api.liquidagent.ai

Name: api.liquidagent.ai
Price: 0.001 USDC
Availability: InStock

Money tools for AI agents over x402: a one-signature USDC bridge from Base to 16 chains, the live Polymarket Price to Beat, tokenized US stocks from $1, gas paid in USDC, and gift search in partner shops. Remote MCP server. No account, no API key.

SearchLiveeip155:8453Exactvia facilitator:thirdweb

https://api.liquidagent.ai/v1/shop/mintandmarquee/search

Calls · 30d

5↑ 11%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.

$2.47

Verified settled volume

97 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0010

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "name": "USDC",
        "chainId": 5042,
        "version": "2",
        "verifyingContract": "0x3600000000000000000000000000000000000000"
      },
      "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:5042",
      "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "chainId": 137,
        "version": "2",
        "verifyingContract": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
      },
      "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:137",
      "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
    "tags": [
      "shopping",
      "gifts",
      "collectibles",
      "3d-printing",
      "merch"
    ],
    "iconUrl": "https://api.liquidagent.ai/icon.png",
    "mimeType": "application/json",
    "description": "Search Mint & Marquee for gifts and collectibles: products that match what the person wants, under their budget, with price, photo, a short description and a link to buy. Custom 3D printed collectibles and gifts: figurines, statues, keychains, bag tags and branded merch. Soccer, anime, crypto, hypebeast and ancient-art collections.",
    "serviceName": "Liquid Agent: Mint & Marquee gift search"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "What to find, in words (e.g. soccer gift, anime figure)",
            "max": 0,
            "limit": 0
          }
        },
        "output": {
          "type": "json",
          "example": {
            "shop": {
              "name": "Mint & Marquee"
            },
            "count": 1,
            "products": [
              {
                "url": "https://api.liquidagent.ai/go/mintandmarquee/world-cup-trophy-keychains",
                "name": "World Cup Trophy Keychains",
                "image": "https://...",
                "priceUsd": 9.99
              }
            ],
            "foundWith": {
              "url": "https://liquidagent.ai",
              "name": "Liquid Agent"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "What to find, in words (e.g. soccer gift, anime figure)"
                  },
                  "max": {
                    "type": "number",
                    "description": "Optional price ceiling in USD"
                  },
                  "limit": {
                    "type": "number",
                    "description": "1-10, default 5"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "type": {
                "const": "json"
              },
              "example": {
                "shop": {
                  "name": "Mint & Marquee"
                },
                "count": 1,
                "products": [
                  {
                    "url": "https://api.liquidagent.ai/go/mintandmarquee/world-cup-trophy-keychains",
                    "name": "World Cup Trophy Keychains",
                    "image": "https://...",
                    "priceUsd": 9.99
                  }
                ],
                "foundWith": {
                  "url": "https://liquidagent.ai",
                  "name": "Liquid Agent"
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

1000units

on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0x487b…75e90
Token contract: 0x3600…00000
Payment window: 1 minute
Returns: application/json

0.001USDC≈ $0.001 USD

on Base · exact scheme

Pay 0.001 USDC on Base to 0x487b…75e90. The signed payment is good for 1 minute.

Paid to: 0x487b…75e90
USD Coin contract: 0x8335…02913
Payment window: 1 minute
As published: 1000 smallest units
Returns: application/json

1000units

on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0x487b…75e90
Token contract: 0x3c49…c3359
Payment window: 1 minute
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "USDC",
      "chainId": 5042,
      "version": "2",
      "verifyingContract": "0x3600000000000000000000000000000000000000"
    },
    "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
    "scheme": "exact",
    "network": "eip155:5042",
    "mimeType": "application/json",
    "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
    "description": "",
    "maxAmountRequired": "1000",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "chainId": 8453,
      "version": "2",
      "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    },
    "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
    "description": "",
    "maxAmountRequired": "1000",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "chainId": 137,
      "version": "2",
      "verifyingContract": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
    },
    "payTo": "0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90",
    "scheme": "exact",
    "network": "eip155:137",
    "mimeType": "application/json",
    "resource": "https://api.liquidagent.ai/v1/shop/mintandmarquee/search",
    "description": "",
    "maxAmountRequired": "1000",
    "maxTimeoutSeconds": 60
  }
]

Provenance

Seen in the source catalog: 2026-10-11 07:18Z
Last indexed by Roundhouse: 2026-10-19 21:45Z
Last enriched (probe, favicon, geo): 2026-10-08 05:46Z
x402 version: 1
Max timeout: 60s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service api.liquidagent.ai and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.liquidagent.ai'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.liquidagent.ai/v1/shop/mintandmarquee/search, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.