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Check Domain Availability
Check Domain Availability
Checks whether a custom *.neynar.app subdomain is available for assignment. Validates format, checks reserved names, and verifies no other active deployment is using it. Note: Studio CU is tracked based on LLM token usage, not per API call.
studio
Check Domain Availability is an example object payload from Neynar, with 9 top-level fields. It illustrates the shape of data this provider's APIs accept or return.
Top-level fields
operationId method path summary description tags parameters requestBody responses
Example Payload
{
"operationId": "check-domain-availability",
"method": "GET",
"path": "/v2/studio/vercel/domain/check",
"summary": "Check if a custom subdomain is available",
"description": "Checks whether a custom *.neynar.app subdomain is available for assignment. Validates format, checks reserved names, and verifies no other active deployment is using it. Note: Studio CU is tracked based on LLM token usage, not per API call.",
"tags": [
"studio"
],
"parameters": [
{
"name": "fid",
"in": "query",
"required": true,
"description": "Farcaster ID of the requesting user",
"schema": {
"example": 3,
"format": "int32",
"minimum": 0,
"type": "integer"
}
},
{
"name": "subdomain",
"in": "query",
"required": true,
"description": "The desired subdomain (without .neynar.app suffix). Must be 3-63 characters, lowercase alphanumeric and hyphens only.",
"schema": {
"maxLength": 63,
"minLength": 3,
"pattern": "^[a-z0-9]([a-z0-9-]*[a-z0-9])?$",
"type": "string"
}
}
],
"requestBody": null,
"responses": {
"200": {
"description": "Success",
"schema": {
"properties": {
"available": {
"description": "Whether the subdomain is available",
"type": "boolean"
},
"domain": {
"description": "The full domain (e.g., myapp.neynar.app)",
"type": "string"
},
"reason": {
"description": "Reason why the subdomain is unavailable (e.g., \"reserved\", \"taken\")",
"type": "string"
}
},
"required": [
"available",
"domain"
],
"type": "object"
},
"example": null
},
"400": {
"description": "Bad Request",
"schema": {
"properties": {
"error": {
"type": "string"
},
"success": {
"enum": [
false
],
"type": "boolean"
}
},
"required": [
"success",
"error"
],
"type": "object"
},
"example": null
},
"500": {
"description": "Server Error",
"schema": {
"properties": {
"error": {
"type": "string"
},
"success": {
"enum": [
false
],
"type": "boolean"
}
},
"required": [
"success",
"error"
],
"type": "object"
},
"example": null
}
}
}