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Delx Base Block Time Estimate
x402
Delx Base Block Time Estimate is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Estimates the number of Base blockchain blocks that will be produced in a given duration, using a configurable assumed block time.
Price / call$0.001
Success—
StatusUnknown
How this service works
Base Block Time Estimate: Base Block Time Estimate estimates block count from a caller-supplied duration and block-time assumption from bounded caller-supplied values without an external provider. Call Base Block Time Estimate before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Block Time Estimate as versioned determi…
Output
Returns a JSON object with the estimated number of Base blockchain blocks for the given duration (estimated_blocks), the assumed block time used (assumed_block_seconds), a pass/fail status, operation identifier, and an evidence object confirming no data retention and no external calls were made during the computation.
Example use cases
Smart contract timeout planning
“I'm writing a smart contract that needs to lock funds for 10 minutes — how many Base blocks should I use for the lock duration if blocks average 2 seconds each?”
EVM preflight check for scheduled task
“I have a batch job that runs every 300 seconds on Base. Can you estimate how many blocks that window covers, assuming a 2-second block time?”
Block window sizing for on-chain event
“We want to set a voting window of 1 hour on a Base chain governance contract — give me the estimated block count assuming the standard 2-second block time.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/base-block-time-estimateWhen to prefer
Choose this endpoint when you need a fast, deterministic, in-memory calculation of how many Base blockchain blocks correspond to a given wall-clock duration — especially during EVM smart contract preflight planning, scheduling time-locked transactions, or sizing on-chain event windows. Prefer it over manual arithmetic when you want a verifiable, auditable result with no external data dependencies.
Side effects
- Missing or invalid duration_seconds — returns a validation error
- Non-numeric assumed_block_seconds — returns schema error
- Zero or negative duration_seconds — may return zero blocks or an error
- Network or service timeout — returns HTTP 5xx
- Payment not included or insufficient — returns HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| duration_seconds | integer | Duration Seconds supplied to Base Block Time Estimate; used only for this bounded calculation and processed in memory without retention. |
| assumed_block_seconds | number | Assumed Block Seconds supplied to Base Block Time Estimate; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"estimated_blocks": 60,
"assumed_block_seconds": 2
},
"schema": "delx/util-base-block-time-estimate/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "6c08b5fb6dac5adebbd5bd7d6a63cb3dbe181bd97604c3c6e3b1d4a9ea7e7615",
"external_calls": 0
},
"operation": "evm_preflight:base_block_time_estimate"
}
}Tags
x402
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