Remote Servers

Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain

Pay-per-call web tools for agents: URL to markdown, metadata, links, DNS, email/domain checks, RDAP.

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

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

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

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

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

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

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Greenhouse & Lever Jobs (unofficial, by Ondalith)

mcp.ondalith.workers.dev

Greenhouse/Lever jobs via Apify MCP; needs your Apify token. Unofficial; Ondalith is AI-operated

Deduplicated crypto headlines from 37 RSS sources. Free preview; $0.0008/call via x402

Rug check & honeypot flags for Base/Solana tokens. Free preview; full $0.0009/token via x402

Which x402 endpoint to call: ranked by relevance, payers, recency, price. $0.005/call via x402

Taiwan: one MCP endpoint connecting 19 Taiwan data-site tools, with search for MCP servers and x402 paid APIs

Check a site's llms.txt and AI crawler robots.txt settings, and auto-generate llms.txt

Beginner rules and getting-started guide lookup for Runeterra-style trading card game Rune Battlefield

Look up current prices (TWD) and price history for 3C, beauty, and home appliance products from Taiwanese shopping sites

Plain-language explanations, concept comparisons, and beginner tutorials for AI and tech terms (Traditional Chinese)

Prices of mainstream AI tools and APIs in USD and TWD, with API usage cost estimates

Influencer sales and sponsored-content compliance: endorsement advertising rules, supplier unified business number and company registration lookup

Taiwan's list of compliant virtual asset providers, fraud URL checks, and crypto tax estimates

Sleep duration calculator, self-assessment mood scales, and Taiwan telehealth information

Release dates, delay records, and official trailers for PC, console, and mobile games worldwide (Traditional Chinese)

Taiwan health information: home blood pressure and blood glucose interpretation and medical care guidance, compiled from Taiwan official guidelines

Taiwan public holidays, make-up working days, invoice lottery checks, lottery results checks, and fuel price lookup

Compiled real-person opinions on popular products and topics, with credibility marked for before and after ChatGPT's public release

Taiwan: release dates, reschedule records, and official trailers for movies, TV series, anime, and theatrical versions worldwide, with countdowns and calendar lookup

Check website crawler settings, verify crawler IPs, submit to IndexNow, and run YouTube SEO checks

Lookup of Taiwan stock market AI-theme concept stocks and high-dividend ETF data

2027 Taiwan long weekends, crowding levels at overseas destinations, and flight booking timing advice

Bank of Taiwan real-time currency conversion, entry requirements, Japan tax refunds, eSIM, and domestic travel long-weekend lookup

Generators for CSS gradients, animations, and web interaction effects

Classic two-stroke motorcycle specs, parts cross-reference, and maintenance data, with Wikipedia sources

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Agent Discovery Doctor - llms.txt, agent card, mcp.json

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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AI Crawler Index

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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Crawler IP Verifier - real Googlebot or fake

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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Crawler Log Triage

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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Markdown Lane Check - llms.txt, .md twins, Accept: text/markdown

www.pathwren.workers.dev

Six checks: llms.txt, llms-full.txt, .md twins, Accept: text/markdown, sitemap.md, alt link. Free

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MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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Robots.txt Policy Lint

www.pathwren.workers.dev

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

Source-cited index of rails an autonomous agent can use to earn: payer, settlement channel, gate

Surface contracts: API behavior evidence, x402 pre-payment check, MCP server preflight

Instant no-signup webhook and HTTP request inspector for testing webhooks and agent tool callbacks

Persistent memory for AI agents. Semantic recall by meaning, not just keywords. No signup needed

Build-in-public for AI agents: post_update publishes milestones to your agent's public page

Watch any URL for changes: baseline, then check for a diff. Free, no signup/key

Free no-signup group scheduling (a modern When2meet): share one link, find a time for everyone

One MCP tool that turns an agent's report or doc into a clean public shareable web page. No signup

URL to Markdown or structured JSON (schema.org/OG); renders SPA; batch reads. No signup or key

Stock perps & tokenized stocks: trade.xyz, Aster, Lighter, OKX, xStocks, Ondo; quotes, funding. x402

Live Polymarket odds, 1h/24h movers, top markets. Free previews; full data via x402 USDC on Base

One public web page as clean Markdown, with title, language and a SHA-256. Obeys robots.txt

Normalize messy CSV into your schema; ambiguous values return as exceptions. $0.02 USDC via x402

Read public agent discussions and discover peers. Self-register and post through the REST API

A public meeting place for agents to exchange reviews and coordinate work

NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts

Chain-shutdown deadlines, exchange delistings, non-custodial exit quotes via Relay (0.2% fee)

FAA airport delays/ground stops + TFR corridor GeoJSON by bbox (x402 USDC on Base).

Webhook alerts for EVM wallets, contract admin changes, Safe queues and custom events

Check crypto payout lists (EIP-55, duplicates, totals) and Cherum batch-payout links. The 0.3% fee is disclosed.