Check LLC names, federal trademarks, domains and social handles with dated sources.
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Can I use this business name, and is anything stopping me? Check all four areas in one pass: LLC availability, federal trademark conflicts, domains, and social handles. Returns dated verdicts, sources, and the full results URL. Start here for a general business-name availability question. LLC results are preliminary, not reservations; trademark results are a conflict screen, not clearance.
The business, LLC, or trademark name from the conversation. An LLC designator is optional.
Up to 5 top-level domains from the conversation. Omit to check com.
Up to 5 jurisdictions for the LLC name check. Omit when no state was given.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http biznamechecker https://biznamechecker.com/mcp
Can I use this business name, and is anything stopping me? Check all four areas in one pass: LLC availability, federal trademark conflicts, domains, and social handles. Returns dated verdicts, sources, and the full results URL. Start here for a general business-name availability question. LLC results are preliminary, not reservations; trademark results are a conflict screen, not clearance.
| Argument | Type | Description |
|---|---|---|
| name* | string | The business, LLC, or trademark name from the conversation. An LLC designator is optional. |
| tlds | array | Up to 5 top-level domains from the conversation. Omit to check com. |
| states | array | Up to 5 jurisdictions for the LLC name check. Omit when no state was given. |
{
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 400,
"minLength": 1,
"description": "The business, LLC, or trademark name from the conversation. An LLC designator is optional."
},
"tlds": {
"type": "array",
"items": {
"enum": [
"com",
"net",
"org",
"co",
"io",
"us",
"biz"
],
"type": "string"
},
"maxItems": 5,
"description": "Up to 5 top-level domains from the conversation. Omit to check com."
},
"states": {
"type": "array",
"items": {
"enum": [
"AL",
"AK",
"AZ",
"AR",
"CA",
"CO",
"CT",
"DE",
"FL",
"GA",
"HI",
"ID",
"IL",
"IN",
"IA",
"KS",
"KY",
"LA",
"ME",
"MD",
"MA",
"MI",
"MN",
"MS",
"MO",
"MT",
"NE",
"NV",
"NH",
"NJ",
"NM",
"NY",
"NC",
"ND",
"OH",
"OK",
"OR",
"PA",
"RI",
"SC",
"SD",
"TN",
"TX",
"UT",
"VT",
"VA",
"WA",
"WV",
"WI",
"WY",
"DC"
],
"type": "string"
},
"maxItems": 5,
"description": "Up to 5 jurisdictions for the LLC name check. Omit when no state was given."
}
},
"additionalProperties": true
}Is this domain available or taken? Check a name across up to five TLDs using a registered-zone index, live DNS, and the registry's RDAP record. Each row names its status and source, and the answer includes the full results URL. Use check_business_name instead for a complete name check.
| Argument | Type | Description |
|---|---|---|
| name* | string | The business, LLC, or trademark name from the conversation. An LLC designator is optional. |
| tlds | array | Up to 5 top-level domains from the conversation. Omit to check com. |
{
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 400,
"minLength": 1,
"description": "The business, LLC, or trademark name from the conversation. An LLC designator is optional."
},
"tlds": {
"type": "array",
"items": {
"enum": [
"com",
"net",
"org",
"co",
"io",
"us",
"biz"
],
"type": "string"
},
"maxItems": 5,
"description": "Up to 5 top-level domains from the conversation. Omit to check com."
}
},
"additionalProperties": true
}Is this LLC name available, and can it be registered in these states? Returns a dated preliminary or live verdict for each state, the source registry portal, and the full results URL. This is not a name reservation; the state confirms at filing. Use check_business_name instead when the question is about anything else that could stop use of the name.
| Argument | Type | Description |
|---|---|---|
| name* | string | The business, LLC, or trademark name from the conversation. An LLC designator is optional. |
| states* | array | Up to 5 two-letter state or DC codes from the conversation. |
{
"type": "object",
"required": [
"name",
"states"
],
"properties": {
"name": {
"type": "string",
"maxLength": 400,
"minLength": 1,
"description": "The business, LLC, or trademark name from the conversation. An LLC designator is optional."
