ClearTrace
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Cross-frontend DEX attribution and execution quality data across Ethereum and L2s
No keyCORSHTTPS
Helium
Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage
Verified 4 days ago: 100% uptime
API key
Not required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 9775ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for Helium. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# No authentication required.
curl -s "https://docs.helium.com/ENDPOINT" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
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Helium — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Helium free to use?
Helium is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
Does Helium need an API key?
No. We called Helium on 2026-09-18 with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Can I call Helium from browser JavaScript?
Yes. Helium returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is Helium still working?
Yes, as of 2026-09-18. Our automated check reached Helium and recorded a 100% reliability score with a median response time of 9775 ms. We re-check on a schedule, and this page updates with the result.
Is Helium available over HTTPS?
Yes. Helium serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.