Roundhouse

api.sys84.org

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb
https://api.sys84.org/scan/tokens
Calls · 30d
3↑ 60%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$1.07
Verified settled volume
21 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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
0x64e4e6c18849ba687A468dcad0A582AC6f8089E4

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.

{
  "docs": "https://api.sys84.org/quickstart",
  "tags": [
    "sys84",
    "x402",
    "agent",
    "risk",
    "wallet",
    "security",
    "defi",
    "base"
  ],
  "type": "http",
  "asset": "USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)",
  "error": "Payment required. See 'quickstart' for how to pay.",
  "legacy": {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://api.sys84.org/scan/tokens",
        "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
        "outputSchema": {
          "input": {
            "type": "object",
            "properties": {
              "chain": {
                "type": "string",
                "description": "string optional, default base"
              },
              "limit": {
                "type": "number",
                "description": "number optional, default 10, maximum 50"
              },
              "min_liquidity": {
                "type": "number",
                "description": "number optional minimum liquidity in USD"
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "chain": {
                "type": "string",
                "description": "string"
              },
              "count": {
                "type": "number",
                "description": "number"
              },
              "tokens": {
                "type": "array",
                "description": "array of ranked token market snapshots"
              },
              "quality": {
                "type": "object",
                "description": "object freshness and interpretation notes"
              },
              "data_sources": {
                "type": "array",
                "description": "array of source names"
              },
              "generated_at": {
                "type": "string",
                "description": "string ISO-8601 timestamp"
              },
              "next_actions": {
                "type": "array",
                "description": "array of paid follow-up service URLs"
              }
            }
          }
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "extra": {
          "name": "Global Dollar",
          "version": "1"
        },
        "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
        "scheme": "exact",
        "network": "robinhood",
        "mimeType": "application/json",
        "resource": "https://api.sys84.org/scan/tokens",
        "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
        "facilitator": {
          "url": "https://facilitator.naven.network",
          "settleUrl": "https://facilitator.naven.network/settle",
          "verifyUrl": "https://facilitator.naven.network/verify",
          "supportedUrl": "https://facilitator.naven.network/supported"
        },
        "outputSchema": {
          "input": {
            "type": "object",
            "properties": {
              "chain": {
                "type": "string",
                "description": "string optional, default base"
              },
              "limit": {
                "type": "number",
                "description": "number optional, default 10, maximum 50"
              },
              "min_liquidity": {
                "type": "number",
                "description": "number optional minimum liquidity in USD"
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "chain": {
                "type": "string",
                "description": "string"
              },
              "count": {
                "type": "number",
                "description": "number"
              },
              "tokens": {
                "type": "array",
                "description": "array of ranked token market snapshots"
              },
              "quality": {
                "type": "object",
                "description": "object freshness and interpretation notes"
              },
              "data_sources": {
                "type": "array",
                "description": "array of source names"
              },
              "generated_at": {
                "type": "string",
                "description": "string ISO-8601 timestamp"
              },
              "next_actions": {
                "type": "array",
                "description": "array of paid follow-up service URLs"
              }
            }
          }
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 300
      }
    ],
    "x402Version": 1
  },
  "pay_to": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.sys84.org/scan/tokens",
      "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:4663",
      "mimeType": "application/json",
      "resource": "https://api.sys84.org/scan/tokens",
      "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
      "facilitator": {
        "url": "https://facilitator.naven.network",
        "settleUrl": "https://facilitator.naven.network/settle",
        "verifyUrl": "https://facilitator.naven.network/verify",
        "supportedUrl": "https://facilitator.naven.network/supported"
      },
      "maxTimeoutSeconds": 300
    }
  ],
  "network": "base (chain 8453)",
  "category": "agent-risk",
  "resource": {
    "url": "https://api.sys84.org/scan/tokens",
    "type": "http"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "name": "SYS84 Scan Tokens",
        "tags": [
          "sys84",
          "x402",
          "agent",
          "risk",
          "wallet",
          "security",
          "defi",
          "base"
        ],
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": "base",
            "limit": 1,
            "min_liquidity": 1
          }
        },
        "method": "GET",
        "output": {
          "type": "json",
          "example": {
            "chain": "string",
            "count": 1,
            "tokens": [],
            "quality": {},
            "data_sources": [],
            "generated_at": "string",
            "next_actions": []
          }
        },
        "category": "agent-risk",
