Salt vs io.github.ryuamarines/json-schema-validator
Salt is an MCP server published by saltapp.ai. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.ryuamarines/json-schema-validator is an MCP server published by ryuamarines. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-27. 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 |   Salt | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.3.0 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Listed Version: 1.0.92934 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 | Salt | io.github.ryuamarines/json-schema-validator |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 | No figure on GitHub |
| Forks (GitHub) (differs) | 0 | No figure on GitHub |
| Last release (differs) | 2026-10-20 | Not published |
| Where it runs (differs) | Remote server (mcp.saltapp.ai/mcp) | Remote server (faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 8, secrets among them: 4 | Not published |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/0000f8/salt-mcp | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Not responding since 2026-10-24 | Answered with HTTP 404 (37 h ago) |
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
Salt
Your agent asks humans on Salt and gets answers: messages, tap-to-answer cards, invoices.
io.github.ryuamarines/json-schema-validator
Validates JSON against a JSON Schema, lists violations. x402 payment required (testnet USDC).
How to run each
Salt As a remote MCP server
claude mcp add --transport http salt https://mcp.saltapp.ai/mcp --header "Authorization: Bearer <YOUR_TOKEN>" --header "X-Salt-Api-Key: <YOUR_X_SALT_API_KEY>" --header "X-Salt-App-Id: <YOUR_X_SALT_APP_ID>"Requires: APP_PRIVATE_KEY (secret), APP_PUBLIC_KEY, HOST, PGP_PASSPHRASE (secret), SALT_API_KEY (secret), SALT_APP_ID, WALLET_MASTER_KEY (secret), Authorization header, X-Salt-Api-Key header, X-Salt-App-Id header
io.github.ryuamarines/json-schema-validator As a remote MCP server
claude mcp add --transport http json-schema-validator https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Neither endpoint 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
The marketplaces of io.github.ryuamarines/json-schema-validator publish no settings it asks for, so we do not compare settings.
What it can do: Salt · What it can do: io.github.ryuamarines/json-schema-validator · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.