# Fliprofit reseller fee calculator

> Exact US seller fees, payout and profit for eBay, Poshmark, Mercari, Etsy, Amazon and 7 more.

- name: com.fliprofit/fee-calculator
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.fliprofit%2Ffee-calculator
- tools: https://api.protogrid.dev/v1/servers/com.fliprofit%2Ffee-calculator/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "fee-calculator": {
      "type": "http",
      "url": "https://mcp.fliprofit.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 97
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-94% +updated-12d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,133 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 3 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 1,133 tokens to load them all
- tool set hash: 57039e28162624e525a18480351b0b77
- tools last changed: 2026-10-27T06:40:28.296Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.fliprofit/fee-calculator.svg)](https://protogrid.dev/servers/com.fliprofit/fee-calculator)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-27 `get_fee_changes` changed (inputSchema)
- 2026-10-27 `compare_platforms` changed (description)
  - before: Ranks all 12 supported US resale platforms by profit for the same sale (each platform's default options). Returns fees, payout, profit and margin per platform, with a link to each fliprofit.com calculator and the side-by-side compare tool.
  - after: Ranks all 13 supported US resale platforms by profit for the same sale (each platform's default options). Returns fees, payout, profit and margin per platform, with a link to each fliprofit.com calculator and the side-by-side compare tool.
- 2026-10-27 `calculate_fees` changed (description, inputSchema)
  - before: Exact US marketplace fees, payout and profit for one sale on one platform (eBay, Poshmark, Mercari, Whatnot, Depop, Etsy, Facebook Marketplace, Amazon, Grailed, Reverb, TCGplayer, TikTok Shop). Same numbers as the Fliprofit calculators. Returns a fee breakdown, payout, profit, margin, ROI, the official fee source and a link to the matching fliprofit.com calculator.
  - after: Exact US marketplace fees, payout and profit for one sale on one platform (eBay, Poshmark, Mercari, Whatnot, Depop, Etsy, Facebook Marketplace, Amazon, Grailed, Reverb, TCGplayer, TikTok Shop, Vinted). Same numbers as the Fliprofit calculators. Returns a fee breakdown, payout, profit, margin, ROI, the official fee source and a link to the matching fliprofit.com calculator.

Full history: https://api.protogrid.dev/v1/servers/com.fliprofit%2Ffee-calculator/changes

## Remotes

- https://mcp.fliprofit.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9361702)

## Packages

_none_

## Tools (3)

- `calculate_fees`: Exact US marketplace fees, payout and profit for one sale on one platform (eBay, Poshmark, Mercari, Whatnot, Depop, Etsy, Facebook Marketplace, Amazon, Grailed, Reverb, TCGplayer, TikTok Shop, Vinted). Same numbers as the Fliprofit calculators. Returns a fee breakdown, payout, profit, margin, ROI, the official fee source and a link to the matching fliprofit.com calculator.
- `compare_platforms`: Ranks all 13 supported US resale platforms by profit for the same sale (each platform's default options). Returns fees, payout, profit and margin per platform, with a link to each fliprofit.com calculator and the side-by-side compare tool.
- `get_fee_changes`: Machine-readable log of real, dated US marketplace fee changes (rate changes, new fees, caps, promotions, ending discounts), each with the platform's own source URL and the date Fliprofit last verified it. Filter by platform, by effective date, or to upcoming changes only.