Retrieve historical token price data on Base via x402 micropayment
What it does
This x402-enabled endpoint returns historical price data for tokens on the Base blockchain. Callers POST a JSON body containing a token address (or symbol) and receive price history in response. The endpoint is operated by Erudite Intelligence LLC and described as "Crypto data intelligence."
Payment is required per-call via the x402 protocol (version 2). Two payment options are accepted: USDC on Base (network eip155:8453) at $0.01 per request, or USDT on Tron (network tron:728126428) at $0.01 per request. Settlement is facilitated through the EruditePay Bridge, which supports the Coinbase CDP facilitator for the Base payment path. The endpoint accepts POST requests with a JSON body containing a `token` field (a token contract address or symbol).
Documentation is sparse — the example output schema shows only `{"success": true, "data": {}}` with no detail on the structure of the returned price history (e.g., time granularity, fields, date range). There is no OpenAPI spec, and the docs URL returns a 404. The endpoint is confirmed live via a 402 challenge response.
Capabilities
Use cases
- —Fetching historical price charts for tokens deployed on Base
- —Building portfolio tracking tools that need token price timelines
- —Backtesting trading strategies with historical token price data
- —Powering dashboards that display token price trends
Fit
Best for
- —Agents or apps needing on-demand token price history on Base
- —Developers building crypto analytics tools
- —Micropayment-friendly price data queries at $0.01 per call
Not for
- —Real-time streaming price feeds (this is a request/response endpoint)
- —Non-crypto or traditional equity/forex price data
- —Users who need detailed documentation before integrating — docs are currently sparse
Quick start
curl -X POST https://bridge.eruditepay.com/v1/base/token/price-history \
-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 confirmed live via a valid x402 402 challenge with clear pricing and payment options. However, documentation is effectively absent (docs URL returns 404), the output schema example is a stub with an empty data object, and there is no OpenAPI spec. The actual shape of the price history response must be discovered empirically.
Warnings
- —No OpenAPI or detailed API documentation available — /docs returns 404
- —Output example is a stub: {"success": true, "data": {}} with no detail on price history fields, granularity, or date range
- —The token field description says 'Token address or symbol' but it is unclear which symbols are supported or whether this works only for Base-deployed tokens
- —No rate limit or usage quota information provided
Citations
- —Endpoint returns x402 v2 challenge with USDC on Base (amount 10000 = $0.01) and USDT on Tron (amount 10000 = $0.01)https://bridge.eruditepay.com/v1/base/token/price-history
- —Operated by Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)https://bridge.eruditepay.com
- —EruditePay Bridge supports 20 blockchains and charges 0.5% per settlementhttps://bridge.eruditepay.com
- —Endpoint description is 'Crypto data intelligence'https://bridge.eruditepay.com/v1/base/token/price-history