OnChainFlows API

Build custom alerts, dashboards, and research pipelines with raw on-chain flow intelligence. Every endpoint returns normalized flow data with entity labels, confidence scores, and chain context.

12chains supported

350msmedian response time

99.98%uptime SLA

Quickstart

Create an API key in your workspace.
Whitelist your origin or server IP.
Send a signed request to /v1/flows/whales.

Base URLhttps://api.onchainflows.io

Market signals

Pull rotation and signal endpoints that highlight shifts between majors and stablecoin liquidity.

GET

/v1/signals/rotation

Detect cross-asset rotation between majors and stables.

base

string

Asset symbol (BTC, ETH).

window

string

1h, 4h, 24h.

threshold

number

Signal intensity level.

ReturnsRotationSignal[]

Rotation signal

GET /v1/signals/rotation?base=ETH&window=4h

Request

curl -X GET \
  "https://api.onchainflows.io/v1/signals/rotation?base=ETH&window=4h" \
  -H "x-ocf-key: ocf_live_xxxx" \
  -H "x-ocf-ts: 1731029871" \
  -H "x-ocf-signature: 91f23c..."

Response

{
  "base": "ETH",
  "window": "4h",
  "signal": "risk-on",
  "confidence": 0.79,
  "rotation": [
    { "asset": "BTC", "direction": "outflow", "value_usd": 84000000 },
    { "asset": "USDC", "direction": "inflow", "value_usd": 112000000 }
  ]
}

Signal summary

GET /v1/signals/rotation?base=BTC&window=24h

Request

curl -X GET \
  "https://api.onchainflows.io/v1/signals/rotation?base=BTC&window=24h" \
  -H "x-ocf-key: ocf_live_xxxx" \
  -H "x-ocf-ts: 1731029871" \
  -H "x-ocf-signature: b108ea..."

Response

{
  "base": "BTC",
  "window": "24h",
  "signal": "risk-off",
  "confidence": 0.67,
  "summary": "Stablecoin inflows dominate major asset outflows."
}

Need help?

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