MARKET MONITOR / CATALOGUE Services 131,325 MCP listed 40,658 x402 90,735 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-30 · 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.

3,028 services with a source 127 pages

email-verify-gw-distill x402 REST

AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat

email-verify.agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

Email security x402 REST

Use when you need to check whether a domain is protected against email spoofing or set up for deliverability: reads MX (and guesses the mail provider), SPF (qualifier, lookup count), DMARC (policy, pct, report addresses)...

domains-testnet.scrapemole.workers.dev Comms & Messaging checked 2026-10-28
no price published

broker-mx-check x402 REST

broker-mx-check: B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records.

x402broker.com Comms & Messaging checked 2026-10-29
0 USDC per call per call

agentdiet-mx-check x402 REST

agentdiet-mx-check: B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records.

agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

agentdiet-email-check x402 REST

agentdiet-email-check: B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records.

agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

broker-email-validator x402 REST

broker-email-validator: B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records.

x402broker.com Comms & Messaging checked 2026-10-29
0 USDC per call per call

agentdiet-email-validator x402 REST

agentdiet-email-validator: B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records.

agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

broker-disposable-email x402 REST

broker-disposable-email: [disposable-email] B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC reco...

x402broker.com Comms & Messaging checked 2026-10-29
0 USDC per call per call

agentdiet-disposable-email x402 REST

agentdiet-disposable-email: [disposable-email] B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC r...

agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

Proofwire x402 REST

Is this URL alive? Real fetch with redirect chain, TLS, latency and body hash, returned as signed evidence.

verify.reversecaptcha.fun Comms & Messaging checked 2026-10-29
0.001 USDC per call per call

email-verify x402 REST

B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (https://email-verify.agentdiet.dev/v1/...

email-verify.agentdiet.dev Comms & Messaging checked 2026-10-29
0 USDC per call per call

VoipStore x402 REST

Poll one order status; when the SMS has arrived the response carries sms_code and sms_text. Poll until status is received/completed/expired. Automated clients accept the Agent Access Addendum: https://voipstore.xyz/terms...

api.voipstore.xyz Comms & Messaging checked 2026-10-30
0.001 USDC per call per call

DomainCheck x402 REST

Email address check for AI agents (signups, outreach, fraud screening): RFC syntax, disposable / role / free-provider detection, MX and null-MX, SPF/DMARC of the domain, domain age via RDAP, parking, verdict (valid | ris...

domaincheck.agentgate.workers.dev Comms & Messaging checked 2026-10-29
0.001 USDC per call per call

Gate x402 REST

Marketing copy quality gate and pre-publish copy review for autonomous agents about to publish or send ad, landing-page, email, CTA, campaign or GTM copy. Returns a fast PASS/WARN/BLOCK verdict, claim-risk flags and prio...

nexuseval.vercel.app Comms & Messaging checked 2026-10-29
0.01 USDC per call per call

Verify x402 REST

Validate an email address: syntax, MX resolution, disposable-domain check.

email-verification.nordman-tehau.workers.dev Comms & Messaging checked 2026-10-29
0.002 USDC per call per call

Dns lookup x402 REST

Resolve DNS records for a domain (A, AAAA, CNAME, MX, NS, TXT, SOA, CAA) and identify its DNS host and email provider.

aipaygen.com Comms & Messaging checked 2026-10-29
no price published

Email security x402 REST

Audit a domain's email security: SPF, DMARC policy, DKIM keys, MX/email provider, MTA-STS, TLS-RPT and BIMI, with an A-F grade, a spoofability verdict and plain-English issues.

aipaygen.com Comms & Messaging checked 2026-10-29
no price published

enrich-email x402 REST

Validate and classify an email DOMAIN from public DNS: MX hosts + mail-provider, SPF and DMARC policy, plus disposable / free-webmail / role-account flags and a deliverability signal. No SMTP probing of individual mailbo...

payai.agentstools.dev Comms & Messaging checked 2026-10-29
0.005 USDC per call per call

fraud-fusion-score x402 REST

Fusion anti-abuse risk score for an email and/or IP in one call. Combines domain-level email intelligence (MX, SPF, DMARC, disposable, free, role) with IP reputation into a deterministic 0-100 score with per-dimension re...

payai.agentstools.dev Comms & Messaging checked 2026-10-29
0.01 USDC per call per call

sports-schedule x402 REST

Upcoming fixtures and the game schedule for a major sports league, normalized to one cited JSON. Give a league such as mlb, nhl, nfl, nba or epl and an optional date, and get each scheduled game with both teams, start ti...

payai.agentstools.dev Comms & Messaging checked 2026-10-29
0.004 USDC per call per call

catalyst-calendar x402 REST

Forward-looking FDA regulatory catalyst calendar for one biotech issuer, extracted from primary SEC 8-K and 6-K filings. Give a ticker or CIK and get upcoming PDUFA target action dates, advisory committee meetings, Compl...

payai.agentstools.dev Comms & Messaging checked 2026-10-29
0.03 USDC per call per call

catalyst-upcoming x402 REST

Market-wide upcoming FDA regulatory catalysts across recent SEC 8-K and 6-K filings in a forward window. Get PDUFA dates, advisory committee meetings and other regulatory events for many biotech issuers at once, each gro...

payai.agentstools.dev Comms & Messaging checked 2026-10-29
0.05 USDC per call per call

Cian DNS & Email Auth Audit x402 REST

DNS and email-authentication audit for one domain: A/AAAA presence, NS count and whether the nameservers share a /24, MX (including a null MX), SPF (missing, multiple, +all, ~all, ?all), DMARC (missing, p=none, no rua, p...

cian-x402.netlify.app Comms & Messaging checked 2026-10-29
0.01 USDC per call per call

Sms x402 REST

Service: Verifik AI (https://verifik.x402.paysponge.com/v2/communication/sms)

verifik.x402.paysponge.com Comms & Messaging checked 2026-10-29
0.1 USDC per call per call

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