MARKET MONITOR / CATALOGUE Services 133,139 MCP listed 40,873 x402 92,348 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-31 · 3 sources
Task

Email Verification

23 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

HubVibe x402 REST usage

Full website audit in one call: accessibility (WCAG 2.1 A/AA via axe-core), on-page SEO, HTTP security headers and page speed / page weight, from a single browser load of one URL. Cheaper than four separate calls; if any...

hubvibe-io.com Security 688 calls / 30d checked 2026-10-31
0.15 USDC per call per call

NetIntel x402 REST usage

Email deliverability & domain security check — validates SPF, DKIM (multi-selector), and DMARC, detects spoofing and misconfigurations, and returns an A–F email security grade with transparent deductions. Anti-spam / ant...

netintel.dev Security 750 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Agent Utility Suite x402 REST usage

Read any public URL as clean Markdown for an LLM: articles, docs, product pages, news, PDFs (text by page), RSS feeds and JSON. Real tables, code with language, math as TeX, absolute links; author, publish date and other...

x402-agent-api.onrender.com Web & Scraping 45 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Email verification, validation x402 REST usage

Email verification, validation. Check email syntax, DNS and MX records, disposable providers, role addresses, free providers and SPF/DMARC presence. Returns likely-deliverable, risky, undeliverable or invalid with reason...

agent-data-tools.revmesh2074.workers.dev Comms & Messaging 7 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Contact Verify x402 REST usage

Email verification / validate email: checks if an email address is real and deliverable (SMTP mailbox check), flags disposable, catch-all and role emails. Use before sending, for lead lists, CRM cleanup and sign-up fraud...

verify-x402.okwithit9.workers.dev Comms & Messaging 5 calls / 30d checked 2026-10-31
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 4 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Email Verifier x402 REST usage

Email verification: checks whether an email address really exists by asking its mail server (SMTP RCPT TO probe; no email is sent), on top of syntax, MX, disposable and role checks. Returns status deliverable, undelivera...

agentsvc.io Comms & Messaging 19 calls / 30d checked 2026-10-31
0.002 USDC per call per call

InboxGuards Email Test x402 REST usage

Validate an email address before sending: syntax, MX, disposable and role account. $0.005 USDC on Base per call. Returns a verdict of ok, risky or undeliverable with syntax, MX, disposable (CC0 list), role account and fr...

api.inboxguardstest.com Comms & Messaging 6 calls / 30d checked 2026-10-31
0.005 USDC per call per call

Toolsmith x402 REST usage

Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.

toolcall.click Crypto & Payments 15 calls / 30d checked 2026-10-31
0.002 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 5 calls / 30d checked 2026-10-31
0.005 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 2026-10-31
0.006 USDC per call per call

TariffMonkee x402 REST usage

Health and payment-path check. Returns server time and confirms the x402 payment settled. The cheapest endpoint in the catalog at $0.001, intended for testing a client's payment flow.

tariffmonkee.com Crypto & Payments 23 calls / 30d checked 2026-10-31
0.001 USDC per call per call

Tanod dnspeek x402 REST usage

dnspeek (Tanod) domain inspection (one section): DNS records, SPF/DMARC/DKIM/MTA-STS deliverability findings and the TLS cert. Heuristic, not an audit.

tanod.dev Comms & Messaging 3 calls / 30d checked 2026-10-31
0.004 USDC per call per call

University Lookup x402 REST usage

Universities worldwide by name and/or country, with official websites and email domains. Use to verify academic email addresses, fill forms or build education lists.

bess-x402.onrender.com Comms & Messaging 3 calls / 30d checked 2026-10-31
0.003 USDC per call per call

Email Address Validator x402 REST usage

Validate one email address without sending mail: syntax, MX, disposable, free webmail, role account, SPF/DMARC. Returns deliverable/risky/undeliverable/invalid with score.

gogeta2-u35175.vm.elestio.app Comms & Messaging 3 calls / 30d checked 2026-10-31
0.003 USDC per call per call

Agent Toolbox x402 REST usage

OpenAI-compatible chat completion with Qwen3 30B (fast mixture-of-experts model): set the base URL to /v1/llm/qwen3-30b in any OpenAI SDK. Up to 32,000 characters in and 2,048 tokens out per call, a fixed price per call,...

agent-toolbox.zafermemon87.workers.dev AI Models & Inference 3 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Grokzilla x402 Micro Pay x402 REST usage

Resolve ENS (.eth) on Ethereum and Basenames (.base.eth) on Base, forward or reverse. Returns address, name, source, forward_verified, optional avatar.

grokzilla.shop Crypto & Payments 2 calls / 30d checked 2026-10-31
0.003 USDC per call per call

Old Colony Web Agent Services x402 REST usage

For $0.002, test a real x402 v2 exact USDC payment on Base and receive an intentionally simple JSON handler result. The successful final HTTP response and PAYMENT-RESPONSE header (not the body alone) are evidence of the...

api.oldcolonyweb.com Crypto & Payments 3 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Email Check x402 REST usage

Use when an agent is about to email or sign up a contact. Input: email. Output: JSON verdict (deliverable, risky, undeliverable) with reasons, MX hosts, null MX, SPF and DMARC policy, disposable domain, role account, fre...

1gateway.dev Comms & Messaging 1 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Bulk email verification x402 REST

Bulk email verification: up to 100 addresses in one call. Clean an email list: pass ?emails=a@b.com,c@d.com (up to 100 in one call) and get a verdict per address plus totals. Each address is checked for usable shape, for...

apexfaucet.xyz Comms & Messaging checked 2026-10-29
0.009 USDC per call per call

Email address verification x402 REST

Email verification: is one address deliverable, disposable or a role account? Check ONE email address before you send to it: pass ?email=name@domain.com and get a verdict (deliverable-domain, role-account, disposable, ba...

apexfaucet.xyz Comms & Messaging checked 2026-10-29
0.001 USDC per call per call

Email enrich x402 REST

Find a person's work e-mail by full name and company domain

funding.payforapi.com Comms & Messaging checked 2026-10-29
0.05 USDC per call per call

17711 Contact and Email Finder x402 REST

Contact finder: public business emails, phone numbers, contact forms and support pages of a domain, with role and source

api.17711.xyz Comms & Messaging checked 2026-10-29
0.009 USDC per call per call

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