Base new launches + sell test

Name: Base new launches + sell test
Price: 0.01 USDC
Availability: InStock

New token launches on Base with a real sell test: every new pool (Uniswap v2/v3/v4, Aerodrome) with a buy and full sell simulated in one block, graded BASED, MID, COOKED or RADIOACTIVE. Poll with since=<cursor>: you pay only for new rows. New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or…

TradingLiveeip155:8453Exactvia cdp

https://apexfaucet.xyz/api/x402/base-launch-feed

New tokensToken launchesHoneypotBaseSniping

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far.

$6.19

Verified settled volume

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

$0.010

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

Last called 2026-10-15 01:09Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xd334ab5151c624cada654854e2879903dc4217ed

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

APEX FaucetERC-8004

Live 402 challenge

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

{
  "note": "X1 is a Solana fork. The same address (HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ) receives funds on both chains. Solana-native agents can pay USDC without bridging anything.",
  "error": "Payment required",
  "hello": "We see you, roundhouse-indexer. You have called us 155 times since 2026-09-27. Thank you for coming.",
  "accepts": [
    {
      "rpc": "https://api.mainnet-beta.solana.com",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
      },
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "10000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": "solana-mainnet",
      "network": "solana",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.010",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/base-launch-feed",
      "priceMinor": 10000,
      "description": "New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or RADIOACTIVE (a honeypot), or UNTESTED when no pool can be simulated (never guessed; WETH is not graded; a hooked v4 pool whose buy reverts is UNTESTED, not RADIOACTIVE). Each row has the token, its pool, liquidity, owner powers, round-trip cost and the block the test ran at. Poll with ?since=<nextSince>: a cursor, so a bot pays only for new rows. Optional limit (1 to 100) and min_liq (USD). A feed older than 15 minutes is refused before payment. Facts measured at firstSeenAt, never advice. One more rule: no wallet of ours trades a token within 15 minutes of it appearing here.",
      "networkName": "solana",
      "validForSec": 300,
      "networkCaip2": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "20",
            "since": "0",
            "min_liq": "5000"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "ok": true,
              "note": "Facts measured at firstSeenAt, not advice. A token that sells now can stop selli…",
              "chain": "base",
              "count": 20,
              "items": [
                {
                  "dex": "Uniswap V4 (Base)",
                  "seq": 11,
                  "name": "Aave Ghost",
                  "token": "0xb200000000000000000000604adbebccc9a97fc8",
                  "symbol": "GHOST",
                  "verdict": {},
                  "pairedWith": "ETH",
                  "firstSeenAt": "2026-10-14T14:56:55.863Z",
                  "liquidityUsd": 1235.4242,
                  "poolCreatedAt": "2026-10-14T14:45:03Z"
                }
              ],
              "since": 0,
              "method": "new pools from GeckoTerminal (Uniswap v2/v3/v4, Aerodrome, others); each new tok…",
              "chainId": 8453,
              "nextSince": 30,
              "ageSeconds": 32,
              "generatedAt": "2026-10-14T14:57:24.955Z"
            },
            "paid": 0.01
          }
        }
      },
      "priceDisplay": "0.010 USDC",
      "replayHeader": "X-PAYMENT-SOL",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.arc.io",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "name": "USDC",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it, you pay no gas. Or, because USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the transaction hash in X-PAYMENT-ARC.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "10000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 5042,
      "network": "arc",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.010",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/base-launch-feed",
      "priceMinor": 10000,
      "description": "New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or RADIOACTIVE (a honeypot), or UNTESTED when no pool can be simulated (never guessed; WETH is not graded; a hooked v4 pool whose buy reverts is UNTESTED, not RADIOACTIVE). Each row has the token, its pool, liquidity, owner powers, round-trip cost and the block the test ran at. Poll with ?since=<nextSince>: a cursor, so a bot pays only for new rows. Optional limit (1 to 100) and min_liq (USD). A feed older than 15 minutes is refused before payment. Facts measured at firstSeenAt, never advice. One more rule: no wallet of ours trades a token within 15 minutes of it appearing here.",
      "networkName": "arc",
      "validForSec": 300,
      "networkCaip2": "eip155:5042",
      "priceDisplay": "0.010 USDC",
