Query smart contract data on Base via x402-paid crypto intelligence endpoint.
What it does
This x402-protected endpoint from Erudite Intelligence LLC provides crypto data intelligence by accepting a smart contract address and returning data about it. The endpoint accepts POST requests with a JSON body containing an `address` field (a contract address) and returns a JSON response with a `success` boolean and a `data` object.
Payment is handled via the x402 protocol (version 2) with two accepted payment options: USDC on Base (eip155:8453) or USDT on Tron (tron:728126428), both priced at 10,000 base units per call — which equals $0.01 (one cent) given 6-decimal stablecoins. The facilitator is Coinbase CDP's x402 endpoint for the Base option. The provider, Erudite Intelligence LLC, also operates the EruditePay x402 Bridge, a multi-chain payment facilitator.
Documentation is sparse: the endpoint description is simply "Crypto data intelligence" and the example output is a generic `{"success": true, "data": {}}` stub. There is no detailed documentation available at the provider's /docs path, and the exact fields returned in the `data` object are unspecified. The schema confirms the input requires a contract address string, but the scope of intelligence returned (ABI, token metadata, transaction history, etc.) is not documented.
Capabilities
Use cases
- —Querying metadata or intelligence about a smart contract by address
- —Automated agent workflows that need on-chain contract information before interacting
- —Building dashboards that aggregate contract-level data across protocols
Fit
Best for
- —Agents needing per-call contract intelligence without API key management
- —Workflows that already support x402 payment protocol
- —Developers who want to pay per query with USDC on Base or USDT on Tron
Not for
- —Bulk or high-volume contract scanning (at $0.01/call costs add up)
- —Use cases requiring well-documented, strongly-typed response schemas
- —Querying non-EVM contract addresses (input schema suggests EVM-style 0x addresses)
Quick start
curl -X POST https://bridge.eruditepay.com/v1/base/contract/call \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}'Example
Request
{
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}Response
{
"data": {},
"success": true
}Endpoint
Quality
The endpoint is live (402 challenge captured) with a valid x402v2 payment structure and basic input/output schema. However, documentation is effectively absent — the /docs path returns 404, the output example is a stub with an empty data object, and the description is a vague three-word phrase. The actual intelligence returned is unknown.
Warnings
- —No documentation available — /docs returns endpoint_not_found
- —Output schema is a stub: example data object is empty with no field descriptions
- —Exact nature of 'crypto data intelligence' returned is unspecified
- —Input schema suggests EVM-style addresses but endpoint path says 'base' — unclear if other chains' contracts are supported
Citations
- —Endpoint returns x402 v2 challenge with USDC on Base and USDT on Tron payment options at 10000 base units eachhttps://bridge.eruditepay.com/v1/base/contract/call
- —Provider is Erudite Intelligence LLC, operates EruditePay x402 Bridge facilitatorhttps://bridge.eruditepay.com
- —Coinbase CDP x402 endpoint is listed as facilitator for Base payment optionhttps://bridge.eruditepay.com/v1/base/contract/call
- —EruditePay Bridge is FinCEN MSB registered with BSA ID 31000324258137https://bridge.eruditepay.com