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Send your token as a Bearer token in the Authorization header on every request:
This is the only supported authentication method. Requests without a valid token receive a 401 Unauthorized response.

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Example

Tokens are issued by Compute Index (david@compute-index.com). They are long-lived — treat them as secrets and never commit them to source control.

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Access scopes

API keys are scoped per section. A key is granted a subset of:
ScopeGrants access to
metadataVendors, GPU models, regions, contract types
info-indexInformational Index endpoints
txn-indexTransaction Index endpoints
custom-indexIntraday Index endpoints (separately granted, per-index authorization)
If a request returns 403, your token is missing the required scope — contact support to adjust it.

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Rate limits

TierRequests / minuteRequests / day
Free10010,000
Pro1,000100,000
EnterpriseCustomCustom
When a limit is exceeded the API returns 429 Too Many Requests with headers describing the limit that was hit — X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset (seconds until the minute window resets), or the -Day variants for the daily quota. Successful responses do not carry rate-limit headers; back off and retry when you receive a 429.