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whatchuneed Substack Crawl
x402
whatchuneed Substack Crawl is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Crawls and extracts content from a Substack publication or post given a URL or query input
Price / call$0.05
Success—
StatusUnknown
How this service works
320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.
Output
Returns a result object containing extracted Substack content such as article body text, title, author name, publication date, and other available post metadata, along with a status field indicating success or failure.
Example use cases
Summarize a Substack newsletter post
“Grab the full content of this Substack article at https://platformer.news/p/the-inside-story so I can get a summary of what it covers.”
Research a Substack author's publications
“Crawl the Substack publication at https://stratechery.com and pull the latest posts and their titles so I can see what topics they've been writing about recently.”
Monitor a newsletter for keyword mentions
“Fetch the latest post from https://sinocism.substack.com and extract all the text so I can check whether it mentions anything about trade policy.”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/crawl/substackWhen to prefer
Choose this endpoint when you need to programmatically extract content from a specific Substack publication or post and want a pay-per-call approach without managing your own scraping infrastructure. It is particularly useful when integrating Substack content into agent workflows, summaries, or research pipelines via the x402 protocol.
Side effects
- Invalid or inaccessible Substack URL returns an error result
- Paywalled or subscriber-only posts may return partial or no content
- Rate limiting or Substack bot detection may cause failed crawl
- Malformed input string causes validation error
- Network timeout returns empty or null result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | Request input |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | Response data |
| status | string |
Tags
x402
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