled and existing users emailed migration steps. If you rely on Sim for wallet balances, NFTs, or activity, you will need to migrate. GoldRush offers equivalent decoded endpoints as a supported product.

Which is better for SQL analytics?

Dune. Its SQL engine, community spellbook of decoded tables, and dashboards are best in class for ad-hoc onchain analysis. GoldRush is an API for programmatic decoded data in apps and agents, not a SQL analytics workbench.

Where can I get help migrating?

Join the open GoldRush Discord at discord.gg/wTkSjU6ZhU. The team can help map Sim endpoints to GoldRush equivalents.

API comparison

GoldRush vs Dune

Production decoded-data API vs SQL analytics and the Sim API.

Dune is a SQL-native onchain analytics platform for dashboards and ad-hoc queries across 100+ chains. Its separate Sim API offered a REST wallet-data product, but Dune has announced it is retiring the Sim API on August 1, 2026. GoldRush is a supported, production decoded-data REST API. Use Dune for SQL analytics and dashboards; use GoldRush for decoded wallet, NFT, and pricing data you query from apps and agents.

Try GoldRush free View docs

Verify current details on Dune.

Supported, not sunsettingBuilt for apps, not just analysts

GoldRushvs Dune

Wallet data APISupportedvs ~~Sim API retiring Aug 2026~~

Chain coverage (API)100+ chainsvs ~~60+ (Sim)~~

x402 pay-per-requestNativevs ~~None~~

Why teams choose GoldRush over Dune

The differences that matter when you're shipping multichain data, drawn from each product's public docs and pricing.

Supported, not sunsetting

Dune is retiring its Sim API (the REST wallet/balances/NFT product) on August 1, 2026, with new signups disabled. GoldRush's decoded-data API is a supported, continuing product.

Built for apps, not just analysts

GoldRush returns decoded balances, transactions, NFTs, and prices over REST for production apps. Dune's core strength is SQL analytics and dashboards.

x402 for autonomous agents

Agents pay per request with no signup or key. Dune has no x402 access to its APIs.

JSON-RPC included

GoldRush serves JSON-RPC on 30+ EVM chains. The Sim API is REST-only with no node service.

Best for

GoldRush

Production apps and agents that need supported, decoded multichain data over REST, with x402 for autonomous use.

Dune

Analysts and data teams who want SQL queries, dashboards, and BI across 100+ chains.

Feature comparison

Data sourced from public documentation.

Feature	GoldRush	Dune
Chain coverage	100+	100+ (SQL), 60+ (Sim API)
Primary interface	REST + GraphQL subs	SQL + REST (Sim)
Decoded wallet balances Dune via Sim Balances API	Yes	Yes
NFT API Dune via Sim Collectibles	Yes	Yes
Token prices	Yes	Yes
OHLCV	Yes	Not confirmed
Historical balances at any block	Yes	Limited
Onchain analytics	DEX + pricing	SQL (best in class)
JSON-RPC included	Yes	No
Real-time streaming	GraphQL subscriptions	Webhooks (Sim)
x402 pay-per-request	Yes	No
Sim data API status	n/a	Retiring Aug 1, 2026

Pricing

Current rates as published by each provider.

GoldRush

14-day trial (100k credits, 5 req/s, no card)$0/mo
Vibe Coding$10/mo
Professional$250/mo
Inner Circle (Enterprise SLA)Custom
x402 (No signup, autonomous agents)Pay-per-request

Dune

Free (Analytics) (2,500 query credits)$0/mo
Plus$399/mo
Premium$999/mo
Sim API (Retiring Aug 1, 2026)Usage-based

Pricing details sourced from Dune. Verify on their site for current rates.

Code: Get all token balances for a wallet on Ethereum

Same task, both APIs. Read top to bottom to see request shape and how much data each call returns.

GoldRush

// GoldRush, wallet balances on any chain
const res = await fetch(
  "https://api.covalenthq.com/v1/eth-mainnet/" +
  "address/vitalik.eth/balances_v2/",
  { headers: { Authorization: "Bearer " + process.env.GOLDRUSH_API_KEY } }
);
const { data } = await res.json();
console.log(data.items);

Dune

// Dune Sim API: wallet balances (Sim API retires Aug 1, 2026)
const res = await fetch(
  "https://api.sim.dune.com/v1/evm/balances/" +
  "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?chain_ids=1",
  { headers: { "X-Sim-Api-Key": process.env.SIM_API_KEY } }
);
const { balances } = await res.json();

Frequently asked questions

Partly. Dune's Sim API offered REST wallet data comparable to GoldRush, but Dune is retiring the Sim API on August 1, 2026. Dune Analytics (SQL dashboards across 100+ chains) remains and is excellent for analysis, but it is not a production app/agent data API in the same way.