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Delx CIDR Contains
x402
Delx CIDR Contains is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Check whether a given IP address falls within a specified CIDR network range.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether an IP is inside a CIDR network for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.
Output
A boolean or structured result indicating whether the given IP address is contained within the specified CIDR network, along with any relevant metadata such as the parsed network range or confirmation of the match.
Example use cases
Firewall allowlist enforcement
“Can you check if 203.0.113.77 falls inside our trusted CIDR block 203.0.113.0/24 before I allow it through the firewall?”
VPN subnet membership check
“Does the IP 10.8.0.55 belong to our VPN subnet 10.8.0.0/20? I need to confirm before granting internal access.”
Cloud provider IP range validation
“I have a request coming from 35.190.0.15 — is that inside Google Cloud's range 35.190.0.0/15?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/cidr-contains?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a fast, reliable, single-call check to determine IP-to-CIDR membership without running local networking libraries — especially useful in serverless or sandboxed agent environments that cannot execute native IP math. Prefer it over general-purpose code execution when you need a lightweight, auditable, paid-per-call microservice with no infrastructure setup.
Side effects
- Invalid IP address format returns an error
- Malformed CIDR notation (e.g. missing prefix length) returns a validation error
- IPv6 address tested against IPv4 CIDR (or vice versa) may return mismatch or error
- Missing required fields (IP or CIDR) returns a 400-level error
- Payment failure or insufficient USDC balance returns a 402 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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