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Delx EVM Blob Count Check
x402
Delx EVM Blob Count Check 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).
Validates whether an EVM transaction blob count is within a specified maximum limit, returning a pass/fail result with evidence metadata.
Price / call$0.001
Success—
StatusUnknown
How this service works
EVM Blob Count Check: EVM Blob Count Check checks caller-supplied blob count against a transaction limit from bounded caller-supplied values without an external provider. Call EVM Blob Count Check 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 EVM Blob Count Check as versioned deterministic JSON. Price: $0.001 USDC vi…
Output
Returns a JSON object with the result object containing blob_count, maximum, and within_limit boolean; a status field ('pass' or 'fail'); and an evidence block with input SHA-256 hash, retained flag (always false), and external_calls count confirming no data is stored or forwarded.
Example use cases
Preflight blob count before EVM send
“Before I submit this EVM transaction, check whether my blob count of 4 is within the maximum of 6 — tell me if it's within the limit.”
Agent guard rail for EIP-4844 blobs
“I'm building a transaction pipeline that uses EIP-4844 blobs. Can you verify that a blob count of 3 doesn't exceed the maximum of 6 so my agent knows it can safely proceed?”
Batch transaction validation for blob ceiling
“My agent is about to send a blob transaction with 5 blobs and the network cap is 6 — can you run the EVM blob count check and confirm whether it passes?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/evm-blob-count-checkWhen to prefer
Use this endpoint when you need a lightweight, auditable, zero-retention preflight check to verify that an EVM transaction's blob count does not exceed a specified maximum before submission. Prefer it over manual comparison logic when you need a tamper-evident SHA-256 evidence trail and explicit pass/fail status for agent decision-making in EVM blob transaction pipelines.
Side effects
- Missing required fields (blob_count or maximum not provided) result in validation error
- Non-integer values for blob_count or maximum cause schema rejection
- Negative integers may produce unexpected comparison results
- Network or service unavailability returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| maximum | integer | Maximum supplied to EVM Blob Count Check; used only for this bounded calculation and processed in memory without retention. |
| blob_count | integer | Blob Count supplied to EVM Blob Count Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"maximum": 6,
"blob_count": 2,
"within_limit": true
},
"schema": "delx/util-evm-blob-count-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "b549f9e7119c69aa37ac661b862dfefbba90fa2ca0d8fa28e49d03aec7f75485",
"external_calls": 0
},
"operation": "evm_preflight:evm_blob_count_check"
}
}Tags
x402
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