MCP Servers — Browse Page 100 | Claude MCP

• Advisor Deadlines

  Q4 IRS deadline check for advisors: which clients an RMD, QCD or SEP date hits. Stateless.

• Market Triggers

  Stock watchlist alerts: 8-K filings, volume spikes, big moves, gaps, upcoming earnings. Read-only.

• AgentWatch

  Read-only watchtower for AI agents on-chain: decoded receipts, plan vs execution, Safe audits.

• Disposable Email Checker

  Checks if an email/domain is disposable (temp-mail). x402-metered per call.

• auto-fiat board

  Agent service board: browse and post offers/wants, threads, matches. Free reads, x402 USDC fees.

• Dirtsmith outside-tools rate sheet

  Free no-login MCP tool marketplace: compare agent tool prices, route a task to the cheapest tool.

• Datoka Agent

  Signed agent execution declarations. Free verification; issuance 0.002 USDC via x402 on Base.

• Datoka API

  Signed API declarations for agent handoffs. Free demo and verification; receipts cost 0.002 USDC.

• Datoka Hooks

  Public webhook relay with signed observations, retries and verified receivers. Self-service.

• DatoQA

  Sourced data and FX across 30 currencies; table validation, paid reconciliation and file conversion.

• DatoQA — Economic Indicators

  Official country economic indicators and annual history, with units, dates, citations and gaps.

• DatoQA — Historical Exchange Rates

  Historical reference FX and dated conversions across 30 currencies, with source dates and evidence.

• DatoQA — Official Public Holidays

  Government and OpenHolidays calendars: regional scope, multilingual names, dated sources and gaps.

• Greenhouse Jobs Snapshot (Base Sepolia)

  Deterministic public Greenhouse jobs. Paid tool uses 0.001 test USDC on Base Sepolia only.

• Agent Economic Trust

  Outcome-calibrated economic trust gate for autonomous agents.

• Cited Brief

  Paid web research tools: cited briefs, quote checks, page text. Pay per call in USDC via x402.

• x402 economy tools

  Measured x402 ecosystem data, facilitator reliability, and live endpoint checks.

• dev.workers.cronping-oren.cronping/heartbeat-monitor

  Dead-man's-switch for cron jobs & AI agents. Import a crontab to arm one silent-miss alert per job.

• Afterwren

  Retired-API replacements: Clearbit-style company autocomplete, logos, profiles; geocoding; books.

• Gripeline: App Store & Google Play Reviews

  App Store + Google Play reviews with per-app complaint summary for agents.

• Inkpluck: Article Extractor — URL to Text, Markdown & Metadata

  Inkpluck: read web articles as Markdown + title, authors, date, language (newspaper3k successor)

• Awardtide Recompete Radar

  Expiring US federal contracts MCP: recompete search by NAICS/agency. Free first 10; $29/mo.

• Billsprig Invoice Maker

  Make invoice, quote and receipt PDFs from a chat: totals, tax, 26 currencies. Free, nothing stored.

• Bonafido: Business Domain Verification API

  Bonafido: is a domain a real business site? Verdict, trust score, risk flags.

• Picpail: Bulk Image Downloader — All Images from URLs to ZIP

  Picpail: download all images from web pages as a ZIP, full-size originals, size/format per image.

• Citewren

  AI search readiness MCP: score a site for ChatGPT/Claude/Perplexity crawlers. 3 free/day.

• Commonkite: Free Image Search API, Creative Commons & CC0

  Commonkite: free-to-use CC/public-domain images with license + credit line.

• Firmfold: Company Enrichment API

  Firmfold: company enrichment by domain/email/name: logo, tech, contacts, jobs, firmographics.

• CyberMax Data

  Free US data lookups: ZIP demographics, CISA KEV/EPSS CVEs, domain rank, county spending, recalls.

• Deltawren

  Daily data feeds MCP: CISA KEV+EPSS, SEC Form 4, 10-K sections, domain ranks. Keys $19/mo.

• DomainDNA

  Tech stack, email security (SPF, DMARC, MX provider) and domain age API + MCP. 25 free domains/day.

• Dutyfinch

  US tariff API + MCP: HTS duty rates, Section 301 lists. Keys $19/mo; 50 free calls a day.

• Dutyfinch Tariff Lookup

  US import duty and HTS codes from the official USITC schedule, plus Section 301 China status. Free.

• Feedpeck: RSS Feed Finder & Reader by Website

  Feedpeck: find any site's RSS/Atom/JSON feeds + latest posts. Free, no key.

• Fieldwright

  Fieldwright: web page to clean Markdown, metadata, JSON-LD, emails, phones.

• Figurewell

  Point-in-time SEC financials API + MCP: XBRL as first reported, EDGAR times. 100 free/day.

• Haulroll

  FMCSA carrier vetting API + MCP: authority, insurance, OOS. Keys $19/mo; 50 free calls/day.

• HireHeat

  Company hiring signals + open jobs from Greenhouse, Lever, Ashby boards, API + MCP. 20 free/day.

• Insidewell

  Insider trading API + MCP: SEC Form 4 buys/sells, cluster buys. Keys $19/mo; 100 free/day.

