Look up username availability on 12 resale platforms (links where blocked); compare seller fees.
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Check if ONE username is free on 12 resale platforms. Example: username='vintage_finds' returns available, taken, or unverified per platform.
Username, no @ or spaces.
Platform ids. Omit for all.
Check if ONE username is free on 12 resale platforms. Example: username='vintage_finds' returns available, taken, or unverified per platform.
| Argument | Type | Description |
|---|
| username* | string | Username, no @ or spaces. |
| platforms | array | Platform ids. Omit for all. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"username"
],
"properties": {
"username": {
"type": "string",
"pattern": "^[a-zA-Z0-9-_]{3,50}$",
"description": "Username, no @ or spaces."
},
"platforms": {
"type": "array",
"items": {
"enum": [
"ebay",
"ebaystore",
"poshmark",
"grailed",
"vinted",
"whatnot",
"bonanza",
"chairish",
"depop",
"etsy",
"mercari",
"rubylane"
],
"type": "string"
},
"maxItems": 12,
"minItems": 1,
"description": "Platform ids. Omit for all."
}
}
}Compare what a US sale keeps after fees on 7 platforms. Example: price=45, item_cost=12 ranks platforms by profit.
| Argument | Type | Description |
|---|---|---|
| price* | number | Sale price, USD. |
| item_cost | number | Item cost, USD. |
| shipping_cost | number | Your postage cost, USD. |
| shipping_charged | number | Shipping buyer pays, USD. |
| ebay_promoted_rate_percent | number | eBay promoted rate, percent. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price"
],
"properties": {
"price": {
"type": "number",
"maximum": 100000,
"description": "Sale price, USD.",
"exclusiveMinimum": 0
},
"item_cost": {
"type": "number",
"maximum": 100000,
"minimum": 0,
"description": "Item cost, USD."
},
"shipping_cost": {
"type": "number",
"maximum": 100000,
"minimum": 0,
"description": "Your postage cost, USD."
},
"shipping_charged": {
"type": "number",
"maximum": 100000,
"minimum": 0,
"description": "Shipping buyer pays, USD."
},
"ebay_promoted_rate_percent": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "eBay promoted rate, percent."
}
}
}