Applications, APIs & agent tools
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Listing ID: x402:00b7331028c8718e88900c4cd1bac9310350248b9ead5f79c52fd11770e59da9
Calculate a transaction's gas fee: gas units × gas price (gwei) gives the ETH cost, multiplied by the ETH price for USD. Exact BigInt math for t…
Listing ID: x402:039b5ad9f2e02f936e4ea954e808fdc2a6197d181c927bf09ba39ececa5d17e7
Generate a valid RFC 5545 iCalendar file from JSON events: proper CRLF line endings, text escaping, line folding at 75 octets and a required DTS…
Listing ID: x402:06eb021eb6eb191e7849b9fa842a903bc7e3d64e16f3b43143c38a549a3d7e8d
Convert Markdown to HTML with GitHub-flavored markdown support (tables, task lists, strikethrough, autolinks). Deterministic — the same markdown…
Listing ID: x402:0dd282785abfa712288feb20d624e5c7ed82dc15ef333eeadaa9c3561af2494a
Split text into retrieval-friendly chunks with a token budget and sentence-aware boundaries. Overlap between consecutive chunks preserves contex…
Listing ID: x402:0f610691195a237d73a8b9489f714c7dfeb26658d9f04638f15060f680cb755b
Convert integers between any bases from 2 to 36 — binary, octal, decimal, hexadecimal and beyond — with BigInt precision (no limit on magnitude)…
Listing ID: x402:10e9eea3ad2b95be7ab0b6238d8f49392e9173a20a218086a308ceafa9699cb9
Validate any EU VAT number against VIES — the European Commission's live registry: validity, registered trader name and address by member state.…
Listing ID: x402:12495e5f8aa742d7c8662fd2c95288904ed5de252a474f6d8bd2c268283b71e2
Read an ERC-20 token balance for any wallet on Base or Ethereum via public RPC eth_call — no key, no indexer. Returns the raw balance, human-rea…
Listing ID: x402:13a68247c9b0b961898b14e66f7a45ce6ff18c32e09bb95ed72727ad5074e35e
Look up any CVE in the US National Vulnerability Database (NVD): CVSS 3.1 score and severity vector, weakness (CWE) classification, human summar…
Listing ID: x402:1403ef3aa9f33b102b1d7766da51b3cea8573ed1fc3c5671323c98ddc6a58248
Scan newly created DEX pools on Solana, Base, Ethereum, BSC, Arbitrum or Polygon, filtered by minimum liquidity and maximum age. Each pool comes…
Listing ID: x402:1ff5bb903be21dbdf9e48f3b65b7c5e4418fb212225ba92b48f642cfed88093c
Fetch a URL and grade its HTTP security headers: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and COO…
Listing ID: x402:2320a9d74b0709ed021545b9e1afe2b1d8138368cb80e49c11353ba13db50a0f
Project the future value of a deposit with compound interest: choose annual, semi-annual, quarterly, monthly, weekly or daily compounding and se…
Listing ID: x402:242b7ed0974be680d1ba04bbdcf35d05344850a06c759276e696c65860405944
Live stablecoin health from DefiLlama: current price vs $1 peg, depeg distance, total circulating supply, backing type and the chain breakdown o…
One product card can include several interfaces. Imported listings keep their source IDs; similar titles may describe different tools. Imported categories and prices are not independently verified. About the catalogue