},
"states": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[A-Z]{2}$"
},
"maxItems": 5,
"description": "Up to 5 two-letter state or DC codes from the conversation."
}
},
"additionalProperties": true
}Are these social handles available or taken? Check the handle derived from a business name on 23 social platforms: github, bluesky, twitch, mastodon.social, instagram, youtube, pinterest, snapchat, telegram, tumblr, vimeo, substack, devto, threads, reddit, linkedin, medium, x, facebook, tiktok, dribbble, linktree, patreon. Each row gives a status or says a manual check is needed, and the answer includes the full results URL. Use check_business_name instead for a complete name check.
| Argument | Type | Description |
|---|---|---|
| name* | string | The business, LLC, or trademark name from the conversation. An LLC designator is optional. |
{
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 400,
"minLength": 1,
"description": "The business, LLC, or trademark name from the conversation. An LLC designator is optional."
}
},
"additionalProperties": true
}Could this business name conflict with a federal trademark? Returns matching marks, status, classes, owner, record links, the register date, and the full results URL. Optional filters can narrow or rank the search. This is a conflict screen, not legal advice and not trademark clearance. Use check_business_name instead for a complete name check.
| Argument | Type | Description |
|---|---|---|
| mode | string | Optional; leave unset for a conflict check. A set value narrows the match mode. |
| name* | string | The business, LLC, or trademark name from the conversation. An LLC designator is optional. |
| owner | string | Optional owner filter; leave unset for a conflict check. |
| status | string | Optional status scope; leave unset for a conflict check of live and pending marks. |
| industry | string | Optional industry phrase; leave unset for a conflict check. |
| include_dead | boolean | Optional; include dead marks separately when true. |
| nice_classes | array | Optional Nice classes for the goods or services; leave unset for a conflict check. |
What are this state's LLC naming rules? Returns the required designator, restricted-word note, recorded statute citation, state registry search portal, and results site URL. No name availability check is performed.
| Argument | Type | Description |
|---|---|---|
| state* | string | Two-letter USPS code, or DC. |
{
"type": "object",
"required": [
"state"
],
"properties": {
"state": {
"type": "string",
"pattern": "^[A-Z]{2}$",
"description": "Two-letter USPS code, or DC."
}
},
"additionalProperties": true
}What does this federal trademark serial number identify? Returns the mark, status, owner, dates, classes, goods and services, first use, publication, pseudo mark, register date, and the TSDR record link.
| Argument | Type | Description |
|---|---|---|
| serial* | string | USPTO serial number, 7 to 9 digits. |
{
"type": "object",
"required": [
"serial"
],
"properties": {
"serial": {
"type": "string",
"pattern": "^[0-9]{7,9}$",
"description": "USPTO serial number, 7 to 9 digits."
}
},
"additionalProperties": true
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 9, 2026.
| goods_description |
| string |
| Optional goods or services; leave unset for a conflict check. |
{
"type": "object",
"required": [
"name"
],
"properties": {
"mode": {
"enum": [
"exact",
"prefix",
"fuzzy",
"phonetic"
],
"type": "string",
"description": "Optional; leave unset for a conflict check. A set value narrows the match mode."
},
"name": {
"type": "string",
"maxLength": 400,
"minLength": 1,
"description": "The business, LLC, or trademark name from the conversation. An LLC designator is optional."
},
"owner": {
"type": "string",
"maxLength": 120,
"description": "Optional owner filter; leave unset for a conflict check."
},
"status": {
"enum": [
"live",
"pending",
"dead",
"all"
],
"type": "string",
"description": "Optional status scope; leave unset for a conflict check of live and pending marks."
},
"industry": {
"type": "string",
"maxLength": 60,
"description": "Optional industry phrase; leave unset for a conflict check."
},
"include_dead": {
"type": "boolean",
"description": "Optional; include dead marks separately when true."
},
"nice_classes": {
"type": "array",
"items": {
"type": "integer",
"maximum": 45,
"minimum": 1
},
"maxItems": 10,
"description": "Optional Nice classes for the goods or services; leave unset for a conflict check."
},
"goods_description": {
"type": "string",
"maxLength": 500,
"description": "Optional goods or services; leave unset for a conflict check."
}
},
"additionalProperties": true
}