Inspect a public JSON, RSS, or Atom URL, detect its record structure, and return a normali
Inspect a public JSON, RSS, or Atom URL, detect its record structure, and return a normalizer-verified FreshDelta monitoring configuration with stable IDs, selected fields, confidence, and warnings.
10000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-17
updated
Provider
delta.rursus.app · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x1480D7A7a299576B45d1793Ec8fb1E68361045B0",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://api.coinbase.com/v2/currencies"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"canonicalUrl": "https://api.coinbase.com/v2/currencies",
"confidence": "high",
"detectedFormat": "json",
"itemCount": 174,
"network": "eip155:8453",
"price": "$0.01",
"selectedFields": [
"name",
"min_size"
],
"source": {
"fields": {
"min_size": [
"min_size"
],
"name": [
"name"
]
},
"format": "json",
"idPath": [
"id"
],
"itemsPath": [
"data"
],
"url": "https://api.coinbase.com/v2/currencies"
},
"warnings": []
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"url": {
"description": "Public HTTPS JSON, RSS, or Atom URL without credentials, query parameters, or fragments",
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"canonicalUrl": {
"description": "Public HTTPS JSON, RSS, or Atom URL without credentials, query parameters, or fragments",
"maxLength": 2048,
"type": "string"
},
"confidence": {
"enum": [
"high",
"medium",
"low"
],
"type": "string"
},
"detectedFormat": {
"enum": [
"json",
"rss",
"atom"
],
"type": "string"
},
"itemCount": {
"maximum": 200,
"minimum": 0,
"type": "integer"
},
"network": {
"enum": [
"eip155:84532",
"eip155:8453"
],
"type": "string"
},
"price": {
"const": "$0.01",
"type": "string"
},
"selectedFields": {
"items": {
"maxLength": 64,
"minLength": 1,
"type": "string"
},
"maxItems": 12,
"type": "array"
},
"source": {
"oneOf": [
{
"additionalProperties": false,
"properties": {
"fields": {
"additionalProperties": {
"items": {
"maxLength": 64,
"minLength": 1,
"pattern": "^[A-Za-z0-9_.:@-]+$",
"type": "string"
},
"maxItems": 8,
"minItems": 1,
"type": "array"
},
"propertyNames": {
"maxLength": 64,
"minLength": 1,
"pattern": "^[A-Za-z][A-Za-z0-9_-]*$",
"type": "string"
},
"type": "object"
},
"format": {
"const": "json",
"type": "string"
},
"idPath": {
"description": "Property path to a stable unique string or safe-integer item identifier",
"items": {
"maxLength": 64,
"minLength": 1,
"pattern": "^[A-Za-z0-9_.:@-]+$",
"type": "string"
},
"maxItems": 8,
"minItems": 1,
"type": "array"
},
"itemsPath": {
"description": "Property path to the record array; use an empty array when the JSON document root is the array",
"items": {
"maxLength": 64,
"minLength": 1,
"pattern": "^[A-Za-z0-9_.:@-]+$",
"type": "string"
},
"maxItems": 8,
"type": "array"
},
"url": {
"description": "Public HTTPS JSON, RSS, or Atom URL without credentials, query parameters, or fragments",
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url",
"format",
"itemsPath",
"idPath",
"fields"
],
"type": "object"
},
{
"additionalProperties": false,
"properties": {
"format": {
"enum": [
"rss",
"atom"
],
"type": "string"
},
"url": {
"description": "Public HTTPS JSON, RSS, or Atom URL without credentials, query parameters, or fragments",
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url",
"format"
],
"type": "object"
}
]
},
"warnings": {
"items": {
"maxLength": 256,
"minLength": 1,
"type": "string"
},
"maxItems": 8,
"type": "array"
}
},
"required": [
"canonicalUrl",
"detectedFormat",
"confidence",
"itemCount",
"selectedFields",
"warnings",
"source",
"price",
"network"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
}Use it
curl
curl "https://delta.rursus.app/v1/sources/inspect" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://delta.rursus.app/v1/sources/inspect");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://delta.rursus.app/v1/sources/inspect")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5474.json, and this resource appears in /discovery/resources and /discovery/search.