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Base URL

https://staging-api.astral.global

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Endpoints

# Health check
curl https://staging-api.astral.global/health

# API info
curl https://staging-api.astral.global/

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Configuration

SettingValue
ChainBase Sepolia (84532)
EAS Contract0x4200000000000000000000000000000000000021
Attester Address0x590fdb53ed3f0B52694876d42367192a5336700F

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Example Request

curl -X POST https://staging-api.astral.global/compute/v0/distance \
  -H "Content-Type: application/json" \
  -d '{
    "chainId": 84532,
    "from": {"type": "Point", "coordinates": [-122.4194, 37.7749]},
    "to": {"type": "Point", "coordinates": [-73.9352, 40.7128]}
  }'
chainId only tells the service which EAS chain to format the delegated attestation for, so the result could be submitted onchain later. Nothing here touches a blockchain unless you choose to submit the result yourself — the call above just returns a signed result.

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Verifying signatures

What a matching signature proves. Checking the attester address proves the result was signed by a key Astral controls. It does not, on its own, prove the result was produced inside an independently attested TEE enclave: Astral has run the service on real TEE hardware in test deployments but does not currently fund continuous attested operation. Treat the staging signer as “Astral’s staging key,” not as a hardware-attestation guarantee. To evaluate against real TEEs, reach out at contact@astral.global.
All attestations from the staging service are signed by the attester address above. To verify a result came from Astral’s staging environment: 
require(attestation.attester == 0x590fdb53ed3f0B52694876d42367192a5336700F, "Not from Astral staging");

const ASTRAL_STAGING_SIGNER = '0x590fdb53ed3f0B52694876d42367192a5336700F';
// Verify the EAS attestation's attester field matches

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Notes

  • No authentication required
  • Rate limited to 100 requests/hour per IP
  • Attestations are signed with the staging key — a different key will be used for production