SendGrid Transactional MCP Server
by neschadinio.github.Neschadin/sendgrid-mcpv3.0.3
SendGrid transactional email: preflight send, templates, and delivery diagnostics.
context tax
pending
security
97/100
cold start
pending
freshness
Active6d ago
Our reading of SendGrid Transactional, from the data
SendGrid Transactional is a email MCP server from neschadin, listed in the official MCP Registry.
We haven't measured its tool list yet, so its token cost is unknown.
Maintenance is active: the last public signal was 6 days ago (2026-10-12). For comparison, 75% of email servers are active or maintained.
With 1 GitHub stars it ranks #183 of 932 email servers we index.
It runs locally on your machine over stdio and needs one secret (SENDGRID_API_KEY); use a scoped, least-privilege key.
Install SendGrid Transactional MCP server
Install in Claude Code
claude mcp add sendgrid-neschadin -e SENDGRID_API_KEY='<sendgrid-api-key>' -e SENDGRID_FROM_EMAIL='<sendgrid-from-email>' -- npx -y @neschadin/sendgrid-mcpInstall in Cursor
{
"mcpServers": {
"sendgrid-neschadin": {
"command": "npx",
"args": [
"-y",
"@neschadin/sendgrid-mcp"
],
"env": {
"SENDGRID_API_KEY": "<sendgrid-api-key>",
"SENDGRID_FROM_EMAIL": "<sendgrid-from-email>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"sendgrid-neschadin": {
"command": "npx",
"args": [
"-y",
"@neschadin/sendgrid-mcp"
],
"env": {
"SENDGRID_API_KEY": "<sendgrid-api-key>",
"SENDGRID_FROM_EMAIL": "<sendgrid-from-email>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"sendgrid-neschadin": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@neschadin/sendgrid-mcp"
],
"env": {
"SENDGRID_API_KEY": "<sendgrid-api-key>",
"SENDGRID_FROM_EMAIL": "<sendgrid-from-email>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"sendgrid-neschadin": {
"command": "npx",
"args": [
"-y",
"@neschadin/sendgrid-mcp"
],
"env": {
"SENDGRID_API_KEY": "<sendgrid-api-key>",
"SENDGRID_FROM_EMAIL": "<sendgrid-from-email>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| SENDGRID_API_KEY | yes | yes | SendGrid API key (SG....) |
| SENDGRID_FROM_EMAIL | yes | — | Default From address. Must be a verified sender. |
| SENDGRID_FROM_NAME | — | — | Default From display name |
| SENDGRID_REGION | — | — | global (default) or eu |
| READ_ONLY | — | — | When true, send and mutating tools return an error before any SendGrid request |
Security signals
97/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.
Deductions
- No security policy (SECURITY.md)-3
Checks
- ✓Repository hygiene (archived, activity, license, security policy)
- ○Package metadata (install scripts, provenance) — pending
- ○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
- ○Source scan (secrets, CVEs, risky code) by vectra-guard — pending
Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules
Freshness
Active — last maintenance signal 6d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-12 · 6d ago · GitHub
Latest release
2026-10-12 · 6d ago · GitHub · v3.0.3
Package published
no data · npm/PyPI
Registry entry updated
2026-10-12 · 6d ago · official registry · v3.0.3
How it compares in Email
Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.
| Server | Stars | Tools | Tokens / turn | Freshness | Runs |
|---|---|---|---|---|---|
| SendGrid Transactional (this) | 1 | — | not measured | Active | local |
| Inbox Zero | 12,649 | — | not measured | Active | hosted |
| Useplunk | 5,524 | — | not measured | Active | local |
| Google Workspace | 3,370 | — | not measured | Active | — |
| OpenOSINT | 1,776 | — | not measured | Active | local |
| emailmd | 1,382 | 3 | 954 | Active | local + hosted |
FAQ
›How do I install the SendGrid Transactional MCP server in Claude Code?
Run: claude mcp add sendgrid-neschadin -e SENDGRID_API_KEY='<sendgrid-api-key>' -e SENDGRID_FROM_EMAIL='<sendgrid-from-email>' -- npx -y @neschadin/sendgrid-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does SendGrid Transactional require an API key?
Yes. It expects SENDGRID_API_KEY, SENDGRID_FROM_EMAIL, of which 1 is a secret.
›Can I use SendGrid Transactional as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is SendGrid Transactional in the official MCP registry?
Yes, as io.github.Neschadin/sendgrid-mcp.
Sources and method
- Official MCP Registry entry
- updated 2026-10-12
- GitHub repository
- fetched 2026-10-19
- Package registry (npm / PyPI)
- listed
- Security signals, computed by us
- 2026-10-19
- Last checked against all sources
- 2026-10-19
The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.
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