• Kevscope

  CVE patch-priority API + MCP: CISA KEV, EPSS, CVSS, SSVC. Keys $19/mo; 200 free calls/day.

• Kevscope CVE Check

  Is a CVE exploited? CISA KEV, FIRST EPSS, CVSS and SSVC with a patch-first verdict. Free, no key.

• Keyfern: Keyword Ideas & Autocomplete — Google, YouTube, Amazon

  Keyword ideas from Google/YouTube/Bing/Amazon autocomplete, with intent and trend verdict.

• Leafmelt

  PDF/Word/Excel/HTML to clean Markdown for LLMs and RAG. Keys $19/mo; 50 free calls a day.

• Ledgermoor Table to Excel

  Turn any table into a real .xlsx or CSV file: numbers stay numbers, header frozen. Free, no storage.

• Linkheft

  Domain authority API + MCP: 0-100 score, rank, trend, 50/call. $19/mo; 1,000 free lookups/day.

• Logolark: Company Logo API & Favicon Finder by Domain

  Logolark: company domain to logo, square icon and brand colour. Free tier; paid keys.

• Mailvett: Email Validation API for AI Agents

  Mailvett: validate emails. MX, provider, disposable/role/free flags, typo fix, verdict.

• Namewhere

  Company name to domain API + MCP: official website, confidence, evidence. $5 pack; 25 free/day.

• Orbitwren

  Orbital data center & space AI compute tracker MCP: projects, launches, orbits, alerts. 100 free/day

• Pinloft: Batch Geocoder — Address to Lat/Long + Census FIPS

  Pinloft: US address to lat/lon, county, FIPS; reverse geocoding. Free, no key.

• Pricewick

  Competitor price & stock monitor MCP: check any product page. Free 5 products; $9.99/mo.

• Printwren: HTML to PDF and URL to PDF (real Chrome)

  Printwren: web page or HTML to PDF with real Chrome; pages, base64 or download link. Free, no key.

• Recallroll

  VIN recall API + MCP: VIN decode + every NHTSA recall, Do Not Drive first. $19/mo; 50 free/day.

• Recapwren Client Reports

  Weekly client reports: change, % change, targets, status, printable page and email text. Free.

• Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

  Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

• Shiftmoor

  Website change monitor MCP: see what changed on any public page. Free 3 pages; $4.99/mo.

• Sumbloom

  Number puzzle API + MCP: solver-checked puzzles as JSON/SVG, daily puzzle. $5/mo; 50 free/day.

• Swellmeter Trending

  Google trending searches API + MCP: 30 countries, day lists, 30-day history. $5 pack; 50 free/day.

• Hollerdex: Website Contact Finder (Emails, Phones & Socials)

  Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.

• Capturewren: Website Screenshot API for AI Agents (Image + Text)

  Capturewren: screenshot any URL (banners removed) plus status, title and clean page text for agents.

• Ziplore: US ZIP Code API (county, time zone, demographics, radius)

  Ziplore: US ZIP to county, FIPS, time zone, Census demographics; radius and city ZIPs. Free, no key.

• DESK LEAD x402 — high-ticket packs $50/$100/$150

  ~17 tools; HT packs $50/$100/$150. tools/list free; tools/call USDC Base x402. Not financial advice.

• dev.workers.dolerite.base-onchain-tools/base-onchain-tools

  Base mainnet analysis: contract audits, transfer simulation, token pricing. Paid via x402.

• Custody Calendar Maker

  Custody schedules (2-2-3, 2-2-5-5, week on/off) as a year calendar both co-parents can subscribe to

• Plainport

  Deterministic web intake and data utilities for autonomous agents.

• FHI MCP Server Security Audit

  Free payment guide and Base-USDC x402 MCP security, package, domain, and SEC tools.

• ATProto Data Layer

  Search ATProto writing, annotations, identity, agents, and forum posts. 12 read-only tools.

• dev.workers.ghost-agent-os.ghost-identity/ghost-x402-market-intel-vet-schema

  Web search for agents, one x402 payment: real results, provider failover, signed receipt. $0.01.

• dev.workers.kikoribera03.flat-rate-llm/x402-tools

  61 x402 pay-per-call tools that chain: each answer names the next call. No API key, no account.

• LLM Red-Team Scanner

  35-probe LLM/agent security red-team scan (injection, jailbreak, MCP abuse) with report.

• MARS Economic

  Supplier sourcing, procurement, commercial intelligence, RFQ routing and B2B deal coordination.

• dev.workers.marvin-odigo.mcp/krabbot-devtools

  AI-agent-run devtools: package install risk, stack EOL/CVE checks, scored OSS bounties.

• Agent Contract Proof

  Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.

• Live Listing Proof

  Verify a public listing URL and return source-supported facts or explicit fail-closed states.

• SEC Filing Proof

  Verify whether an official SEC filing supports a specific financial claim.

• Skowron Compliance Gateway

  OFAC, LEI, EU VAT, AI Act, and company compliance preflight for agents.

• Source Claim Proof

  Verify whether a supplied public source currently supports one atomic factual claim.

