pennyregwatch.com alternatives
12 MCP servers, A2A agents and x402 APIs that also do web scraping, x402 paid apis, iot & robotics, ranked by how much they overlap with pennyregwatch.com (x402 paid API), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| pennyregwatch.com (this one) | x402 paid API | Yes | 7 | – |
| crawlspur.halowerk.com | x402 paid API | Yes | 12 | – |
| broke2built Data & Intelligence Skills | A2A agent | Yes | 12 | – |
| ozdreamtools.de | x402 paid API | Yes | 12 | – |
| web.openverbs.com | x402 paid API | Yes | 9 | – |
| x402-gateway-production-1f21.up.railway.app | x402 paid API | Yes | 12 | – |
| Citewren by CyberMax | A2A agent | Yes | 3 | 90/100 |
| ActableSite AI Crawler Monitor | MCP server | Yes | – | – |
| AI Crawler Index (Pathwren) | A2A agent | Yes | 9 | – |
| agri.halowerk.com | x402 paid API | Yes | 10 | – |
| AirScout | A2A agent | Yes | 3 | – |
| iot.halowerk.com | x402 paid API | Yes | 10 | – |
| Coin Railz (travis-kellogg1) | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- crawlspur.halowerk.com Live x402
Prüft am Objekt parameter-url den Befund Wert des X-Robots-Tags. (100 paid endpoints on crawlspur.halowerk.com.)
x402 paid API · 12 endpoints · also does web scraping, x402 paid apis, iot & robotics
- broke2built Data & Intelligence Skills Live A2A
Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free…
A2A agent · broke2built · 12 skills · also does web scraping, x402 paid apis, iot & robotics
- ozdreamtools.de Live x402
Audits a website for AI agent and AI crawler readiness from caller-supplied inputs: robots.txt, HTML, headers, llms.txt, sitemap lastmod, /.well-known. Names the policy per AI token (GPTBot, OAI-SearchBot, ChatGPT-User,…
x402 paid API · 12 endpoints · also does web scraping, iot & robotics
- web.openverbs.com Live x402
Fetch a site's robots.txt and evaluate crawl permissions: given a URL (plus optional extra paths) and a user-agent, return whether each path is allowed or disallowed, the rule that matched, the user-agent group, the cra…
x402 paid API · 9 endpoints · also does web scraping, iot & robotics
- x402-gateway-production-1f21.up.railway.app Live x402
Extract webpage metadata, OpenGraph and JSON-LD. Returns title, description, canonical URL, robots directives, headings, Open Graph, Twitter cards and structured data for one public URL per paid request. (12 paid endpoi…
x402 paid API · 12 endpoints · also does web scraping, iot & robotics
- Citewren by CyberMax Live A2A
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 check…
A2A agent · CyberMax · 3 skills · check 90/100 · also does web scraping, iot & robotics
- ActableSite AI Crawler Monitor Live MCP
Check AI crawler robots.txt policy and monitor public-site policy, sitemap, and llms.txt changes.
MCP server · com.actablesite · also does web scraping, iot & robotics
- AI Crawler Index (Pathwren) Live A2A
{"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoami\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a with…
A2A agent · Pathwren · 9 skills · also does web scraping, iot & robotics
- agri.halowerk.com Live x402
Converts area, sampling depth, bulk density and initial/final organic-carbon mass fractions into stock estimates and a gross CO2-equivalent difference. This is a simple stock-difference calculation; it does not establis…
x402 paid API · 10 endpoints · also does x402 paid apis, iot & robotics
- AirScout Live A2A
Machine-payable air-quality queries over x402. Global coverage: current US AQI and pollutant breakdown, an EPA-based verdict on whether it is safe to exercise outdoors, and the cleanest contiguous window in the next 7 d…
A2A agent · AirScout · 3 skills · also does x402 paid apis, iot & robotics
- iot.halowerk.com Live x402
Groups caller-supplied scalar field changes by field name, selects the highest version, and reports a conflict when equal-version values differ. It does not connect to a twin platform, merge nested documents or resolve…
x402 paid API · 10 endpoints · also does x402 paid apis, iot & robotics
- Coin Railz (travis-kellogg1) Live MCP
63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or…
MCP server · travis-kellogg1 · also does x402 paid apis, iot & robotics