Get an author's public activity feed
Get an author's public activity feed: their Notes and the posts they publish or restack, newest first, or only their notes, posts, replies, restacks or likes.
Not tested: has real-world effectsour last check, 2026-10-25
0 of 0checks answered this week
n/amedian answer time
$0.004listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402.apidirect.io/v1/substack/user/activity
| Category | Everything else |
|---|---|
| Provider host | x402.apidirect.io |
| Networks | eip155:8453 |
| Payment schemes | exact, upto |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"username": "hamish"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"pages": {
"default": 1,
"description": "Number of pages to fetch and merge into one response (1-250, billed per page returned). Each page returns 12 items. Fetching stops early when there are no more results.",
"maximum": 250,
"minimum": 1,
"type": "integer"
},
"type": {
"description": "Only one kind of activity: note, post, reply, restack or like. Omit for notes, posts and restacks.",
"enum": [
"note",
"post",
"reply",
"restack",
"like"
],
"type": "string"
},
"url": {
"description": "Profile URL, e.g. https://substack.com/@lenny (max 500 characters). Provide one of username, user_id or url.",
"maxLength": 500,
"type": "string"
},
"user_id": {
"description": "Numeric Substack user ID, as returned in user_id. Provide one of username, user_id or url.",
"type": "string"
},
"username": {
"description": "Substack handle, e.g. lenny, with or without a leading @ (max 100 characters). Provide one of username, user_id or url.",
"maxLength": 100,
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}