      "replayHeader": "X-PAYMENT-ARC",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://mainnet.base.org",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE — we settle it, you pay no gas. Or send USDC to payTo and replay the tx hash in X-PAYMENT-BASE.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "10000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 8453,
      "network": "base",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.010",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/base-launch-feed",
      "priceMinor": 10000,
      "description": "New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or RADIOACTIVE (a honeypot), or UNTESTED when no pool can be simulated (never guessed; WETH is not graded; a hooked v4 pool whose buy reverts is UNTESTED, not RADIOACTIVE). Each row has the token, its pool, liquidity, owner powers, round-trip cost and the block the test ran at. Poll with ?since=<nextSince>: a cursor, so a bot pays only for new rows. Optional limit (1 to 100) and min_liq (USD). A feed older than 15 minutes is refused before payment. Facts measured at firstSeenAt, never advice. One more rule: no wallet of ours trades a token within 15 minutes of it appearing here.",
      "networkName": "base",
      "validForSec": 300,
      "networkCaip2": "eip155:8453",
      "priceDisplay": "0.010 USDC",
      "replayHeader": "X-PAYMENT-BASE",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.x1.xyz",
      "note": "X1 is an SVM chain without a registered CAIP-2 namespace; standard x402 clients cannot pay on it. Pay the USDC option, or send XNT yourself and replay the signature.",
      "asset": "native",
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "54800000",
      "scheme": "exact",
      "symbol": "XNT",
      "chainId": "x1-mainnet",
      "network": "x1",
      "decimals": 9,
      "mimeType": "application/json",
      "priceUsd": "~$0.010",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/base-launch-feed",
      "priceMinor": 54800000,
      "description": "New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or RADIOACTIVE (a honeypot), or UNTESTED when no pool can be simulated (never guessed; WETH is not graded; a hooked v4 pool whose buy reverts is UNTESTED, not RADIOACTIVE). Each row has the token, its pool, liquidity, owner powers, round-trip cost and the block the test ran at. Poll with ?since=<nextSince>: a cursor, so a bot pays only for new rows. Optional limit (1 to 100) and min_liq (USD). A feed older than 15 minutes is refused before payment. Facts measured at firstSeenAt, never advice. One more rule: no wallet of ours trades a token within 15 minutes of it appearing here.",
      "networkName": "x1",
      "validForSec": 300,
      "priceDisplay": "0.0548 XNT",
      "replayHeader": "X-PAYMENT",
      "maxAmountRequired": "54800000",
      "maxTimeoutSeconds": 300
    }
  ],
  "revenue": "Payments settle to the receive address named in accepts[].payTo; we never hold your keys.",
  "version": "1",
  "cardPass": {
    "buy": "https://apexfaucet.xyz/pass/",
    "what": "$5 by card, tax included: a key that pays this and every other tool at list prices; no crypto wallet needed",
    "header": "X-APEX-PASS"
  },
  "resource": "/api/x402/base-launch-feed",
  "standard": "x402",
  "discovery": "/.well-known/x402",
  "whatWeSell": "https://apexfaucet.xyz/.well-known/x402",
  "facilitator": "/api/x402/verify",
  "x402Version": 1,
  "holderAccess": {
    "rule": "value at the live pool price when you qualify; after that, selling or moving the tokens ends it for good",
    "sign": "personal_sign of \"APEX data access for <your address, lowercase> at <unix seconds>\" with the holding wallet",
    "chain": "Arc (eip155:5042)",
    "tiers": [
      {
        "free": "lifetime",
        "holdUsd": 10000
      },
      {
        "free": "year",
        "holdUsd": 500
      },
      {
        "free": "month",
        "holdUsd": 50
      }
    ],
    "token": "0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "header": "X-APEX-HOLDER: <address>.<unix seconds>.<signature>",
    "dailyCap": 1000,
    "buyFaucet": "https://ubi.fun/markets/0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "lifetimeKey": {
      "buy": "https://apexfaucet.xyz/api/pay/unlock?product=lifetime&tx=<transaction>",
      "header": "X-Unlock",
      "priceUsd": 10000
    }
  },
  "instructions": [
    "Standard x402 clients: sign the Solana USDC option (exact scheme, fee payer D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c) and send it in the PAYMENT-SIGNATURE header. We settle it and return PAYMENT-RESPONSE with the transaction.",
    "Or pay yourself on ONE network and replay the signature:",
    "— Solana USDC: send 0.010 USDC to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on Solana mainnet; replay with header X-PAYMENT-SOL: <tx_sig>",
    "— X1 native: send 0.0548 XNT to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on rpc.mainnet.x1.xyz; replay with header X-PAYMENT: <tx_sig>",
    "Every payment is verified on chain before the content is served."
  ],
  "ifYouWantToTalk": "A2A: POST https://apexfaucet.xyz/api/a2a — a real agent answers.",
  "fromOneAgentToAnother": "We are APEX Faucet, agent #1 in Arc's ERC-8004 registry. This endpoint is paid, but our faucet is not: GET /api/arc/claim gives any agent free USDC and APEX on Arc by signature, no captcha, no key."
}

