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LION Credits Purchase (x402 Keyless)
x402
LION Credits Purchase (x402 Keyless) is a paid API for AI agents from lion-x402.lionmaster-operations.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Purchases a LION session credit bundle via x402 micropayment, returning a session token and credit balance usable for subsequent keyless data/RPC calls
Price / call$0.1
Success—
StatusUnknown
How this service works
Keyless off-chain and on-chain data for AI agents. No API key, no signup - payment is the only gate. Pay-per-call in USDC on Base via x402.
Output
Returns a JSON object with an asset_id (e.g. CREDITS_PURCHASE_001), balance_micro indicating the purchased credit balance in micro-units (e.g. 100000), and a session_token (lct_...) that can be used to authenticate subsequent LION data/RPC calls without a traditional API key.
Example use cases
Bootstrap agent blockchain data access
“Set up a LION session for my agent so it can query on-chain data without managing API keys — just pay whatever it costs in USDC on Base and get me a session token to use.”
Fund autonomous RPC calls for crypto app
“I need my agent to make keyless RPC calls to Base for smart contract interactions — buy a LION credits bundle with $0.25 USDC micropayment and give me the session token so it's ready to go.”
Enable pay-per-call data queries instantly
“My agent needs immediate access to LION's off-chain and on-chain data without signing up for anything — just charge my Base wallet the minimum amount, get a session token, and let it start querying right away.”
Technical details
Endpoint
GEThttps://lion-x402.lionmaster-operations.workers.dev/api/x402/credits-purchase-jsonWhen to prefer
Use this endpoint when an AI agent needs to bootstrap keyless access to LION's off-chain and on-chain data or RPC endpoints. It is the entry point for any LION session: pay once in USDC on Base via x402, receive a session token, and use that token for all subsequent LION API calls without registering or managing API keys. Prefer this over traditional API-key-based data providers when operating in a crypto-native, agent-first environment where programmatic micropayments are available.
Side effects
- Payment not received or insufficient USDC — x402 payment handshake fails, 402 response returned
- Payment on wrong chain (not Base) — transaction rejected
- Session token not returned if payment confirmation times out
- Duplicate payment attempt may create a new session rather than topping up existing one
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"asset_id": "CREDITS_PURCHASE_001",
"balance_micro": "100000",
"session_token": "lct_..."
}
}Tags
x402
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