Simulate Base blockchain transactions via x402-paid crypto data intelligence endpoint.
What it does
This endpoint at bridge.eruditepay.com provides transaction simulation on the Base network (eip155:8453). It accepts a POST request with a transaction hash and a token/contract address, returning simulation results as JSON. The endpoint is operated by Erudite Intelligence LLC and is gated behind the x402 payment protocol (v2).
Payment is accepted in two ways: USDC on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) or USDT on Tron (TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t). The per-call cost is 10,000 base units, which for 6-decimal stablecoins equals $0.01 (one cent) per request. The x402 facilitator used is Coinbase CDP for the Base payment path. The endpoint description in the x402 challenge is "Crypto data intelligence."
Documentation is sparse — the provider's /docs path returns a 404, and the only schema available comes from the x402 Bazaar extension embedded in the 402 challenge. The input schema specifies two fields: `hash` (a transaction hash) and `address` (a token or contract address to analyze). The output is a JSON object with a `success` boolean and a `data` object whose structure is not further documented. The broader EruditePay Bridge site describes itself as an x402 payment facilitator supporting 20 blockchains, registered as a FinCEN MSB (BSA ID 31000324258137), and operating non-custodially.
Capabilities
Use cases
- —Simulate a Base blockchain transaction before execution to preview outcomes
- —Analyze a token or contract address for transaction behavior
- —Integrate pay-per-call transaction intelligence into trading bots or wallets
- —Pre-flight check transactions to detect potential failures or unexpected results
Fit
Best for
- —Developers building on Base who need per-call transaction simulation
- —Agents or bots that need programmatic tx previews without monthly subscriptions
- —Applications requiring low-cost ($0.01/call) on-demand crypto data intelligence
Not for
- —Users needing free or bulk transaction simulation at high volume
- —Projects requiring detailed, well-documented API schemas and response formats
- —Non-Base-chain transaction simulation (endpoint is Base-specific)
Quick start
curl -X POST https://bridge.eruditepay.com/v1/base/tx/simulation \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{"hash": "0xabc...123", "address": "0xdef...456"}'Example
Request
{
"hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"address": "0x0000000000000000000000000000000000000000"
}Response
{
"data": {},
"success": true
}Endpoint
Quality
The endpoint is live (402 challenge captured) with a clear Bazaar schema for input, but the output schema is essentially empty (just `{success, data: {}}`). No dedicated documentation exists (/docs returns 404), and the actual response structure for `data` is undocumented. Pricing is clear at $0.01/call.
Warnings
- —No dedicated API documentation available — /docs returns 404
- —Output schema is a stub: the `data` field structure is completely undocumented
- —The endpoint description is generic ('Crypto data intelligence') and does not detail what simulation results are returned
- —Cannot verify actual response format without a paid call
Citations
- —Endpoint returns x402 v2 challenge with USDC on Base and USDT on Tron payment options at 10,000 base units ($0.01)https://bridge.eruditepay.com/v1/base/tx/simulation
- —Operator is Erudite Intelligence LLC, FinCEN MSB registered with BSA ID 31000324258137https://bridge.eruditepay.com
- —EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement for its facilitator servicehttps://bridge.eruditepay.com
- —Input schema requires hash (transaction hash) and address (token or contract address) fieldshttps://bridge.eruditepay.com/v1/base/tx/simulation