        "provider": "SYS84",
        "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
        "serviceName": "SYS84 Scan Tokens",
        "routeTemplate": "https://api.sys84.org/scan/tokens"
      },
      "name": "SYS84 Scan Tokens",
      "tags": [
        "sys84",
        "x402",
        "agent",
        "risk",
        "wallet",
        "security",
        "defi",
        "base"
      ],
      "method": "GET",
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "chain": {
                    "type": "string",
                    "description": "string optional, default base"
                  },
                  "limit": {
                    "type": "number",
                    "description": "number optional, default 10, maximum 50"
                  },
                  "min_liquidity": {
                    "type": "number",
                    "description": "number optional minimum liquidity in USD"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "POST",
                  "PUT",
                  "PATCH",
                  "DELETE",
                  "HEAD"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "chain": {
                    "type": "string",
                    "description": "string optional, default base"
                  },
                  "limit": {
                    "type": "number",
                    "description": "number optional, default 10, maximum 50"
                  },
                  "min_liquidity": {
                    "type": "number",
                    "description": "number optional minimum liquidity in USD"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "chain": {
                    "type": "string",
                    "description": "string"
                  },
                  "count": {
                    "type": "number",
                    "description": "number"
                  },
                  "tokens": {
                    "type": "array",
                    "description": "array of ranked token market snapshots"
                  },
                  "quality": {
                    "type": "object",
                    "description": "object freshness and interpretation notes"
                  },
                  "data_sources": {
                    "type": "array",
                    "description": "array of source names"
                  },
                  "generated_at": {
                    "type": "string",
                    "description": "string ISO-8601 timestamp"
                  },
                  "next_actions": {
                    "type": "array",
                    "description": "array of paid follow-up service URLs"
                  }
                }
              }
            }
          }
        }
      },
      "category": "agent-risk",
      "provider": "SYS84",
      "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
      "serviceName": "SYS84 Scan Tokens",
      "routeTemplate": "https://api.sys84.org/scan/tokens"
    }
  },
  "quickstart": {
    "docs": "https://api.sys84.org/quickstart",
    "step_1": "Get USDC on Base mainnet (chain 8453) — use Coinbase, Uniswap, or bridge from any chain.",
    "step_2": "Use the x402 client library OR AgentCash to sign and send the payment header automatically.",
    "x402_spec": "https://x402.org",
    "step_3_npm": "Official x402 SDK: npm install @x402/axios @x402/evm viem axios; register ExactEvmScheme, wrap axios with wrapAxiosWithPayment, then retry automatically.",
    "step_3_axios": "Plain axios does not pay automatically. On HTTP 402, read accepts[0], sign an EIP-3009 TransferWithAuthorization, then retry the same request with X-Payment: <base64 payload>. Download helper: https://api.sys84.org/x402/client/axios.js",
    "step_3_manual": "Manual: sign an EIP-3009 transferWithAuthorization for $0.0200 USDC to 0x64e4e6c18849ba687A468dcad0A582AC6f8089E4 on Base, base64-encode the JSON auth object, set as X-Payment header, retry the request.",
    "agentcash_docs": "https://agentcash.dev",
    "curl_example_v1": "curl -X GET https://api.sys84.org/scan/tokens -H 'X-Payment: <base64(x402 v1 EIP-3009 auth JSON)>'",
    "curl_example_v2": "curl -X GET https://api.sys84.org/scan/tokens -H 'PAYMENT-SIGNATURE: <base64(x402 v2 payment payload)>'",
    "step_3_awal_pay": "npx awal@2.0.3 x402 pay https://api.sys84.org/scan/tokens -X GET --max-amount 20000 --json",
    "step_3_agentcash": "AgentCash (recommended for AI agents): install via npx agentcash, fund wallet, then call this endpoint — payment is handled automatically.",
    "step_3_awal_details": "npx awal@2.0.3 x402 details https://api.sys84.org/scan/tokens --json"
  },
  "amount_usdc": 0.02,
  "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "chain": {
        "type": "string",
        "description": "string optional, default base"
      },
      "limit": {
        "type": "number",
        "description": "number optional, default 10, maximum 50"
      },
      "min_liquidity": {
        "type": "number",
        "description": "number optional minimum liquidity in USD"
      }
    }
  },
  "serviceName": "SYS84 Scan Tokens",
  "x402Version": 2,
  "facilitators": {
    "base": {
      "url": "https://api.cdp.coinbase.com/platform/v2/x402",
      "settle": "https://api.cdp.coinbase.com/platform/v2/x402/settle",
      "verify": "https://api.cdp.coinbase.com/platform/v2/x402/verify",
      "supported": "https://api.cdp.coinbase.com/platform/v2/x402/supported"
    },
    "robinhood": {
      "url": "https://facilitator.naven.network",
      "health": "https://facilitator.naven.network/health",
      "settle": "https://facilitator.naven.network/settle",
      "verify": "https://facilitator.naven.network/verify",
      "supported": "https://facilitator.naven.network/supported"
    }
  },
  "legacy_accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.sys84.org/scan/tokens",
      "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
      "outputSchema": {
        "input": {
          "type": "object",
          "properties": {
            "chain": {
              "type": "string",
              "description": "string optional, default base"
            },
            "limit": {
              "type": "number",
              "description": "number optional, default 10, maximum 50"
            },
            "min_liquidity": {
              "type": "number",