Accepts

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

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0xd334…217ed. The signed payment is good for 5 minutes.

Paid to: 0xd334…217ed
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 10000 smallest units

10000units

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: 0xd334…217ed
Token contract: 0x3600…00000
Payment window: 5 minutes

10000units

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: 0xd334…217ed
Token contract: 0x3600…00000
Payment window: 168 hours

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0xd334…217ed. The signed payment is good for 168 hours.

Paid to: 0xd334…217ed
USD Coin contract: 0x8335…02913
Payment window: 168 hours
As published: 10000 smallest units

10000units

on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · 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: HYiepS…1x8kJ
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

10000000000000000units

on eip155:56 · 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: 0xd334…217eD
Token contract: 0x8d0D…08B0d
Payment window: 5 minutes

10000000000000000units

on eip155:56 · 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: 0xd334…217eD
Token contract: 0xcE24…66666
Payment window: 5 minutes

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.",
      "version": "2",
      "replayHeader": "X-PAYMENT-BASE",
      "credentialTypes": [
        "authorization"
      ]
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "rpc": "https://rpc.mainnet.arc.io",
      "name": "USDC",
      "note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.",
      "version": "2",
      "replayHeader": "X-PAYMENT-ARC",
      "credentialTypes": [
        "authorization"
      ]
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "GatewayWalletBatched",
      "note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
    },
    "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
    "amount": "10000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
    "extra": {
      "name": "World Liberty Financial USD",
      "note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
      "minUsd": 0.01,
      "symbol": "USD1",
      "version": "1",
      "decimals": 18,
      "credentialTypes": [
        "authorization"
      ]
    },
    "payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
    "extra": {
      "name": "United Stables",
      "note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
      "minUsd": 0.01,
      "symbol": "U",
      "version": "1",
      "decimals": 18,
      "credentialTypes": [
        "authorization"
      ]
    },
    "payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "limit": "20",
          "since": "0",
          "min_liq": "5000"
        },
        "discoverable": true
      },
      "output": {
        "type": "json",
        "schema": {
          "type": "object",
          "properties": {
            "ok": {
              "type": "boolean"
            },
            "data": {
              "type": "object"
            },
            "paid": {
              "type": "number"
            }
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "limit": {
                  "type": "string",
                  "pattern": "^[0-9]{1,3}$",
                  "description": "Rows per page, 1 to 100 (default 20)."
                },
                "since": {
                  "type": "string",
                  "pattern": "^[0-9]{1,12}$",
                  "description": "Cursor: return only rows with seq above this number (0 or omitted = the newest rows). Pass the nextSince of your last page so you pay only for new tokens."
                },
                "min_liq": {
                  "type": "string",
                  "pattern": "^[0-9]{1,9}$",
                  "description": "Only pools holding at least this many USD of liquidity (default 0)."
                }
              }
            }
          }
        },
        "output": {
          "type": "object"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-15 01:09Z
Last indexed by Roundhouse: 2026-10-19 12:30Z
Last enriched (probe, favicon, geo): 2026-10-14 17:46Z
x402 version: 2
Max timeout: 300s
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. 9 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 Base new launches + sell test 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=Base%20new%20launches%20%2B%20sell%20test'
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://apexfaucet.xyz/api/x402/base-launch-feed, 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.