Introduction

Sentiment402 provides structured JSON snapshots that answer:

  • What narratives are driving markets right now?

  • What's the overall "mood" (risk-on / risk-off)?

  • Is crypto tracking TradFi or decoupling?

  • What should a bot/agent pay attention to next?

Who this is for

  • AI agents that need concise, tool-callable context without scraping loops

  • Trading systems that want narrative/risk signals alongside price anchors

  • Dashboards that want a reliable "market pulse" payload on a fixed cadence

How it works

Sentiment402 publishes snapshots on an hourly cadence. You retrieve them via HTTP GET endpoints.

Paid endpoints use x402: you'll first receive a 402 Payment Required challenge, then you sign and retry to get a 200 response. See Payment Flow (x402) for details.

What you can request

  • Global snapshot: a combined view of crypto + TradFi + correlation + quality signals

  • Domain pulse: crypto-only or TradFi-only

  • Asset view: a ticker-focused view (e.g. BTC, ETH, NVDA) with the most relevant narratives

  • Compact trading format: a smaller payload for low-latency/bandwidth loops

API versions

  • v2 (/v2/...): recommended; modern x402 headers and Base (EVM) + Solana (SVM) payment options

  • v1 (/v1/...): legacy; legacy header names and Base/EVM-only payment

Next steps

  • Quickstart (5 minutes) to make your first request

  • Endpoints for the full API reference

  • Response Schema to understand the data structure

PreviousWelcome to sentiment402NextQuickstart (5 minutes)

Last updated