              "description": "number optional minimum liquidity in USD"
            }
          }
        },
        "output": {
          "type": "object",
          "properties": {
            "chain": {
              "type": "string",
              "description": "string"
            },
            "count": {
              "type": "number",
              "description": "number"
            },
            "tokens": {
              "type": "array",
              "description": "array of ranked token market snapshots"
            },
            "quality": {
              "type": "object",
              "description": "object freshness and interpretation notes"
            },
            "data_sources": {
              "type": "array",
              "description": "array of source names"
            },
            "generated_at": {
              "type": "string",
              "description": "string ISO-8601 timestamp"
            },
            "next_actions": {
              "type": "array",
              "description": "array of paid follow-up service URLs"
            }
          }
        }
      },
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
      "extra": {
        "name": "Global Dollar",
        "version": "1"
      },
      "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
      "scheme": "exact",
      "network": "robinhood",
      "mimeType": "application/json",
      "resource": "https://api.sys84.org/scan/tokens",
      "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
      "facilitator": {
        "url": "https://facilitator.naven.network",
        "settleUrl": "https://facilitator.naven.network/settle",
        "verifyUrl": "https://facilitator.naven.network/verify",
        "supportedUrl": "https://facilitator.naven.network/supported"
      },
      "outputSchema": {
        "input": {
          "type": "object",
          "properties": {
            "chain": {
              "type": "string",
              "description": "string optional, default base"
            },
            "limit": {
              "type": "number",
              "description": "number optional, default 10, maximum 50"
            },
            "min_liquidity": {
              "type": "number",
              "description": "number optional minimum liquidity in USD"
            }
          }
        },
        "output": {
          "type": "object",
          "properties": {
            "chain": {
              "type": "string",
              "description": "string"
            },
            "count": {
              "type": "number",
              "description": "number"
            },
            "tokens": {
              "type": "array",
              "description": "array of ranked token market snapshots"
            },
            "quality": {
              "type": "object",
              "description": "object freshness and interpretation notes"
            },
            "data_sources": {
              "type": "array",
              "description": "array of source names"
            },
            "generated_at": {
              "type": "string",
              "description": "string ISO-8601 timestamp"
            },
            "next_actions": {
              "type": "array",
              "description": "array of paid follow-up service URLs"
            }
          }
        }
      },
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "payment_context": {
    "api_access": {
      "note": "This payment unlocks the SYS84 API call.",
      "pay_to": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
      "purpose": "payment_to_call_sys84_api",
      "protocol": "x402",
      "settlement_asset": "USDC",
      "settlement_chain": "base",
      "settlement_chain_id": 8453,
      "settlement_asset_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    }
  },
  "client_integration": {
    "axios": {
      "header": "X-Payment: <base64 x402 v1 EIP-3009 payload>",
      "install": "npm install axios ethers",
      "problem": "Plain axios clients will receive 402 and must retry with a payment header.",
      "helper_url": "https://api.sys84.org/x402/client/axios.js",
      "repo_helper": "sys84-agent/x402AxiosClient.js",
      "required_flow": [
        "Call endpoint without payment and read accepts[0]",
        "Sign EIP-3009 TransferWithAuthorization for the advertised amount/payTo/asset",
        "Base64 encode the x402 payment payload",
        "Retry the same request with X-Payment header"
      ]
    },
    "official_x402_axios": {
      "docs": "https://docs.x402.org/getting-started/quickstart-for-buyers",
      "header": "PAYMENT-SIGNATURE: <base64 x402 v2 payment payload>",
      "install": "npm install @x402/axios @x402/evm viem axios",
      "settlement_response_headers": [
        "PAYMENT-RESPONSE",
        "X-PAYMENT-RESPONSE"
      ]
    }
  }
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x64e4…089E4. The signed payment is good for 5 minutes.

Paid to
0x64e4…089E4
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
Buys
Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.
Returns
application/json
20000units
on eip155:4663 · 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
0x64e4…089E4
Token contract
0x5fc5…1d168
Payment window
5 minutes
Buys
Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.sys84.org/scan/tokens",
    "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
    "extra": {
      "name": "Global Dollar",
      "version": "1"
    },
    "payTo": "0x64e4e6c18849ba687A468dcad0A582AC6f8089E4",
    "scheme": "exact",
    "network": "eip155:4663",
    "mimeType": "application/json",
    "resource": "https://api.sys84.org/scan/tokens",
    "description": "Discover active Base tokens ranked by momentum, liquidity, and volume. Returns machine-readable market metrics plus report freshness and follow-up risk-check links.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-10-16 17:18Z
Last indexed by Roundhouse
2026-10-24 11:46Z
Last enriched (probe, favicon, geo)
2026-10-15 12:45Z
x402 version
1
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. 20 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.sys84.org 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.sys84.org'
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.sys84.org/scan/tokens, 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.