Subscribe for 30 days to the change feed behind /crypto/scan: one cursor over the upstream
Subscribe for 30 days to the change feed behind /crypto/scan: one cursor over the upstream advice ledger, all coins at once. Returns a handle and a cursor; polling is then free and unlimited: /crypto/feed/since returns every published change since your cursor — new signals, classification flips, status changes (PUBLISHED/STALE/INVALIDATED), score and entry-zone changes. Be first to know when the market state flips; the full advice per signal stays a separate paid call.
2000000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-18
updated
Provider
agentdata-api.sander-van-aard.workers.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xb0ae6a9bd7a573ddda58db6c28622417e8ca2099",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000000",
"maxTimeoutSeconds": 120
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"coverage": {
"coins": [
"BTC-EUR",
"ETH-EUR",
"SOL-EUR"
]
},
"cursor": 1702,
"event_kinds": [
"new_signal",
"classification_changed",
"status_changed",
"score_changed",
"entry_zone_changed",
"economics_changed",
"execution_blockers_changed"
],
"expires_at": "2026-08-28T09:00:00.000Z",
"feed_handle": "9f2c4a1b7e0d3c6a8b5f2e14",
"poll": {
"body": {
"cursor": 1702,
"feed_handle": "9f2c4a1b7e0d3c6a8b5f2e14"
},
"endpoint": "/crypto/feed/since"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://agentdata-api.sander-van-aard.workers.dev/crypto/feed" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://agentdata-api.sander-van-aard.workers.dev/crypto/feed");
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://agentdata-api.sander-van-aard.workers.dev/crypto/feed")
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/6258.json, and this resource appears in /discovery/resources and /discovery/search.