api.dripmetrics.ai · /vpin

https://api.dripmetrics.ai/metrics/vpin

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. VPIN estimates volume-synchronized probability of informed trading for a crypto trading pair over a specified window. Discovery examples use the latest 30m window.

BaseCDP BazaarUnknown

Price · per callUSDC

$0.0500

Calls · 30d

110

Volume · 30dUSDC

$5.50

Unique payers · 30d

Calls per payerunknown

Healthnot probed (top 100 only)

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Identity

What this profile is sourced from

Server id: api-dripmetrics-ai-metrics-vpin
Endpoint: https://api.dripmetrics.ai/metrics/vpin
Primary chain: Base
Listed by: CDP Bazaar
Last call observed: 16h ago
Available via API: /api/v1/servers/api-dripmetrics-ai-metrics-vpin

Sample 402 exchange

Raw HTTP — what an agent observes

GET https://api.dripmetrics.ai/metrics/vpin

→ HTTP/1.1 402 Payment Required
  X-Payment-Required: $0.0500
  X-Payment-Currency: USDC
  X-Payment-Chain: base

GET https://api.dripmetrics.ai/metrics/vpin
  X-Payment: <signed-receipt>

→ HTTP/1.1 200 OK
  Content-Type: application/json
  …response body…

Caveats

Things to know before drawing strong conclusions

· Calls and volume are 30-day cumulative figures from the source facilitator. Daily breakdowns are not yet available — see /methodology.
· Volume = price × calls. If the server publishes multiple price tiers, only the first accepts[] entry is used.
· "Last call" is what the source last reported, refreshed every 60 seconds.

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