Polymarket Subgraph (2026): GraphQL Endpoints and What Replaced Them

What is the Polymarket subgraph?

It is a set of subgraphs, indexers that run on The Graph's graph-node, which Polymarket wrote to turn its Polygon contract events into a GraphQL API. Polymarket's docs described them as providing "useful aggregate calculations and event indexing for things like volume, user position, market and liquidity data". The code lives in Polymarket's public polymarket-subgraph repository, which holds eight subgraphs:

What were the Polymarket subgraph GraphQL endpoints?

The public endpoints were never Polymarket's own servers. Its docs said the subgraphs were "hosted and made publicly available by a 3rd party provider, Goldsky", and as late as October 2025 they listed five endpoints, each under api.goldsky.com/api/public/project_cl6mb8i9h0003e201j6li0diw/subgraphs/:

By February 2026 the endpoint list was gone from that page, and by October 2026 the page itself returned a 404. Polymarket's current docs, which we searched in full on 3 October 2026, no longer mention a GraphQL subgraph.

Do the Polymarket subgraph endpoints still work?

No. We sent each endpoint a _meta query, which asks a subgraph for its latest indexed block:

curl -s -X POST "https://api.goldsky.com/api/public/project_cl6mb8i9h0003e201j6li0diw/subgraphs/orderbook-subgraph/0.0.1/gn" \
  -H "Content-Type: application/json" \
  -d '{"query":"{ _meta { block { number timestamp } hasIndexingErrors } }"}'

{
  "errors": [
    {
      "message": "This Polymarket subgraph endpoint is paused and deprecated following Polymarket's migration to V2 ...",
      "extensions": { "code": "ENDPOINT_DEPRECATED" }
    }
  ]
}

Can you still run the Polymarket subgraph yourself?

The code is public, and its README covers deploying to a local graph-node or to Goldsky. The catch is what it indexes. The repository's Polygon config still points at the exchange contracts 0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E and 0xC5d563A36AE78145C45a50134d48A1215220f80a, the neg risk adapter that Polymarket's contracts page now marks deprecated, and USDC.e. Polymarket's V2 upgrade on 28 April 2026 brought new exchange contracts, a new order struct and pUSD collateral, while the latest commit on the repository's main branch is dated 8 January 2026.

The chain shows the gap. Across 1,000 Polygon blocks on 3 October 2026, about 25 minutes, the two exchanges in the subgraph's config emitted no OrderFilled or OrdersMatched events at all, only token registrations. The CTF Exchange and Neg Risk CTF Exchange on Polymarket's contracts page emitted more than 5,600 events in just 50 of those blocks. None of the three most common event signatures on the V2 exchanges matched the OrderFilled, OrdersMatched or TokenRegistered signatures the orderbook subgraph listens for. A self-hosted copy therefore needs new addresses, new ABIs and updated handlers before it tracks current trading. The current addresses are in our Polymarket contract addresses guide.

What replaced the Polymarket subgraph?

Polymarket's Data API v2, served from https://data-api.polymarket.com/v2. Its docs say "No API key or authentication is required". Every route shares one response envelope, and list routes page with cursors. Most of what the hosted subgraphs offered maps onto a route:

Open interest is the simplest swap. Called with no parameters, the route returns one global figure:

curl -s "https://data-api.polymarket.com/v2/oi"

{"data":[{"condition_id":"GLOBAL","value":336211932.8130679}]}

The subgraphs exposed sync state through _meta. The Data API's equivalent is GET /v2/status, which reports how far behind chain head its data is. In our check it showed two seconds of serving lag and its 175 Polygon crawl cursors at most one block behind. One deadline matters: Polymarket retires Data API v1 on 24 October 2026, so code still calling routes such as /positions or /trades without the /v2 prefix needs to move. The routes are covered in depth in the Polymarket Data API guide.

How do you query Polymarket wallets across venues?

If the PnL and positions subgraphs were your way into wallet analysis, the Predictefy API adds Polymarket wallet profiles, holders and leaderboards, plus a smart-money feed that scores trades from 0 to 100 by wallet score, size, entry and timing. It serves Polymarket in the same normalized schema it uses for 15+ venues, so trades, books and history read the same way on each.

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