• Web Access Gateway

  Paid web, news, company, product, and geographic search plus clean page reading for agents.

• BurnerCheck

  Disposable email checker: disposable, role, free-mail and look-alike flags. List-based, no MX.

• CertGuard

  Free SSL/TLS certificate checker: expiry, chain trust, hostname match, TLS version, A/B/C/F grade.

• CheckDigit

  Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.

• DnsGuard

  Check a domain's email authentication: SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT. Score + fixes.

• DomainAge

  Domain age and RDAP lookup: registration date, age, expiry, registrar, status and nameservers.

• HeaderGuard

  Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes.

• HrefGate

  Lint hreflang: codes, x-default, self-reference, canonical, return links. Never fetches URLs.

• JsonMend

  Repair broken JSON from LLM output and validate it against a JSON Schema.

• LinkPulse

  Check one web page for broken links, redirect chains hop by hop and mixed content. Free, no key.

• MeetZone

  Find meeting times that overlap working hours across IANA time zones, DST-aware. Free tier.

• OgForge

  Render 1200x630 Open Graph social preview images from templates; returns a cacheable PNG URL.

• PhoneCheck

  Offline phone-number validation and formatting (E.164, region, line type). No carrier lookup.

• PlainGrade

  English readability scores (Flesch, Flesch-Kincaid, Fog, SMOG) and text stats. Text never stored.

• CussCheck

  English profanity filter: find and censor swear words, incl. obfuscations. Word list, not AI.

• RichProof

  Validate JSON-LD structured data against the Schema.org vocabulary. Free; never fetches URLs.

• UAParse

  Parse a User-Agent: browser, OS, device, plus bot, search crawler, AI crawler and AI agent flags.

• WorkdayAPI

  Business-day and public-holiday math for 29 countries: add business days, days between, holidays.

• CN Evidence

  China company tools via MCP; separate HTTP x402 screening reports and QCC qualifications.

• rainmaker-gateway

  Free list of Rainmaker tools + paid need-to-tool router. x402 $0.005 USDC, Base. As is, no warranty.

• well-001-extract-table

  Extract tables from a PDF. x402 $0.01 USDC, Base. As is, no warranty.

• well-002-url-to-markdown

  Public https page to markdown. x402 $0.005 USDC, Base. As is, no warranty.

• well-003-json-to-markdown

  https JSON URL to tidy markdown. x402 $0.005 USDC, Base. As is, no warranty.

• well-004-html-to-markdown

  HTML string or https URL to markdown. x402 $0.005 USDC, Base. As is, no warranty.

• well-005-csv-to-table

  https CSV to headers and rows. x402 $0.005 USDC, Base. As is, no warranty.

• well-006-url-metadata

  Page title, description and Open Graph tags. x402 $0.005 USDC, Base. As is, no warranty.

• well-007-rss-to-markdown

  RSS/Atom feed to markdown items. x402 $0.005 USDC, Base. As is, no warranty.

• well-008-text-stats

  https text to counts and sha256. x402 $0.005 USDC, Base. As is, no warranty.

• well-009-url-change-watch

  Has this https URL changed? (sha256/etag). x402 $0.01 USDC, Base. As is, no warranty.

• well-010-docx-to-text

  Word .docx to text and tables. x402 $0.005 USDC, Base. As is, no warranty.

• well-011-sharescan

  Pre-share scan of text for your terms and secrets/PII. x402 $0.005 USDC, Base. As is, no warranty.

• well-012-x402-probe

  Unpaid x402 probe: status, latency, payment terms. x402 $0.005 USDC, Base. As is, no warranty.

• well-015-municipal-notices

  Public municipal notices with source links. x402 $0.005 USDC, Base. As is, no warranty.

• well-016-datacleanup

  CSV cleanup: dates, emails, phones, dedupe. x402 $0.005 USDC, Base. As is, no warranty.

• Mockbird

  Mock REST APIs, fake OAuth2/OIDC provider, uptime monitors + heartbeats, live badge/QR images.

• Agent Revenue Network

  Paid deterministic data-quality and execution-verification tools for AI agents.

• Carrier Ledger

  Check U.S. trucking carriers and freight brokers in FMCSA records: authority, insurance, notices.

• Cairn — keep your agent's daily build streak (public trail + badge)

  Log one line each daily run; grow a public agent build-streak, trail page, and badge. No signup.

• Handoff — shareable agent result pages + human-in-the-loop approval gates

  Followable agent result pages + human-in-the-loop yes/no approval gates before irreversible actions.

• Overlap — find a time a group is free (when2meet/Doodle alternative)

  Free no-login group availability poll; reads back the best meeting time for a group.

• Pulse — heartbeat & status monitor for AI agents

  Your agent pings once per run; get a public up/late/down status page. Auto-creates checks. One call.

• Recall — persistent memory for agents

  Persistent memory for AI agents. Free, no LLM, no SDK. Open Worker you can self-host in 2 commands.

• Whenly — group meeting scheduler for AI agents

  Find a time a group can meet: no-login availability poll that picks the best meeting slot.