Cross-chain arbitrage opportunity detection via x402-paid crypto data intelligence endpoint
What it does
This x402-gated endpoint at bridge.eruditepay.com provides crypto arbitrage opportunity data. Operated by Erudite Intelligence LLC, the endpoint accepts a POST request with a token address (or pair identifier) and returns arbitrage opportunity information. The endpoint is described as "Crypto data intelligence" in its x402 challenge.
Payment is accepted via two options: USDC on Base (eip155:8453) at $0.01 per call, or USDT on Tron (tron:728126428) at $0.01 per call. Both use the x402 v2 protocol with the "exact" payment scheme. The facilitator for the Base payment option is Coinbase CDP. The maximum payment timeout is 300 seconds for both options.
The endpoint is live and returns a proper 402 challenge. However, documentation is extremely sparse — the only schema information comes from the Bazaar extension embedded in the x402 challenge. The input takes a JSON body with a "token" field (a token address or pair identifier), and the output example is a generic `{"success": true, "data": {}}` stub, giving no insight into the actual structure of arbitrage opportunity data returned. The provider's main site (bridge.eruditepay.com) primarily documents the x402 facilitator/bridge service rather than this specific data intelligence endpoint, and the docs subdomain returns a 404-equivalent error.
Capabilities
Use cases
- —Detect arbitrage opportunities for a given token across chains or DEXes
- —Automated trading bot integration for cross-chain arbitrage strategies
- —Portfolio monitoring tools that surface profitable token movements
- —DeFi dashboard enrichment with real-time arbitrage signals
Fit
Best for
- —Crypto trading bots needing programmatic arbitrage data
- —DeFi developers building cross-chain arbitrage tools
- —Agents that need pay-per-call access to arbitrage intelligence without subscriptions
Not for
- —Users needing historical arbitrage data or backtesting (no evidence of historical support)
- —Non-crypto use cases or general financial data needs
- —Users who need detailed documentation before integrating (docs are minimal)
Quick start
curl -X POST https://bridge.eruditepay.com/v1/base/arb/opportunities \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}'Example
Request
{
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}Response
{
"data": {},
"success": true
}Endpoint
Quality
The endpoint is live and returns a valid x402 v2 challenge with clear pricing. However, documentation is extremely thin — the output example is a stub with an empty data object, there is no OpenAPI spec, and the provider's docs page returns an error. The actual shape of arbitrage opportunity data is unknown.
Warnings
- —Output schema example is a stub ({"data": {}}) — actual response structure is undocumented
- —Provider docs endpoint (bridge.eruditepay.com/docs) returns endpoint_not_found error
- —No OpenAPI specification available
- —The Bazaar schema describes the meta-structure (input/output types) rather than the actual data payload
Citations
- —Endpoint is described as 'Crypto data intelligence' in the x402 challengehttps://bridge.eruditepay.com/v1/base/arb/opportunities
- —Payment accepted: USDC on Base at 10000 base units ($0.01) and USDT on Tron at 10000 base units ($0.01)https://bridge.eruditepay.com/v1/base/arb/opportunities
- —Operated by Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)https://bridge.eruditepay.com
- —Facilitator for Base payments is Coinbase CDP (api.cdp.coinbase.com)https://bridge.eruditepay.com/v1/base/arb/opportunities
- —Input accepts a 'token' field described as 'Token address or pair identifier'https://bridge.eruditepay.com/v1/base/arb/opportunities