Query OKLink blockchain explorer data for 40+ L1/L2 networks and current token prices via x402 payment.
What it does
This endpoint exposes an OKLink Explorer API agent through the Questflow x402 payment gateway. OKLink provides on-chain data infrastructure covering block data from over 40 mainstream Layer 1 and Layer 2 networks and token data from more than 200 blockchain networks, including over 7 million tokens and NFTs. The agent can answer queries about current cryptocurrency prices on centralized exchanges, on-chain transaction data, and block information. It follows RESTful conventions and is accessed by sending a natural-language prompt as a POST request with an x402 payment header.
The agent is specifically limited to current/real-time token prices and cannot retrieve historical price data (e.g., prices from last week or last month). For historical prices, the description directs users to an alternative "Aggregated Web3 Information Agent." Similarly, for tokens traded on decentralized exchanges, users are advised to use a separate CoinGecko agent. Payment is made in USDC on the Base network, with a maximum charge of 0.1 USDC per request (100000 in raw units, 6 decimals). The endpoint returns a plain string response from the agent.
The service is hosted on Questflow's platform, which provides an x402-compatible payment layer for AI agents. No OpenAPI schema or dedicated documentation page was found for this specific agent endpoint; the only schema available is the minimal outputSchema embedded in the x402 challenge response.
Capabilities
Use cases
- —Querying current token prices on centralized exchanges
- —Looking up block and transaction data across 40+ L1/L2 networks
- —Retrieving token metadata and NFT information from 200+ blockchain networks
- —Building automated agents that need real-time on-chain data
- —Checking wallet balances or transaction histories
Fit
Best for
- —Agents needing real-time crypto prices from centralized exchanges
- —Developers querying multi-chain block and token data programmatically
- —Automated workflows requiring on-chain data without managing API keys directly
Not for
- —Historical token price lookups (not supported by this agent)
- —Decentralized exchange token queries (use CoinGecko agent instead)
- —High-frequency trading requiring sub-second latency
Quick start
curl -X POST https://api.questflow.ai/x402/agent/qrn:agent:687df7c0b234010b7d331c25 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{"input": "What is the current price of Bitcoin?"}'Example
Request
{
"input": "What is the current price of Ethereum on centralized exchanges?"
}Response
{
"response": "The current price of Ethereum (ETH) is approximately $3,450.12 USD on major centralized exchanges."
}Endpoint
Quality
No OpenAPI spec, no dedicated documentation, and no example responses are available. The only schema comes from the x402 challenge's minimal outputSchema. The agent description is informative but the endpoint is essentially a black box with a single input/output string interface. The example response is entirely inferred.
Warnings
- —No OpenAPI or dedicated API documentation found — /docs, /api, /pricing, /README all return 404
- —Output schema is minimal (string in, string out) with no structured data format documented
- —Historical token prices are explicitly unsupported
- —Example response is fabricated for illustration; actual response format is unknown
- —The x402 challenge description contains routing instructions meant for multi-agent orchestration, not end-user documentation
Citations
- —OKLink supports block data from over 40 mainstream L1 and L2 networks and token data from more than 200 blockchain networks, encompassing over 7 million tokens and NFTshttps://api.questflow.ai/x402/agent/qrn:agent:687df7c0b234010b7d331c25
- —Payment is in USDC on Base network with maxAmountRequired of 100000 (0.1 USDC)https://api.questflow.ai/x402/agent/qrn:agent:687df7c0b234010b7d331c25
- —OKLink cannot retrieve historical token priceshttps://api.questflow.ai/x402/agent/qrn:agent:687df7c0b234010b7d331c25
- —Questflow is an AI agent platform aggregating onchain marketshttps://api.questflow.ai