Comparison

Resend vs Postman MCP Server

Resend is an MCP server published by resend. Marketplaces we read that list it: 1 (Docker MCP Catalog). 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

Where each is published
Marketplace	Resend	Postman MCP Server
Docker MCP Catalog	Listed Version: sha256:2a786579214e Forks (GitHub): 90 Pulls (Docker Hub): 21 869 Stars (Docker Hub): 5 Stars (GitHub): 576 Not marked · First seen 2026-10-11	Listed Version: sha256:73f715030cbe Forks (GitHub): 87 Pulls (Docker Hub): 45 316 Stars (Docker Hub): 6 Stars (GitHub): 321 Not marked · First seen 2026-10-11
Official MCP Registry	Not listed	Listed Version: 2.14.0 Downloads/month (npm): 31 219 Downloads/week (npm): 4 519 Forks (GitHub): 87 Stars (GitHub): 321 Not marked · First seen 2026-10-11

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

Resend vs Postman MCP Server
Fact	Resend	Postman MCP Server
Marketplaces that list it (differs)	1 (worse)	2 (better)
Stars (GitHub) (differs)	576 (better)	321 (worse)
Pulls (Docker Hub) (differs)	21 869 (worse)	45 316 (better)
Forks (GitHub) (differs)	90 (better)	87 (worse)
Last release (differs)	Not published	2026-10-16
Where it runs (differs)	On your machine (mcp/resend)	Remote server or your machine
Transport (differs)	stdio	Streamable HTTP, stdio
Tools it declares (differs)	1	42
Environment variables it asks for (differs)	3, secrets among them: 1	1, secrets among them: 1
Licence (differs)	MIT	Apache-2.0
Repository (differs)	github.com/resend/mcp-send-email	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)	no remote endpoint we check	Responded 17 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

Resend

In its own words, on Docker MCP Catalog:

The official MCP server to send emails and interact with Resend.

Postman MCP Server

In its own words, on Official MCP Registry:

Give your AI agents trusted access to the full Postman platform.

How to run each

Resend As a local MCP server: Docker image

Claude Code

claude mcp add --env "RESEND_API_KEY=<YOUR_RESEND_API_KEY>" --transport stdio resend -- docker run -i --rm -e RESEND_API_KEY mcp/resend

Requires: RESEND_API_KEY (secret)

Postman MCP Server As a remote MCP server

Claude Code

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.

Only Postman MCP Server has a remote endpoint we check. How we check endpoints

Tools each declares

Only Resend declares

send-email

Only Postman MCP Server declares

createCollection
createCollectionRequest
createCollectionResponse
createEnvironment
createMock
createSpec
createSpecFile
createWorkspace
duplicateCollection
generateCollection
generateSpecFromCollection
getAllSpecs

Show the remaining 30

getAuthenticatedUser
getCollection
getCollections
getDuplicateCollectionTaskStatus
getEnabledTools
getEnvironment
getEnvironments
getGeneratedCollectionSpecs
getMock
getMocks
getSpec
getSpecCollections
getSpecDefinition
getSpecFile
getSpecFiles
getTaggedEntities
getWorkspace
getWorkspaces
publishMock
putCollection
putEnvironment
runCollection
searchPostmanElements
syncCollectionWithSpec
syncSpecWithCollection
updateCollectionRequest
updateMock
updateSpecFile
updateSpecProperties
updateWorkspace

Both declare

None

Tool names as each marketplace publishes them. More tools is not better in itself: compare what each needs for the job.

Settings each asks for

Only Resend asks for

REPLY_TO_EMAIL_ADDRESSES
RESEND_API_KEY (secret)
SENDER_EMAIL_ADDRESS

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: Resend · What it can do: Postman MCP Server · Compare two other plugins

Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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 2026-10-17. We publish no contact details for plugin publishers.