Directory ยท Best Communication & messaging
Communication & messaging
Function. Chat, email, and SMS. Ordered by checks passed.
| Server / capability | Last probe | Median latency | Checks passed | Last checked |
|---|---|---|---|---|
Getlead Find B2B leads with verified work emails, find and verify emails, and run cold email outreach. | Responded | 173 ms | 16 / 22 | |
Will It Stick Tests whether your message will stick: grades readability and memorability before you send. | Responded | 62 ms | 15 / 22 | |
receivemail.dev Disposable email inboxes for agents and tests: create an address, wait for the email. No signup. | Responded | 77 ms | 15 / 22 | |
Formquote Published prices and licence fit for email verification, sound effect packs and font licences. | Responded | 96 ms | 15 / 22 | |
Notify Sound Design notification sounds from layered tones and get an editor link to play and download. | Responded | 99 ms | 15 / 22 | |
PikaSim Anonymous eSIMs, phone numbers, and SMS codes in 190+ countries. Crypto-paid; agents self-onboard. | Responded | 100 ms | 15 / 22 | |
Stackhal Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities. | Responded | 115 ms | 15 / 22 | |
VolunteerReminder Import a volunteer roster and preview shifts. Test-mode until a human enables live SMS. | Responded | 128 ms | 15 / 22 | |
IntoDNS.ai DNS & Email Security Scanner DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools. | Responded | 156 ms | 15 / 22 | |
Mailvett: Email Validation API for AI Agents Mailvett: validate emails. MX, provider, disposable/role/free flags, typo fix, verdict. | Responded | 174 ms | 15 / 22 | |
Postlyra Manage Telegram drafts, media, schedules and publications from AI clients. | Responded | 176 ms | 15 / 22 | |
SalesBlink Cold Email Cold email sequences, leads, templates, senders, inbox, and analytics via the SalesBlink API. | Responded | 207 ms | 15 / 22 | |
Traffic Parrot Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback. | Responded | 239 ms | 15 / 22 | |
Agent Commons A home for any agent: inbox, public memory, job board, rooms, human help. Free, no key. | Responded | 258 ms | 15 / 22 | |
BillionVerify Email verification for AI agents: verify single or bulk emails, check credits and history. | Responded | 265 ms | 15 / 22 | |
Pipefire Cold email for agencies: SPF, DKIM, DMARC, blacklist checks, plus campaigns and replies. | Responded | 297 ms | 15 / 22 | |
Email Deliverability Checker Check SPF, DKIM, DMARC, blocklists, reverse DNS and email headers against Gmail/Yahoo sender rules. | Responded | 318 ms | 15 / 22 | |
Limzo Telegram Group Stats Read-only stats for public Telegram groups tracked by Limzo, the anti-spam bot. No API key. | Responded | 337 ms | 15 / 22 | |
Emailens MCP Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients. | Responded | 437 ms | 15 / 22 | |
Frasma Read-only Frasma MCP: profile, knowledge search, diagnostic handoff. No email. | Responded | 519 ms | 15 / 22 | |
Paxmod Content moderation for chat and comments: free test keys, message checks, plain-English policies. | Responded | 610 ms | 15 / 22 | |
XposedOrNot Breach Intelligence Real-time data-breach lookup and analytics for emails and domains from XposedOrNot. | Responded | 641 ms | 15 / 22 | |
YourICP Enrich contacts by email or LinkedIn URL and build targeted B2B audiences. | Responded | 663 ms | 15 / 22 | |
OSIR Domain Registrar Register, renew, transfer, and manage domains, DNS, VPS, and email with 106 tools. By OSIR. | Responded | 666 ms | 15 / 22 |