Index onlineMerchant portal
Api Endpoint

LegalPulse

Trademark precheck (agent-tier preview of /api/legal/trademark-check $0.50): live USPTO TSDR verification of serial/registration numbers you already have — returns the official LIVE/DEAD status, owner, classes, and dates verbatim. Does not run candidate-discovery research or produce a conflict-risk verdict; those require the full product. For legal, brand-naming, and IP agents with small per-call budgets.

Open interactive test console

Offering

Provider
legalpulse.theaslangroupllc.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Legal And Compliance
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://legalpulse.theaslangroupllc.com/api/legal/trademark-precheck
MIME type
application/json
First seen
2026-10-16T07:21:28.222Z
Last seen
Tags
trademark-precheck, uspto, tsdr-lookup, preview, brand-naming

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.25 USDC
Atomic price: 250000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.25 USDC
Atomic price: 250000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 3
0.25 USDC
Atomic price: 250000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 4
0.25 USDC
Atomic price: 250000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 5
0.25 USDC
Atomic price: 250000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 6
0.25 USDC
Atomic price: 250000 · Network: eip155:480 · Asset: USDC · Scheme: exact
Payment option 7
0.25 USDC
Atomic price: 250000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Payment option 8
250000 atomic units
Atomic price: 250000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: exact
Payment option 9
250000 atomic units
Atomic price: 250000 · Network: eip155:999 · Asset: 0xb88339CB7199b77E23DB6E890353E22632Ba630f · Scheme: exact
Payment option 10
250000 atomic units
Atomic price: 250000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · Asset: 31566704 · Scheme: exact
Payment option 11
250000 atomic units
Atomic price: 250000 · Network: xrpl:0 · Asset: XRP · Scheme: exact
Payment option 12
250000000000000000 atomic units
Atomic price: 250000000000000000 · Network: eip155:56 · Asset: 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "250000",
    "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:480",
    "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:143",
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:999",
    "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
    "amount": "250000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
    "asset": "31566704",
    "amount": "250000",
    "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I"
  },
  {
    "scheme": "exact",
    "network": "xrpl:0",
    "asset": "XRP",
    "amount": "250000",
    "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32"
  },
  {
    "scheme": "exact",
    "network": "eip155:56",
    "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
    "amount": "250000000000000000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  }
]

Observed health

Status
Healthy
Latest latency
59 ms
Average latency
341 ms
HTTP status
402
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "mark": {
          "type": "string",
          "description": "the brand/product name to check (used for input validation and context only — this route does not search for conflicts)"
        },
        "serial": {
          "type": "string",
          "description": "CSV of known USPTO serial/registration numbers to verify live — REQUIRED to get official records back"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "mark": {
              "description": "the brand/product name to check (used for input validation and context only — this route does not search for conflicts)",
              "type": "string"
            },
            "serial": {
              "description": "CSV of known USPTO serial/registration numbers to verify live — REQUIRED to get official records back",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "errors": {
          "additionalProperties": {
            "properties": {
              "description": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            },
            "required": [
              "description"
            ],
            "type": "object"
          },
          "description": "Documented error responses, keyed by HTTP status code",
          "type": "object"
        },
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}