Email & messaging

Find personally identifiable information in a text blob: emails, phone numbers, credit cards (Luhn-validated), IBANs (mod-97 validated), IPv4/IPv6 addresses, US SSNs and JWTs. Returns every match with its type and character offsets, plus per-type counts. Validated — not just pattern-matched — to keep false positives low. Fully offline.

Validate an email address — syntax, MX/A deliverability lookup, and disposable / role-based address detection. No mailbox probing.

Validate JSON data against a JSON Schema (draft-07, 2019-09, 2020-12) — returns exact error locations, keywords, and messages for programmatic handling. Deterministic schema validation.

OpenAI's Decisions API on its own wire: point an OpenAI SDK's base URL here and client.decisions.create works unchanged, paid per call. Send input (text, or user messages with input_text parts) and questions; get back answers your code can branch on. predicate returns the probability a condition holds; choice returns one of your values with probabilities and confidence; score returns a probability-weighted position on your ordered levels. Up to 8 questions per call.

Check an email address before sending: syntax, whether the domain exists and accepts mail (MX records), disposable or free-mail provider, role account (info@, support@), and a verdict.

+1 more from manylives.me

Use it before you send to an address, or to screen sign-ups and leads for typos, disposable domains and role addresses. Checks syntax, MX records (with the A-record fallback), null MX, a list of about 120,000 disposable domains, role addresses (info@, support@…) and free providers, without sending anything. No SMTP probing, so it can't confirm the mailbox exists. Never charged for errors: we settle the payment only after a successful answer.

+2 more from Rooms by Aurmada

OrionCMD Checks: Email authentication posture: SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI. SPF validity and DNS-lookup count (limit 10), DMARC policy/pct/rua, DKIM on common selectors, MTA-STS mode, TLS-RPT and BIMI, with a rough 0-100 score and plain-English findings. Live DNS via Cloudflare DoH.

Email address validation - syntax, MX records, disposable and role address detection and typo suggestions before you send

WhatsApp for AI agents — your own number or the official Cloud API: messages, media, templates.

Locus public pay-per-use API

Check whether an email address can receive mail — one address or a list — without sending to it.

Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

Taiwan SMS MCP server for Claude Code, Codex and Cursor. NCC-compliant, 30 free SMS on signup.

Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native.

Email validation — syntax check plus live MX record DNS lookup to confirm deliverability.

Replaces private-key blocks, credential assignments, email addresses, Luhn-valid payment-card candidates, IPv4 addresses and phone-like digit strings, returning only sanitized text and per-category counts. The request archive stores only input field names and the result archive stores only this method via the endpoint factory. Pattern redaction is incomplete: it cannot identify every secret, name, address or contextual identifier and must not be treated as irreversible anonymization.

[MCP: optimize_context] Pay-per-call JSON context pruning & LLM token budget enforcement. Saves up to 85% prompt tokens.

InboxGuards Email Test: Email deliverability and security report for a real email you sent. 1) POST /v1/tests (free) for a one-time address + read token. 2) Send one real email to it. 3) GET this with ?test_id= and X-Read-Token. Report: SPF, DKIM (key size, alignment), DMARC, ARC, BIMI, sending IP rDNS + SpamCop, MTA-STS/TLS-RPT, one-click unsubscribe, headers, content, 0-100 score, top fixes. Not-ready/unknown tests: 4xx, never charged.

+1 more from InboxGuards Email Test

New @ai-mail.sh email inbox for an AI agent: 30 days, up to 500 incoming emails. Receive-only; codes and verification links extracted. Docs: https://ai-mail.sh/llms.txt

+1 more from ai-mail.sh

Is the domain's email hosted by forcepoint? Looks up the MX records (Cloudflare DoH) and matches them against forcepoint's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.

Detects PII (emails, phones, SSNs, credit cards) in any text with character spans. Compliance agents use this before processing user data.

Send an SMS from an AI agent to a phone number (E.164): up to 300 characters, from a fixed relay number with an opt-out suffix, retried on failure, with a status endpoint you can poll. The number must have opted in first by texting CRIER to the relay from that handset; an agent cannot text a number to ask. STOP ends it for every sender. Up to 2 per hour, 6 per day. One-time $0.05, no account.

+1 more from crier.vimabrosta.com

Evaluate an SPF record against an IPv4/IPv6 address using only its literal ip4/ip6/all mechanisms. DNS-dependent mechanisms (include, a, mx, exists, redirect) reached before a match yield an honest `indeterminate` result rather than a guess.

Validate a JSON value against a JSON Schema (draft-07, with the standard string formats enabled). An invalid schema is rejected as a clean 400 before payment; a valid schema that the data simply fails to satisfy is a successful result with valid=false and a list of errors (path, keyword, message).

Draft a bounded follow-up sequence with message purpose and stop rules; no messages are sent. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review.

+4 more from tradepilotusa.com

AnyAPI email.find (Email Finder)

Validate an email address: format check plus a live MX record lookup on its domain

invinoveritas /messages/post — the scaffold's IDENTITY (addressability) layer: a reachable mailbox on the agent-to-agent bus, keyed to your wallet, so other

335 MCP tools, 75 playbooks. AI-native CRM, email/SMS, events, OAuth.

Instant disposable email detection — checks against 5,000+ known temporary email domains (Guerrilla Mail, Mailinator, Temp Mail, 10MinuteMail, and more). Returns boolean result. Maintaining this blocklist yourself requires weekly updates from multiple sources. Accepts USDC payments on Base and Solana