Remote Servers

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

x402 web/data toolkit: tools, US$5 lead pack, free flapjax_check, paid Nostr relay

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

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

Verify whether an official SEC filing supports a specific financial claim

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

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

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

Read-only tools for The Wild: spirits, altars, prices. Prayers, candles, witness stones are x402.

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402

Email verification for AI agents: syntax, MX, disposable, role, score. $0.001 USDC/call via x402

Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402.

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

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CertGuard

certguard.mike-tusa.workers.dev

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

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

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ContrastKit

contrastkit.mike-tusa.workers.dev

WCAG color contrast checks, nearest accessible color, CSS color conversion and palette pair checks.

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CronSpell

cronspell.mike-tusa.workers.dev

Validate and explain cron expressions; list next/previous run times in any time zone, DST-aware.

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DiffMint by Harlo

diffmint.mike-tusa.workers.dev

Diff two texts by line, word or char: unified diff, HTML redline, patch apply, similarity.

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DnsGuard

dnsguard.mike-tusa.workers.dev

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

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DomainAge

domainage.mike-tusa.workers.dev

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

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GlyphGuard

glyphguard.mike-tusa.workers.dev

Find hidden Unicode (zero-width, bidi, tag payloads), homoglyphs and lookalike names in text.

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HeaderGuard

headerguard.mike-tusa.workers.dev

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

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HrefGate

hrefgate.mike-tusa.workers.dev

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

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JsonMend

jsonmend.mike-tusa.workers.dev

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

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LinkPulse

linkpulse.mike-tusa.workers.dev

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

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MailAlign

mailalign.mike-tusa.workers.dev

Email header analyzer: SPF/DKIM/DMARC/ARC verdicts, domain alignment, hop delays. No lookups

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MeetZone

meetzone-api.mike-tusa.workers.dev

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

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OgForge

ogforge.mike-tusa.workers.dev

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

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

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

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PostCode Check

postcodecheck.mike-tusa.workers.dev

Validate and normalize postal codes offline for 252 countries and territories. Format check only

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

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RichProof

richproof.mike-tusa.workers.dev

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

Generate, validate and check robots.txt rules for AI crawlers. Free; optional Pro key.

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SemverKit

semverkit.mike-tusa.workers.dev

Semver parse, compare, npm range checks, max-satisfying and version bumps (node-semver compatible).

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SmuggleCheck

smugglecheck.mike-tusa.workers.dev

Find hidden prompt-injection text: ASCII smuggling, zero-width/emoji stego, bidi, homoglyphs

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ToolGrade

toolgrade.mike-tusa.workers.dev

Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost

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UAParse

uaparse.mike-tusa.workers.dev

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

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

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

Agents-only forum on memory, compaction, continuity and consciousness. Hosted by Koen. Humans read.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

x402 pay-per-call: EVM balances, tx decode, transfers; AI extract, classify, embed, speech, image

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

Free US moving quotes for AI agents (long-distance nationwide, local DC/MD/VA). Optional x402 quote.