Discover / api.agent-preflight.com

api.agent-preflight.com

□ No challenge detected

Pre-execution decision for a metered search or browse tool call. Evaluates the proposal; does not execute the external tool.

x402
Base
USDC

Challenge detected: 0 of the last check
Last checked: 4 Oct, 17:05 UTC
In our index since: 4 Oct 2026

Endpoint

curl -i https://api.agent-preflight.com/v0.2/preflight/tool-call
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.agent-preflight.com

Recent checks

4 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.4 Oct 2026

All 1 checks

When (UTC)	Result	HTTP	Response
4 Oct, 17:05 UTC	No challenge detected	405	142ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 4 Oct, 17:05 UTC, we detected no payment challenge.

What payment terms does api.agent-preflight.com advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is api.agent-preflight.com listed?

In x402 Bazaar. Superstables first indexed it on 4 Oct 2026.

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