GET /v1/econ/dashboard/delta$0.015dailytier: datacache 60sEngine E — US Economic Data (FRED)
Keyset delta of /v1/econ/dashboard: pass since=<next_cursor from your last call> and get only the econ observations printed or revised added or changed after it, plus changed_count and a new next_cursor. Omit since once to bootstrap. Cursors are stable across restarts. Poll the free sibling /v1/econ/dashboard/changes for counts and pay only when there is something to fetch.
An unknown, malformed, or future cursor returns 400 with a pointer at the parent snapshot. Responses are always well-formed, even when empty. At most 500 rows per call; follow next_cursor for more.
| Name | In | Type | Required | Notes |
|---|---|---|---|---|
since | query | string | no | Opaque cursor from a previous next_cursor; omit once to bootstrap a cursor at now |
curl "https://x402-factory.com/v1/econ/dashboard/delta"
Bootstrap call: empty delta plus a cursor at now.
{
"data": {
"rows": [],
"changed_count": 0,
"next_cursor": "djF8MjAyNi0wOC0xNFQwNDo1NjowMS4yNDZafA",
"as_of": "2026-08-14T04:56:01.246Z"
},
"meta": {
"endpoint": "/v1/econ/dashboard/delta",
"version": "1.0.0",
"generated_at": "2026-09-13T09:52:15.261Z",
"freshness": "daily",
"sources": [
"FRED",
"ALFRED"
],
"request_id": "req_00000000",
"docs": "https://x402-factory.com/docs/econ.dashboard.delta",
"data_mode": "live"
}
}data payload){
"type": "object",
"properties": {
"rows": {
"type": "array",
"items": {
"type": "object",
"properties": {
"series": {
"type": "string"
},
"obs_date": {
"type": "string"
},
"latest_value": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"latest_vintage": {
"type": "string"
},
"first_value": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"revised": {
"type": "boolean"
}
},
"required": [
"series",
"obs_date",
"latest_value",
"latest_vintage",
"first_value",
"revised"
],
"additionalProperties": false
}
},
"changed_count": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"next_cursor": {
"type": "string"
},
"as_of": {
"type": "string"
}
},
"required": [
"rows",
"changed_count",
"next_cursor",
"as_of"
],
"additionalProperties": false
}
The platform wraps every payload in an envelope: { "data": …, "meta": { endpoint, version, generated_at, freshness, sources, request_id, docs, data_mode } }.
Unpaid requests receive 402 with payment requirements (accepts). Pay $0.015 in USDC on Base per call via an X-PAYMENT header — see docs.x402.org. With PAYMENT_MODE=disabled (local dev) the endpoint is open.
| Status | Code | Meaning |
|---|---|---|
| 400 | INVALID_PARAMS | Input failed validation; message lists the offending fields. |
| 404 | NOT_FOUND | No matching resource; suggestion may point to a sibling endpoint. |
| 410 | RESOLVED | Market/event settled; body includes a resolution summary. |
| 503 | STALE_DATA | Upstream feed down; stale data is never silently served beyond 2× cache TTL. |
| 500 | INTERNAL | Our bug. The request_id helps us find it. |