Compare gas costs across blockchain networks via a paid x402 endpoint.
What it does
The gas-compare endpoint at bridge.eruditepay.com accepts a POST request with a blockchain chain name (e.g. "base", "ethereum", "tron") and returns gas cost comparison data. It is operated by Erudite Intelligence LLC, the same entity behind the EruditePay x402 Bridge — a payment facilitator supporting 20 blockchains. The endpoint is described in its x402 challenge as providing "Crypto data intelligence."
Payment is required per-call via the x402 protocol (version 2). The endpoint accepts two payment options: USDC on Base (eip155:8453) at 10,000 base units ($0.01 per call, since USDC uses 6 decimals), or USDT on Tron (tron:728126428) at 10,000 base units ($0.01 per call). Payment is facilitated through the Coinbase CDP x402 facilitator for the Base option. The maximum payment timeout is 300 seconds for both options.
The response schema indicates a JSON object with a "success" boolean and a "data" object, though the exact structure of the data payload is not documented beyond the example stub `{"success": true, "data": {}}`. No OpenAPI spec or detailed documentation was found for this specific endpoint — the provider's /docs path returns a 404. The EruditePay Bridge landing page focuses on the facilitator service (verify/settle) rather than data intelligence endpoints, so the precise fields returned by gas-compare remain unclear.
Capabilities
Use cases
- —Compare gas fees across multiple blockchain networks before submitting transactions
- —Build dashboards showing real-time gas cost differences between chains
- —Optimize cross-chain bridging by selecting the cheapest network at a given moment
- —Integrate gas cost data into DeFi routing algorithms
Fit
Best for
- —Developers building cross-chain applications who need gas cost intelligence
- —DeFi protocols optimizing transaction routing across chains
- —Wallet applications displaying gas fee comparisons to users
Not for
- —Users needing free gas data — every call costs $0.01
- —Applications requiring detailed gas estimation for specific contract calls (this appears to be a comparison endpoint, not a gas estimator)
Quick start
curl -X POST https://bridge.eruditepay.com/v1/multi/gas-compare \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{"chain": "base"}'Example
Request
{
"chain": "base"
}Response
{
"data": {},
"success": true
}Endpoint
Quality
The endpoint is live (returns a valid x402 402 challenge) with clear pricing and payment options. However, the response data structure is essentially undocumented — the example output is just an empty object stub. No OpenAPI spec exists, the /docs path 404s, and the landing page does not describe this data intelligence endpoint. The input schema is minimal (just a chain string).
Warnings
- —Response data structure is undocumented — the example output only shows an empty data object
- —No OpenAPI specification or detailed API documentation available for this endpoint
- —The provider's /docs endpoint returns 404
- —The exact fields and depth of gas comparison data returned are unknown
Citations
- —Endpoint is operated by Erudite Intelligence LLChttps://bridge.eruditepay.com
- —Accepts USDC on Base and USDT on Tron at 10,000 base units ($0.01) per callhttps://bridge.eruditepay.com/v1/multi/gas-compare
- —EruditePay Bridge supports 20 blockchainshttps://bridge.eruditepay.com
- —FinCEN MSB registered, BSA ID 31000324258137https://bridge.eruditepay.com
- —Payment facilitated via Coinbase CDP x402 facilitator for Base optionhttps://bridge.eruditepay.com/v1/multi/gas-compare