x402basequality 0.75

353 pay-per-call blockchain analytics endpoints across Base, Tron, Bitcoin, XRP, and Kaspa via x402.

Price
per_call
Protocol
x402
Verified
no
Endpoint
https://x402.eruditepay.com/v1/pay/rates

What it does

EruditePay x402 Facilitator exposes 353 x402-payable blockchain analytics endpoints covering Base, Tron, Bitcoin, XRP, and Kaspa. The specific endpoint listed here — /v1/pay/rates — returns current USDC/USDT prices and gas estimates. It is one endpoint within a much larger API surface that includes wallet profiling, token prices and OHLCV history, DEX quotes and trades, whale tracking, stablecoin analytics, NFT metadata, DeFi TVL and yield data, sanctions checks, MEV detection, cross-chain bridge quotes, arbitrage opportunities, token security audits, and merchant payment processing.

Payment is handled via the x402 protocol. Each call requires a micropayment in USDC on Base (eip155:8453) or USDT on Tron. Prices range from $0.001 per call for lightweight lookups (gas prices, block data, token prices) up to $0.10 for premium intelligence reports (wallet risk profiles). Bundle tokens are also available: $0.10 for 60 seconds of unlimited gas oracle access, or $0.50 for 60 seconds of all intel endpoints. The facilitator URL is https://bridge.eruditepay.com, which also serves the OpenAPI spec and x402 discovery document.

The API is organized by chain (Base, Tron, cross-chain) and by domain (wallet, token, DEX, DeFi, exchange flows, monitoring, contracts, market data, bridging, payments). All endpoints return 402 with payment details when called without payment. The operator is Erudite Intelligence LLC, a FinCEN-registered MSB (BSA ID 31000324258137). Settlement is non-custodial at 0.5% per successful settlement.

Capabilities

blockchain-analyticstoken-pricewallet-balancedex-quotedefi-tvlwhale-trackingnft-metadatasanctions-checktoken-security-auditcross-chain-bridgestablecoin-analyticsmev-detectiongas-estimationexchange-flowsmart-money-trackingarbitrage-detectionx402-paymentmulti-chain

Use cases

  • —AI agents querying real-time token prices, gas costs, and wallet balances across Base and Tron
  • —Compliance bots running OFAC sanctions checks and address risk scoring before processing transactions
  • —Trading bots monitoring whale movements, DEX arbitrage opportunities, and volume anomalies
  • —DeFi dashboards aggregating TVL, lending rates, and yield opportunities across protocols
  • —Developers building pay-per-call blockchain data services without API key management

Fit

Best for

  • —Agent-native pay-per-call blockchain data access without subscriptions
  • —Multi-chain analytics spanning Base, Tron, Bitcoin, XRP, and Kaspa
  • —Low-cost micropayment access starting at $0.001 per call
  • —Token security audits, rug-pull scoring, and honeypot detection

Not for

  • —High-frequency trading requiring sub-second latency (x402 payment overhead per call)
  • —Historical bulk data exports or full chain indexing
  • —Chains not covered (e.g., Avalanche, Arbitrum, Polygon are not listed)

Quick start

curl -X GET https://bridge.eruditepay.com/v1/pay/rates
# Returns 402 with x402 payment requirements.
# Pay with USDC on Base to receive current USDC/USDT prices and gas estimates.

Endpoint

URLhttps://x402.eruditepay.com/v1/pay/rates
Transporthttp
Protocolx402
Pay to0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1
CurrencyUSD COIN

Quality

0.75/ 1.00

Full OpenAPI 3.1 spec with 353 endpoints, clear per-call pricing in human-readable USD, and detailed parameter schemas. However, the specific /v1/pay/rates endpoint returned 502 on probe (not a clean 402), no example response bodies are provided in the spec, and the crawled docs pages returned 404s.

Warnings

  • —The /v1/pay/rates endpoint returned HTTP 502 on both GET and POST probes rather than the expected 402 challenge — it may be temporarily unavailable or misconfigured.
  • —No example response bodies are provided in the OpenAPI spec for any endpoint.
  • —The endpoint URL in the listing (x402.eruditepay.com) differs from the server URL in the OpenAPI spec (bridge.eruditepay.com); the bridge URL appears to be the actual API host.
  • —Crawled /docs, /api, /pricing, /README pages all returned 'Cannot GET' errors — documentation beyond the landing page and OpenAPI spec is unavailable.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 01:46:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/Ze54t9