Market Orderbook Rollup

Lifetime aggregate counters for a Polymarket CLOB v2 outcome token from the orderbook subgraph — trades, buys/sells, notional USDC with both raw and scaled variants.

Per-token aggregate from the v2 orderbook-validator subgraph (sgd9.orderbook → v2.orderbook). Returns lifetime counters maintained by the subgraph itself rather than re-aggregated from individual fills — a separate, cheaper path than /clobv2/markets/{token_id}/volume, which does the GROUP BY on fills.

v2-exclusive: the subgraph maintains this rollup only for v2 markets.

Request

GET /clobv2/markets/{token_id}/orderbook

Authentication

Paid tier required. See /clobv2/trades for auth formats.

Path parameters

Parameter	Type	Required	Description
token_id	string	Yes	Outcome token ID (uint256 as decimal string).

No query parameters.

Parameter validation

• token_id: 1-78 digits, ^[0-9]+$.

Response

When the token has a v2 orderbook row (found):

{
  "token_id": "32530407925029104312458780580530294728135746429755854137976885977399961033740",
  "source": "onchain-v2",
  "found": true,
  "trades": "1",
  "buys": "1",
  "sells": "0",
  "notional_usdc": "1.3440000000000000",
  "buy_usdc": "1.3440000000000000",
  "sell_usdc": "0.000000000000000000000000",
  "scaled_notional_usdc": "0.000001344000000000000000",
  "question": "Solana Up or Down - April 20, 2:10AM-2:15AM ET",
  "slug": "sol-updown-5m-1776665400",
  "event_title": "Solana Up or Down - April 20, 2:10AM-2:15AM ET",
  "outcome": "Up",
  "image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/SOL+fullsize.png",
  "condition_id": "0x1ee2fb3f919aa7c307565db03241926252666691aca6d7185af4654df603efdc"
}

When the token has no v2 orderbook row (never traded on v2):

{
  "token_id": "99999...",
  "source": "onchain-v2",
  "found": false
}

Response fields

Field	Type	Description
token_id	string	Echoes the path parameter.
source	string	Always "onchain-v2".
found	boolean	true if the subgraph has a rollup row for this token; false otherwise (all other fields absent).
trades	string (numeric)	Total fills counted by the subgraph.
buys / sells	string (numeric)	Buy and sell counters.
notional_usdc	string (numeric)	Total USDC that changed hands (buy + sell).
buy_usdc / sell_usdc	string (numeric)	USDC split by side.
scaled_notional_usdc	string (numeric)	The subgraph also emits a scaled variant — this is the raw on-chain amount divided by an extra 1e6. Prefer notional_usdc for dollar-denominated analytics.
question / slug / event_title / outcome / image / condition_id	string | null	Enriched from the metadata layer.

Numeric counters come back as strings to preserve exactness from the subgraph’s BigInt type.

Examples

cURL

curl "https://api.polynode.dev/clobv2/markets/32530407925029104312458780580530294728135746429755854137976885977399961033740/orderbook" \
  -H "x-api-key: pn_live_..."

Error responses

Status	Body	When
400	{"error": "invalid token_id ..."}	Path param isn’t a positive integer string.
401	{"error": "missing API key ..."}	No key or bad key.
402	{"error": "paid plan required ..."}	Free tier.
429	{"error": "rate limit exceeded", "reset_at": <unix>}	Rate limit hit.
5xx	{"error": "upstream gateway error"}	Transient upstream; retried once.

Notes

• Values may be slightly behind the per-fill aggregation at /clobv2/markets/{token_id}/volume because the subgraph has a small processing lag after a new fill; for most tokens they reconcile within a second or two.
• scaled_notional_usdc is the subgraph’s own parallel counter and is divided by an extra 1e6 compared to notional_usdc. It’s present for feature parity with the raw subgraph; most integrators should ignore it.
• found: false is a valid response (not a 404). It means the v2 subgraph hasn’t observed any fills touching this token yet.