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GET
/
v2
/
onchain
/
oi
Global open interest (onchain)
curl --request GET \
  --url https://api.polynode.dev/v2/onchain/oi

Documentation Index

Fetch the complete documentation index at: https://polynode.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

Returns the total open interest across the entire Polymarket platform, sourced from onchain data.

​
Request

GET /v2/onchain/oi
No parameters required.

​
Response

{
  "source": "onchain",
  "open_interest_usdc": 488484168.103811
}
FieldTypeDescription
open_interest_usdcnumberTotal platform open interest in USDC

​
Example

curl "https://api.polynode.dev/v2/onchain/oi" \
  -H "x-api-key: YOUR_KEY"

Response

Global open interest