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Documentation Index

Fetch the complete documentation index at: https://docs.0xradar.app/llms.txt

Use this file to discover all available pages before exploring further.

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Authentication

0xRadar uses an API key passed in the X-API-Key header. All v1 endpoints except /health and /chains require authentication.

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Getting an API key

  1. Sign up at 0xradar.app
  2. Navigate to Dashboard → API Keys
  3. Click Generate Key
  4. Copy the key — it is shown only once
Store your API key in a secrets manager. Never commit it to version control.

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Using the key

curl -H "X-API-Key: rk_live_xxxxxxxxxxxxxxxx" \
  https://api.0xradar.app/v1/wallet/0x.../balances?chain=ethereum
Query parameter ?api_key= is not supported for security reasons (URL exposure in logs, browser history).

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Tiers

TierRate LimitDaily CapBest For
Free10 requests/min100/dayPrototyping, personal dashboards
Dev100 requests/min10,000/dayStartups, small integrations
Pro600 requests/min100,000/dayProduction apps, high-frequency polling
Tier assignment is tied to your API key. Upgrade or downgrade from the Dashboard.

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Error responses

StatusMeaningResolution
401 UnauthorizedMissing or invalid keyCheck header spelling and key validity
403 ForbiddenKey valid but tier scope deniedUpgrade tier
429 Too Many RequestsRate limit exceededBack off and retry with exponential jitter
503 Service UnavailableRate limiter temporarily downRetry after 5-10 sec

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Next steps