Free diagnostics · No signup · No secrets

Find the problem first.
Pay only if you want the fix.

Three bounded diagnostics for public developer endpoints and safe samples. We never ask for passwords, private keys, tokens or production credentials.

Free

RPC Doctor

Check whether a public EVM JSON-RPC endpoint responds to chain and block probes.

Free

API Health Check

Check reachability, HTTP status, latency and a few safe response headers.

Free

Webhook Payload Tester

Validate JSON structure locally through our bounded diagnostic. Do not paste secrets or signatures.

Safety boundary: public URLs only. Private/local network targets are rejected. Diagnostics are intentionally shallow and do not execute supplied code.