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Solana Next Slot Leaders
x402
Solana Next Slot Leaders is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Returns the upcoming Solana slot leader windows (validator identity, vote account, stake, commission, timing) merged into 4-slot groups so transactions can be routed to the next block producers.
Price / call$0.001
Success—
StatusUnknown
How this service works
The next Solana slot leaders from getSlotLeaders, merged into 4-slot leader windows: validator identity, vote account, active stake, commission, first/last slot and seconds until each window starts. Route time-critical transactions to the upcoming leaders. ?limit=1..25.
Output
A JSON object containing the current slot number and an array of upcoming 4-slot leader windows, each with: validator identity public key, vote account address, active stake (lamports), commission percentage, first and last slot of the window, and seconds until the window begins.
Example use cases
Time-critical transaction routing
“I need to submit a high-priority Solana transaction — can you pull the next 10 slot leader windows so I know which validator to target and how many seconds I have before each window opens?”
Validator commission monitoring
“Give me the next 15 upcoming Solana leader windows and show me each validator's commission rate and active stake so I can see which upcoming leaders are most attractive.”
MEV or priority fee strategy
“Pull the next 8 Solana slot leader windows for me — I want to see which validators are coming up, when their windows start, and how much stake they have so I can decide where to send my transaction for the best chance of inclusion.”
Technical details
Endpoint
GEThttps://mintintel.35-171-220-195.sslip.io/v1/sol/next-leaders?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time, pre-aggregated Solana slot leader data in 4-slot windows with validator metadata (stake, commission, vote account) already merged in — saving you multiple raw RPC calls. Prefer it over raw getSlotLeaders when you need timing (seconds until window) and validator details in one shot for transaction routing or scheduling.
Side effects
- limit out of range (must be 1–25) returns a 400 validation error
- RPC node unavailable returns a 502 or timeout
- stale data if the Solana RPC is lagging behind the chain tip
- payment not attached or insufficient USDC returns a 402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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