All services

Compute SHA-256, SHA-512, SHA-1 or MD5 hashes for any text in milliseconds. Checksums, signatures and dedup for agent pipelines. Pay per call with USDC (x402) or credits - archtools.dev

Parse RSS/Atom feeds into structured JSON. Pay per call with USDC (x402) or credits - archtools.dev

Geo, ISP, VPN/proxy detection. Pay per call with USDC (x402) or credits - archtools.dev

Recent OFAC list changes (adds/removals/modifications, rolling 90 days) — skip full re-screens on quiet weeks

Newest headlines from a deduped multi-source pile (GDELT + Hacker News + major RSS + Google News), newest first — filter by category, source, and language

Check up to 100 email addresses in one paid call, billed per address.

Web search with structured results - title, URL and snippet - ready for agent consumption. Fresh results in one POST. Pay per call with USDC (x402) or credits - archtools.dev

Registers your x402 service and returns a publisher_id, publisher_key, wallet, and terms version. The key unlocks free event reporting and intent reports on your own service. No placement guarantee — registry health and reputation apply. Store the key securely; it is shown once.

Seoul 3-day forecast — temperature, sky, rain chance every 3 hours

Single-Family Rental (SFR) underwriting — buy-and-hold analysis with annual projections, DSCR, cap rate, CoC return, IRR, MOIC, and exit valuation over a configurable hold period.

DCF valuation with exit multiple or Gordon Growth terminal value. Returns enterprise value, equity value, implied share price, and WACC vs exit multiple sensitivity matrix.

Fix-and-flip underwriting — models purchase, rehab, carry costs, and sale to produce net profit, ROI, annualized return, and a GO/NO-GO verdict.

Short-Term Rental (STR) underwriting — quarterly ADR and occupancy inputs yield CoC return, IRR, MOIC, NOI, and a GO/NO-GO verdict. Covers Airbnb, VRBO, and vacation rental acquisitions.

All ~30 currencies at the most recent ECB daily reference fixing, rebased to any covered currency — dated, attributed, agent-clean JSON

Largest 13F managers for a quarter by total reported value — institutional leaderboard and discovery surface

Chainlink native-token USD prices (ETH/BNB/POL) with round metadata

US IPO pipeline — companies currently in registration (S-1/F-1), filterable by stage, recency, SIC and domestic/foreign

List & search Pokemon species by name, type or Pokedex range — paginated structured JSON reference for game agents

Base address -> agent-ready on-chain profile: EOA or contract, ETH and major-token holdings, token or NFT metadata, EIP-1967 proxy detection, activity, and a derived profile label. Uses public Base mainnet RPC with no account or API key. Useful before an agent sends funds, swaps, or calls a contract.

Search 1 to 10 U.S. federal grant queries in one request with the searches input. Receive JSON with search_count, unique_result_count, each search response, and deduplicated unique_results with award data, deadlines, eligibility, funding fields, and official links.

Provide an API origin and inline OpenAPI document, with optional names and tags. Receive JSON containing a validated mpp.dev service entry, warnings, and ready-to-copy TypeScript without a remote fetch.

Security analysis for any ERC-20 token contract

This is the human and artifact gratitude graph, not endpoint discovery. Supply one required subject using handle:<canonical-handle> or repo:<owner/repo>. Legacy handle and repo query parameters remain accepted for compatibility but are no l

Live prediction-market odds for one crypto asset — nearest liquid market, % odds, venue — plus whether the odds agree with current social sentiment (?asset=BTC). Descriptive research, not financial advice.