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Delx Price Ceiling Check
x402
Delx Price Ceiling Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Checks whether a given USDC price falls within a buyer-specified ceiling, optionally with a buffer percentage, and returns a deterministic pass/fail result.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether a published USDC price stays under a buyer ceiling — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that alread…
Output
Returns deterministic machine-readable JSON indicating whether the supplied price_usdc passes or fails the ceiling_usdc threshold, factoring in any optional buffer_pct. The result is advisory and stateless — no side effects, no data retention.
Example use cases
Preflight payment budget check
“I'm about to pay 0.003 USDC for an API call — can you verify that's under my ceiling of 0.005 USDC before I authorize it? Use a 5% buffer.”
Agent spend limit enforcement
“My agent is about to spend 0.08 USDC on a service but I've set a hard ceiling of 0.075 USDC with no buffer — check if this will pass or fail so I can decide whether to proceed.”
Dynamic pricing gate for automation
“Check whether a price of 0.02 USDC is within my ceiling of 0.025 USDC using a 0% buffer, so I can decide if my workflow should continue automatically.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/price-ceiling-checkWhen to prefer
Use this endpoint when an AI agent needs a fast, cheap, stateless preflight check to confirm a USDC price is within a buyer-specified budget ceiling before authorizing a payment or continuing a workflow. Prefer it over manual comparison logic when you need a standardized, machine-readable JSON result with optional buffer tolerance built in.
Side effects
- Missing required fields (price_usdc or ceiling_usdc) result in a validation error
- Non-numeric or negative values for price or ceiling may return an error response
- buffer_pct outside expected integer range may produce unexpected results
- Network timeout returns no result; caller must retry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| buffer_pct | integer | Input field: buffer pct. |
| price_usdc | number | Input field: price usdc. |
| ceiling_usdc | number | Input field: ceiling usdc. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"schema": "delx/util-price-ceiling-check/v1",
"status": "within_budget",
"allowed": true,
"buffer_pct": 0,
"price_usdc": 0.01,
"ceiling_usdc": 0.02,
"headroom_usdc": 0.01,
"effective_ceiling_usdc": 0.02
}
}Tags
x402
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