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Evidence402 Web Read
x402
Evidence402 Web Read is a paid API for AI agents from evidence402.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Fetches a public webpage and returns its extracted text content, title, and a content hash for verification
Price / call$0.005
Success—
StatusUnknown
How this service works
Read public webpages, extract structured data and verify DOI citations. No buyer API key or subscription. Pay per call with x402 USDC on Base.
Output
Returns a JSON object containing the extracted plain text of the webpage, the page title, a SHA-256 content hash for integrity verification, the URL that was fetched, a retrieval timestamp, the service name, and a unique request ID.
Example use cases
Verify claims from a news article
“Can you fetch this article at https://apnews.com/article/climate-change-2024 and extract the full text so I can check what it actually says about the new emissions report?”
Extract content from academic preprint
“Pull the text from https://arxiv.org/abs/2401.12345 so I can read the abstract and findings without opening a browser.”
Snapshot a webpage for audit trail
“Read https://example-company.com/press-release/q4-2024 and give me the content hash and retrieval timestamp so I have a verifiable record of what it said today.”
Technical details
Endpoint
POSThttps://evidence402.onrender.com/api/v1/web-read?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to retrieve and read the text content of a specific public webpage without managing browser infrastructure yourself, especially when you want a tamper-evident content hash for auditing or citation verification. It is ideal for research agents, fact-checking pipelines, and any workflow needing a lightweight, pay-per-call web read without a standing API subscription.
Side effects
- URL is behind a paywall or login — returns no usable content or empty text
- Page uses heavy JavaScript rendering — static extraction may miss dynamically loaded content
- URL is unreachable or returns a non-200 HTTP status — request fails with an error
- Rate limits or bot-blocking on the target site may cause retrieval failures
- Invalid or malformed URL input causes a request error
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"url": "https://example.com/",
"text": "Example Domain",
"title": "Example Domain",
"contentHash": "illustrative-sha256",
"retrievedAt": "2026-10-07T00:00:00Z"
},
"service": "Evidence402",
"requestId": "example-request"
}
}Tags
x402
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