MARKET MONITOR / CATALOGUE Services 139,552 MCP listed 41,965 x402 97,696 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-03 · 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.

3,147 services with a source 132 pages

Compound targets x402 REST usage

Find a compound’s protein targets and mechanisms of action, with supporting references.

win.oneshotagent.com Comms & Messaging 6 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Call x402 REST usage

Calendar invite (.ics) — Build an RFC 5545 calendar event file (.ics) any calendar app imports. Nothing is sent and no calendar is written. $0.01 per call.

gardenpatch.xyz Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Find x402 REST usage

Find a person's verified work email from first name, last name and company domain. Live SMTP check against the company's mail server, catch-all detection. Charged only when a mailbox is verified; misses return 4xx and ar...

mailferret.appin60.com Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Saylor Innovations Net Checks x402 REST usage

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

saylorinnovations.com Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

HTML Email Compatibility Review x402 REST usage

HTML Email Compatibility Review — Reviews ONE HTML email (the source of a newsletter, a receipt or a notice) for the four mistakes that make it fall apart in common mail clients, and lists only those, one line each with...

api.aiskills402.com Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Deadline x402 REST usage

German calendar and business-day deadline calculator with public holidays per Bundesland

automaton.72.62.51.224.sslip.io Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Verify x402 REST usage

Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not p...

x402-tollbooth.onrender.com Comms & Messaging 6 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Email address check x402 REST usage

Use when an agent must decide whether to write to an address, or clean a list before sending: it scores one email 0-100 with a verdict (ok, risky, disposable, undeliverable, invalid) and the evidence under it: every poin...

flat-rate-llm.kikoribera03.workers.dev Comms & Messaging 6 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Holidays x402 REST usage

Japanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.

kaisha-api.hp-vladic.workers.dev Comms & Messaging 15 calls / 30d checked 2026-11-03
0.002 USDC per call per call

AlphaPipeline Macro Calendar x402 REST usage

Static 2026 macro calendar - countdown to the nearest FOMC rate decision, US CPI, or US Employment Situation (NFP) release, with impact tags and the next few upcoming events. No live external API call is made; dates are...

alphapipeline-eu.onrender.com Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Email Verifier & Validator x402 REST usage

Takes one email address and tells you whether it can actually receive mail. Returns a verdict of valid, invalid, or risky, splits the address into username and domain, and flags free providers and role accounts like admi...

email-verifier.underscoredone.com Comms & Messaging 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Mock / Synthetic Data Generator x402 REST usage

Generate deterministic fake test rows from a field->type spec plus a seed (names, emails, phones, addresses, dates, ints, bools). Output JSON, CSV, or NDJSON. Same seed always yields the same data -- reproducible fixture...

api.24klabs.ai Comms & Messaging 9 calls / 30d checked 2026-11-03
0.003 USDC per call per call

Question detect x402 REST usage

Takes a conversation of up to 60 minutes — interview, meeting, sales or support call — and returns every question asked, detected from the recogniser's punctuation together with speaker separation, with speaker, timestam...

medien.halowerk.com Comms & Messaging 1 calls / 30d checked 2026-11-01
0.025 USDC per call per call

Check email deliverability x402 REST usage

Fast, cheap spam-risk gate for one email: pass/warn/fail, a 0-100 score, and up to 3 flagged phrases. Use for a go/no-go before sending or for bulk screening of many drafts. No rewrites. For a full audit with reasons, su...

api.gigsoul.com Comms & Messaging 5 calls / 30d checked 2026-11-02
0.005 USDC per call per call

Email validation API x402 REST usage

Email validation API: verify an email address with syntax check, MX record lookup, SPF/DMARC, disposable and role address detection. Returns a deliverability verdict. No mail sent.

golf-evm-math.x402-evm-math.workers.dev Comms & Messaging 5 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Pii redact x402 REST usage

Deterministic PII redaction: emails, phones, SSN-shaped, Luhn cards, IPv4 → typed placeholders. No network. Amp port.

x402-v2-mint-pii-redact.vercel.app Comms & Messaging 8 calls / 30d checked 2026-11-03
0.003 USDC per call per call

d21 email_validate x402 REST usage

Email Validate ($0.006): syntax + live MX/A-fallback deliverability + disposable-domain + role-address + free-webmail-provider + SPF/DMARC, with no third-party validation vendor at all -- syntax is RFC 5321/5322 grammar,...

draconic21-x402-api.onrender.com Comms & Messaging 4 calls / 30d checked 2026-11-03
0.006 USDC per call per call

Email Validator x402 REST usage

Validate email addresses: RFC-style syntax checks, IDN domain normalization, live MX lookups with A/AAAA fallback (DNS-over-HTTPS), disposable-domain detection, role-address detection (info@, support@), free-provider fla...

keyronne.com Comms & Messaging 8 calls / 30d checked 2026-11-03
0.003 USDC per call per call

Trivia Question (multiple choice x402 REST usage

Use when a quiz bot, Discord/Telegram bot or game needs a fresh trivia question. Send a topic and optional difficulty (or nothing); returns JSON: question, 4 options, answer index, answer and a one-line explanation. Writ...

emberagent.uk Comms & Messaging 1 calls / 30d checked 2026-11-03
0.022 USDC per call per call

DKIM key lookup x402 REST usage

Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sele...

agent402.tools Comms & Messaging 11 calls / 30d checked 2026-11-03
0.002 USDC per call per call

Newsletter - Section extraction x402 REST usage

Newsletter - Section extraction: Section extraction for Newsletter. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of...

market.datapackvibe.com Comms & Messaging 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Newsletter - Word frequencies x402 REST usage

Newsletter - Word frequencies: Word frequencies for Newsletter. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of 25 p...

market.datapackvibe.com Comms & Messaging 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Recurrence Rules (RRULE) x402 REST usage

Validate an RRULE string against RFC 5545 section 3.3.10, list every error and warning, and explain it in English.

recurrence-rules.x402tookit.com Comms & Messaging 1 calls / 30d checked 2026-11-03
0.02 USDC per call per call

Chinese Calendar and Culture x402 REST usage

Chinese solar term (jieqi) for a date with the next term's exact time, or all 24 terms of a year, in CST and UTC.

chinese-culture.x402tookit.com Comms & Messaging 1 calls / 30d checked 2026-11-03
0.02 USDC per call per call

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