Presend MCP Server
https://presend.pages.dev/mcp ↗
Description
Free MCP server: 32 security & developer API tools -- WHOIS, DNS, CVE checks, IP reputation.
What our measurements say
Presend MCP Server is a remote MCP server published at presend.pages.dev. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 538 ms, a delay an agent will notice. It exposes a broad tool surface of 33 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Most tool names clearly indicate their purpose (e.g., 'dns_lookup', 'email_validate')
- Some tools provide detailed parameter specifications with required/optional flags
Weaknesses
- Several descriptions are overly generic (e.g., 'Convert color formats' without context)
- Parameter types use inconsistent/ambiguous data types (e.g., numeric values as strings)
- Multiple email-related tools create potential selection ambiguity
- Missing error handling documentation for edge cases
color— Description lacks context for when/why to use the toolpassword— Numeric parameters (length) defined as string typetimestamp— Parameters lack clear input format specificationsemail_disposable— Overlaps with 'email_validate' and 'email_verify'ip— Missing required parameters in tool definition
Verdict
Event narrative
Sign up free to generateSchema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 14ms → warm 13ms (penalty 1ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
ai_crawler_checkCheck which AI crawlers are allowed by robots.txt
domainstringrequired
base64Encode or decode Base64
actionstringrequiredtextstringrequired
colorConvert color formats
hexstringrgbstringhslstring
csv_jsonConvert between JSON and CSV (GET)
directionstringrequireddatastringrequired
dns_lookupDNS record lookup (A, AAAA, CNAME, MX, TXT, NS)
domainstringrequiredtypestring
email_disposableDetect disposable email domains
emailstringrequired
email_securityDomain email anti-spoofing check (SPF/DMARC/DKIM)
domainstringrequired
email_validateValidate an email address
emailstringrequired
email_verifyCombined email verification
emailstringrequired
faviconFetch a domain's favicon URL
domainstringrequired
ipGet caller IP geolocation
ip_reputationIP reputation check (Spamhaus DROP)
ipstringrequired
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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[](https://mcpmetrics.io/servers/io-github-presendapp-presend-mcp)<a href="https://mcpmetrics.io/servers/io-github-presendapp-presend-mcp"><img src="https://mcpmetrics.io/badge/io.github.presendapp/presend-mcp/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
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