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Api Endpoint

Observer BTC Historical Regime Ledger

Historical Bitcoin BTC-USD state-transition dataset in CSV for quantitative backtesting, strategy research, model evaluation, audit trails, and autonomous-agent decision traceability. Includes event timestamps, price at event, market state and phase, pressure, alert label, completion readiness, transition and risk labels, change signatures, interpretation, and forward outcomes when available. Experimental analytics only; not financial advice.

Open interactive test console

Offering

Provider
observer.137-184-67-179.sslip.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://observer.137-184-67-179.sslip.io/paid/state-change-ledger
MIME type
text/csv; charset=utf-8
First seen
2026-10-16T02:59:31.787Z
Last seen
Tags
Bitcoin, BTC, btc-usd, backtesting, historical-data, state-transitions, market-regime, quantitative-research, CSV, X402

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "payTo": "0xfDe7913aBE6E4A4e3e3134CF050dF9030aE8EF48"
  }
]

Observed health

Status
Healthy
Latest latency
35 ms
Average latency
127 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "description": "Optional query parameters for the Observer state-change ledger.",
      "properties": {
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 1000,
          "description": "Maximum number of CSV data rows returned. The header row is always included."
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "string",
      "description": "CSV dataset of timestamped BTC-USD market states, alert labels, pressure, readiness, state changes, and forward outcomes for backtesting and audit trails.",
      "contentMediaType": "text/csv",
      "minLength": 1
    }
  },
  "required": [
    "type"
  ]
}