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SYNTHORA Tor-Fetch: Dual-Path URL Fetcher with Censorship Detection
x402
SYNTHORA Tor-Fetch: Dual-Path URL Fetcher with Censorship Detection is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Fetches any URL (including .onion) via both Tor and the direct clearnet path simultaneously, returning status codes, response sizes, and a divergence flag indicating geo-blocking or soft censorship.
Price / call$0.03
Success—
StatusUnknown
How this service works
SYNTHORA tor-fetch: fetch any URL (including .onion) via Tor AND directly, compared side by side — status, size, and divergence flag (geo-block / soft censorship detection). Access onion intel sources with no clearnet route. $0.005 USDC x402 Base.
Output
Returns a side-by-side comparison of the Tor-routed and direct fetch: HTTP status codes for both paths, response body sizes for both, and a boolean divergence flag. The divergence flag signals potential geo-blocking or soft censorship when the two paths return meaningfully different results.
Example use cases
Geo-block detection for a news site
“Fetch https://bbc.co.uk through both Tor and normally and tell me if there's a divergence — I suspect it's being geo-blocked for users coming from certain exit nodes.”
Accessing dark web intelligence feed
“Pull the content from this .onion address for me: http://darkfailenbsdla5mal2mxn2uz66od5vtzd5qozslagrfzachha3f3id.onion — I need to read it but I don't have a Tor browser handy.”
Soft censorship audit for research
“Compare the Tor and direct responses for https://en.wikipedia.org/wiki/Tiananmen_Square — I want to see if there's a divergence flag suggesting the page is being soft-censored for anonymized traffic.”
Technical details
Endpoint
POSThttps://api.hergertsynthora.com/v1/tor-fetchWhen to prefer
Use this endpoint when you need to access .onion (dark web) URLs without a local Tor installation, or when you want to detect geo-blocking and soft censorship by comparing Tor-routed versus direct HTTP responses for the same URL. Prefer this over a standard web fetch when anonymity comparison or censorship detection is the primary goal.
Side effects
- Tor circuit timeout — onion routing can be slow or circuit may fail to establish
- .onion address unreachable — hidden service may be offline
- URL invalid or malformed input — returns error
- Divergence flag false positive — content may differ for non-censorship reasons (e.g. A/B testing, CDN variation)
- Clearnet fetch blocked by target server (rate limit or IP ban)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | SYNTHORA tor-fetch: fetch any URL (including .onion) via Tor AND directly, compared side by side — status, size, and divergence flag (geo-block / soft censorship detection). Access onion intel sources |
Tags
x402
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