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Feeds are ready-made onchain datasets. Each feed answers one question, such as what a wallet holds, what a token is worth, what a Polymarket trader did, or which block was current at a given time. Goldsky indexes, normalizes, and prices the data, so you don’t run any of that yourself. Feeds now includes the Polymarket and block datasets formerly called Edge Data, or Data APIs. Their URLs haven’t changed, and existing Data API keys keep working. The old Data APIs page in the dashboard is gone: those keys are listed under Feeds → API keys.

Quickstart

Make your first Balances, Transfers, Tokens, Polymarket, and Blocks requests.

API reference

Endpoints, parameters, and response fields.

Build with agents

Use Feeds from AI agents and coding assistants.

Data sync

Sync any feed to ClickHouse, Postgres, MySQL, a webhook, and more. In early access.

Pricing

$10 per million compute units, or pay per request with x402. No account needed.
Onchain data from EVM chains flows into Goldsky Feeds, which produces Transfers and Balances. Your app queries them over the REST API. Data sync to your database is in early access.Onchain data from EVM chains flows into Goldsky Feeds, which produces Transfers and Balances. Your app queries them over the REST API. Data sync to your database is in early access.

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Available feeds

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Supported chains

Each group covers its own chains. The wallet feeds, Balances and Transfers, support 9 EVM chains and Solana. Tokens supports the 9 EVM chains. See supported chains in the API reference for aliases and how to filter by chain. The Prediction markets feeds cover Polymarket, which runs on Polygon. Blocks and Chain head support 21 chains, including Ethereum, Base, BNB Smart Chain, HyperEVM, and Polygon. See Blocks supported chains for the full list. More feeds and chains are coming.

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What you can build

  • A portfolio screen with a total at the top and one row per token.
  • Deposit reconciliation that matches inbound transfers against the deposits you expect.
  • Notifications such as “You received 50 USDC” when a transfer lands.
  • Transfer history exports for tax and accounting tools.
  • A token list or picker with symbols, logos, and current USD prices.
  • A Polymarket trader’s history, open positions, and realized PnL.
  • A feed of large fills in one Polymarket market.
  • Timestamp-to-block lookups for backfills, reports, and onchain queries pinned to a point in time.
If you already get balances and transfers from another provider, Feeds works as a second source to cross-check against.

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How you get the data

The REST API is self-serve: create an API key under Feeds → API keys in the dashboard and start making requests. One key works for every feed. See the quickstart. The dashboard’s Feeds page has a card for each group, including Prediction markets and Chain datasets. Each card opens a feed page with a request builder, a preview of the response, and the feed’s Usage and Logs. You can also pay per request in USDC with x402, with no Goldsky account or API key. Data sync, which pushes any feed’s rows to a destination such as ClickHouse, Postgres, MySQL, or a webhook as they land, is in early access. See data sync to request access.

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Pricing

With an API key, every feed bills on one meter: $10 per million compute units, with no minimum spend. Every feed endpoint also supports x402, so you can pay per request in USDC without a Goldsky account or API key. A Balances, Transfers, or Tokens request costs the same whether it covers one chain or every supported chain, or one token or 100. See Feeds pricing for rate limits and billing details. Can’t find what you’re looking for? Reach out to us at support@goldsky.com for help.