MARKET MONITOR / CATALOGUE Services 132,655 MCP listed 40,868 x402 91,867 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-31 · 3 sources

Comms & Messaging

Email, chat, SMS and notification delivery. Most of these need the operator’s own account or key before anything is sent.

3,046 services with a source 127 pages

Public Holiday Calendar Verdict x402 REST

Paid public-holiday calendar + planning verdict (cycle 215, x402 $0.01) - GET ?country=<ISO2>&year=<YYYY> OR ?sample=1|2|3 OR POST application/json {country|year}. KEYLESS Nager.Date public-holidays API (no key, no accou...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email SPF Record Density x402 REST

Paid deep SPF record parser + DNS-lookup budget auditor (cycle 160 restored 2026-10-17, x402 $0.001) - parses v=spf1 into its directive list, classifies each mechanism per RFC 7208 SS5 (pass/fail/softfail/neutral/literal...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Smtp Credential Leak Probe x402 REST

Paid SMTP credential-leak probe (cycle 158, x402 $0.0005) - actively probes each MX host on ports [25, 465, 587] for credential-handling vulnerabilities. Per-port: opens TCP, reads banner, sends EHLO, captures AUTH mecha...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Smtp Openrelay Test x402 REST

Paid SMTP open-relay test (cycle 154) - actually attempts MAIL FROM + RCPT TO against each MX host. Resolves MX via Cloudflare DoH, opens TCP/25, sends EHLO + MAIL FROM:<external> + RCPT TO for both local-domain and fore...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Dane Tlsa Probe x402 REST

Paid DANE/TLSA + SMTP STARTTLS active probe (cycle 137, x402 $0.001) - resolves MX for domain, looks up _25._tcp.<mxhost> + _587._tcp.<mxhost> + _465._tcp.<mxhost> TLSA records (RFC 6698/7672), opens SMTP socket to MX:25...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email Spam Assassin Score x402 REST

Paid heuristic email spam score for AI-agent triage (cycle 123, x402 $0.001) - accepts POST text/plain raw email source (RFC822 headers+body) or GET ?header=<url-encoded> or GET ?url=<.eml URL>; parses headers+body and c...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email BIMI Vmc x402 REST

Paid BIMI (Brand Indicators for Message Identification) + VMC (Verified Mark Certificate) validator (cycle 105) — probes default._bimi.<domain> TXT per RFC 8848; parses v=BIMI1; l=<SVG URL>; a=<VMC URL>; s=<selector>; HE...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email Header Parser x402 REST

Paid RFC822 email-header forensics (cycle 101) — POST text/plain raw email source OR pass ?header=<RFC822> (256KB cap); folds continuation lines, parses per-Received hop (from/by/with-protocol/id/for-address/ips/delay/ti...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email Deliverability Audit x402 REST

Paid bulk-sender email-deliverability verdict (cycle 100) — composes MX + SPF + DKIM + DMARC + MTA-STS + TLS-RPT + provider fingerprint into a single 0-100 deliverability score with A-F grade and findings[]. Different fr...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Comms & Messaging checked 2026-10-29
0 USDC per call per call

DMARC check x402 REST

DMARC check for a domain: finds the TXT record, policy mode and aggregate-reporting signal for email trust decisions.

relay402.georgespring.workers.dev Comms & Messaging checked 2026-10-31
0.005 USDC per call per call

DNS lookup x402 REST

DNS-over-HTTPS lookup for common record types, normalized into a risk report for web and email agents.

relay402.georgespring.workers.dev Comms & Messaging checked 2026-10-31
0.003 USDC per call per call

Email deliverability x402 REST

email deliverability and spoofing check from DNS: MX, SPF and DMARC records with concise risk flags.

relay402.georgespring.workers.dev Comms & Messaging checked 2026-10-31
0.005 USDC per call per call

macOS Apps MCP

Mail, Calendar, Reminders, Notes, Messages and more on macOS: cited pointers, previewed deletes

elfensky Comms & Messaging checked 2026-10-26
no price published

Sadasend MCP

Transactional email API & AI agent safety runtime with 12 scoped tools and SpendGuard.

SadaSend Comms & Messaging checked 2026-10-26
no price published

Perfect Clock MCP

Find meeting times across time zones and compare working hours.

cc.perfectclock Comms & Messaging checked 2026-10-30
no price published

Arrumou Neural MCP

Manage vacation rentals, bookings, calendars and operations with OAuth and action approvals.

brunoreisportela Comms & Messaging checked 2026-10-26
no price published

IL Co MCP

Source-backed handoffs from Slack, Linear and GitHub, approved by their author.

io.github.IL-CONCETTO Comms & Messaging checked 2026-10-26
no price published

WhatsApp Business API by Wassenger MCP

Send and read WhatsApp messages, templates, chats and campaigns through the official Business API.

wassengerhq Comms & Messaging checked 2026-10-29
no price published

Habidu MCP

Read and change your Habidu daily plan: tasks, inbox, routines, streak, journal and the AI coach.

com.habidu Comms & Messaging checked 2026-10-30
no price published

Emitd MCP Server MCP checked

Connect AI agents to Emitd email sending, message tracking, templates, and automations.

tponnam Comms & Messaging checked 2026-10-25
no price published checked

SimpleVerifier MCP

Verify email addresses with a live SMTP mailbox check, check phone number formats and email domains.

Ahmedmkarrar Comms & Messaging checked 2026-10-26
no price published

Sendy SMS MCP

Send SMS and manage contacts in Israel: delivery status, opt-outs, segments, credits.

il.co.sendy Comms & Messaging checked 2026-10-27
no price published

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