Discover / keyring-agent.blockchhub.link

keyring-agent

■ Challenge detected

Pay the add-pool execution fee (add liquidity to a Uniswap V3 pool)

x402
Base
USDC
Blockchain

Listed price: $3
Challenge detected: 6 of the last 10 checks
Median response: 487 ms
Last checked: 16 Oct, 18:49 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://keyring-agent.blockchhub.link/api/add-pool
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

5 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://keyring-agent.blockchhub.link/api

GET/send-native$0.05Pay the send-native execution fee (native coin transfer)
GET/send-nft$0.05Pay the send-nft execution fee (ERC-721/1155 transfer)
GET/add-pool$3Pay the add-pool execution fee (add liquidity to a Uniswap V3 pool)
GET/send-token$0.05Pay the send-token execution fee (ERC-20 transfer)
GET/supply-usdc$0.1Pay the supply-usdc execution fee (supply USDC to a lending market)

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 5 of 5 listed endpoints.

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

Recent checks

28 Sept 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.16 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
16 Oct, 18:49 UTC	Challenge detected	402	523ms
15 Oct, 14:11 UTC	Challenge detected	402	904ms
14 Oct, 08:45 UTC	Challenge detected	402	649ms
13 Oct, 20:45 UTC	No challenge detected	200	405ms
11 Oct, 19:34 UTC	No challenge detected	200	397ms
10 Oct, 03:32 UTC	No challenge detected	200	444ms
8 Oct, 21:32 UTC	No challenge detected	200	528ms
7 Oct, 15:42 UTC	Challenge detected	402	422ms
6 Oct, 15:31 UTC	Challenge detected	402	450ms
28 Sept, 05:02 UTC	Challenge detected	402	381ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 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 price is recorded for keyring-agent?

Its listed price is $3.

What payment terms does keyring-agent 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 keyring-agent listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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