Discover / base-token-check.fly.dev

base-token-check.fly.dev

■ Challenge detected

Base ERC-20 check before an agent buys or holds a token. Input: one contract address. Output: allow, warn, or block. Block: not a contract, not an ERC-20, zero supply, or the owner or token contract holds at least 50 percent. Warn: 20 to 50 percent held, proxy (EIP-1967, EIP-1167, or implementation()), or bytecode contains mint or pause. A selector does not prove the public can call it. Concentration covers only the owner and the token contract. Not an audit.

x402
Base
USDC

Challenge detected: 1 of the last check
Median response: 36 ms
Last checked: 5 Oct, 05:05 UTC
In our index since: 5 Oct 2026

Endpoint

curl -i https://base-token-check.fly.dev/v1/token-check
# 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/base-token-check.fly.dev

Recent checks

5 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.5 Oct 2026

All 1 checks

When (UTC)	Result	HTTP	Response
5 Oct, 05:05 UTC	Challenge detected	402	36ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 5 Oct, 05:05 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What payment terms does base-token-check.fly.dev 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 base-token-check.fly.dev listed?

In x402 Bazaar. Superstables first indexed it on 5 Oct 2026.

Something wrong on this page? Tell us.