PayperAnswer vs TopxAI Models
PayperAnswer is an MCP server published by payperwork.app. Marketplaces we read that list it: 1 (Official MCP Registry). TopxAI Models is an MCP server published by ai.topxea.com. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-07. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  TopxAI Models | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.4.1 No figure published Not marked · First seen |
Listed Version: 1.0.0 No figure published Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | PayperAnswer | TopxAI Models |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Last release (differs) | 2026-11-01 | Not published |
| Where it runs (differs) | Remote server (payperwork.app/ai/mcp) | Remote server (ai.topxea.com/mcp/models) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence | Not stated | Not stated |
| Repository | Not stated | Not stated |
| Changes in the last 7 days (differs) | 5 | 0 |
| First seen (differs) | 2026-11-01 | 2026-10-11 |
| Endpoint at the last check (differs) | Status out of date: last check 32 h ago returned HTTP 405 | Status out of date: last check 38 h ago returned HTTP 401 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
PayperAnswer
Pay-per-call chat on GPT-6.1, Claude, Gemini and Grok over x402. No API key; a failed call is free.
TopxAI Models
Ask Claude, GPT, Grok, GLM, Kimi or DeepSeek from your client; token price plus a $0.001 call fee.
How to run each
PayperAnswer As a remote MCP server
claude mcp add --transport http ai https://payperwork.app/ai/mcpTopxAI Models As a remote MCP server
claude mcp add --transport http models https://ai.topxea.com/mcp/models --header "Authorization: Bearer <YOUR_API_KEY>"Requires: Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Both endpoints responded at the last daily check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: PayperAnswer · What it can do: TopxAI Models · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.