ReplyLayer vs Postman MCP Server
ReplyLayer is an MCP server published by replylayer.ai. Marketplaces we read that list it: 1 (Official MCP Registry). Postman MCP Server is an MCP server published by postman.com. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-17. 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 |  ReplyLayer |   Postman MCP Server |
|---|---|---|
| Official MCP Registry | Listed Version: 0.15.1 Downloads/month (npm): 1 934 Downloads/week (npm): 97 Not marked · First seen |
Listed Version: 2.14.0 Downloads/month (npm): 31 313 Downloads/week (npm): 4 401 Forks (GitHub): 87 Stars (GitHub): 322 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:73f715030cbe Forks (GitHub): 87 Pulls (Docker Hub): 45 331 Stars (Docker Hub): 6 Stars (GitHub): 322 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 | ReplyLayer | Postman MCP Server |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | No figure on GitHub | 322 |
| Pulls (Docker Hub) (differs) | No figure on Docker Hub | 45 331 |
| Forks (GitHub) (differs) | No figure on GitHub | 87 |
| Last release (differs) | Not published | 2026-10-16 |
| Where it runs (differs) | Remote server (api.replylayer.ai/v1/mcp) | Remote server or your machine |
| Transport (differs) | Streamable HTTP | Streamable HTTP, stdio |
| Tools it declares (differs) | Not published | 42 |
| Environment variables it asks for | 1, secrets among them: 1 | 1, secrets among them: 1 |
| Licence (differs) | Not stated | Apache-2.0 |
| Repository (differs) | Not stated | github.com/postmanlabs/postman-mcp-server |
| Changes in the last 7 days (differs) | 0 | 1 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 3 days ago, requires a key | Responded 20 h ago, requires a key |
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
ReplyLayer
Safe email for AI agents: a mailbox with inbound scanning, outbound checks and human review.
Postman MCP Server
Give your AI agents trusted access to the full Postman platform.
How to run each
ReplyLayer As a remote MCP server
claude mcp add --transport http replylayer https://api.replylayer.ai/v1/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: REPLYLAYER_API_KEY (secret), Authorization header
Postman MCP Server As a remote MCP server
claude mcp add --transport http postman-mcp-server https://mcp.postman.com/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: POSTMAN_API_KEY (secret), 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
The marketplaces of ReplyLayer publish no list of tools, so we do not compare tools.
Settings each asks for
Only ReplyLayer asks for
REPLYLAYER_API_KEY (secret)
Only Postman MCP Server asks for
POSTMAN_API_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: ReplyLayer · What it can do: Postman MCP Server · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.