ClearTrace
Blockchain
Cross-frontend DEX attribution and execution quality data across Ethereum and L2s
No keyCORSHTTPS
SwiftNodes
Multi-chain blockchain RPC nodes (Ethereum, Solana and 75+ networks)
API key
Required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Not yet checked
How to call it
A starting template for SwiftNodes. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://swiftnodes.io/ENDPOINT" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us.
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SwiftNodes — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is SwiftNodes free to use?
SwiftNodes is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does SwiftNodes need an API key?
Yes. SwiftNodes authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.
Can I call SwiftNodes from browser JavaScript?
Yes. SwiftNodes 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 SwiftNodes available over HTTPS?
Yes. SwiftNodes serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.