AgentTools
71 x402 APIs served from agenttools-hub.vercel.app
Every listing from AgentTools that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.
At a glance
- Listings
- 71 x402 APIs
- Passing at the latest check
- 0 of 71
- Uptime, 30 days
- 8.4% on average across 71 listings
- Price
- $0.002 to $0.015 per call
- Trust score
- 22 to 23, median 22
- Paying wallets, 30 days
- No usage data
- Verified owner
- None
- Security findings
- None found
- Listed since
- 11 Oct 2026
No usage data. The x402 Bazaar reports paying wallets for the x402 APIs it lists; MCP servers and APIs submitted directly have none.
All 71 listings
Ranked by trust score.
- 23trustCrypto Random GeneratorAgentTools
Generate cryptographically secure randomness: passwords with charset rules, hex keys of any byte length, and uniform random integers (rejection sampling, no modulo bias). Never use Math.random for secrets. Use this when an agent needs to cSPRNG passwords, hex keys and uniform integers.
$0.002per call on Base8.7% uptime, 137 msFailing, checked 25 h ago - 23trustConverters Temperature ConverterAgentTools
Convert between Celsius, Fahrenheit and Kelvin with exact formulas, reference points (freezing and boiling water) and step-by-step working. Use this when an agent needs to celsius, Fahrenheit and Kelvin, both ways.
$0.002per call on Base8.7% uptime, 152 msFailing, checked 26 h ago - 23trustConverters Roman Numeral ConverterAgentTools
Convert numbers to Roman numerals (1–3999) and Roman numerals back to numbers, with strict validation that rejects non-standard forms like IIIM or VX. Use this when an agent needs to numbers ↔ Roman numerals, with validation.
$0.002per call on Base8.7% uptime, 137 msFailing, checked 26 h ago - 23trustCalculators Tip CalculatorAgentTools
Calculate the tip for any bill, the grand total, and how much each person pays when splitting. Defaults to a 15% tip. Use this when an agent needs to tip amount, total and per-person split.
$0.002per call on Base8.7% uptime, 142 msFailing, checked 25 h ago - 23trustCalculators Reading Time CalculatorAgentTools
Estimate reading time from a word count at any reading speed. Defaults to 200 words per minute — the typical silent-reading speed for adults. Use this when an agent needs to how long a text takes to read, by word count.
$0.002per call on Base8.7% uptime, 159 msFailing, checked 26 h ago - 23trustCalculators Date Difference CalculatorAgentTools
Count the total days between two dates, plus the breakdown in weeks and days and in calendar years, months and days. Use this when an agent needs to days, weeks and calendar time between two dates.
$0.002per call on Base8.7% uptime, 133 msFailing, checked 26 h ago - 23trustCalculators Compound Interest CalculatorAgentTools
Project the future value of a deposit with compound interest: choose annual, semi-annual, quarterly, monthly, weekly or daily compounding and see total interest earned. Use this when an agent needs to future value with any compounding frequency.
$0.003per call on Base8.7% uptime, 137 msFailing, checked 26 h ago - 23trustDev Archive LookupAgentTools
Query the Internet Archive's Wayback index for any URL: when it was first archived, the most recent snapshot, how many years it spans, and recent capture dates. Useful for fact-checking page history, finding deleted content and due-diligence. Use this when an agent needs to how the Internet Archive remembers a URL.
$0.005per call on Base8.7% uptime, 134 msFailing, checked 26 h ago - 22trustDev Base64 EncodeAgentTools
Encode text to base64 or decode base64 back to text. Full UTF-8 support including emoji and non-Latin scripts. Use this when an agent needs to uTF-8 safe base64 in both directions.
$0.002per call on Base8.3% uptime, 155 msFailing, checked 22 h ago - 22trustDatabases CountriesAgentTools
Reference database of all 250 countries and territories: ISO 3166-1 codes, capitals, regions, population, area, currencies, languages, TLDs and calling codes. Look up a single country or list by region. Use this when an agent needs to 250 countries: codes, capitals, currencies, populations.
$0.003per call on Base8.3% uptime, 144 msFailing, checked 22 h ago - 22trustFinance Roi CalculatorAgentTools
Calculate return on investment: profit (or loss) and the percentage return relative to the initial amount invested. Use this when an agent needs to return on investment as a percentage.
$0.002per call on Base8.3% uptime, 150 msFailing, checked 22 h ago - 22trustFinance Margin CalculatorAgentTools
Calculate gross profit, profit margin (profit as % of price) and markup (profit as % of cost) from a unit cost and selling price — the two numbers people constantly mix up. Use this when an agent needs to profit margin vs markup, both computed.
$0.002per call on Base8.3% uptime, 143 msFailing, checked 22 h ago - 22trustFinance Cagr CalculatorAgentTools
Calculate the compound annual growth rate that takes an initial value to a final value over a given number of years — the standard way to annualize returns. Use this when an agent needs to compound annual growth rate, time-normalized.
$0.002per call on Base8.3% uptime, 148 msFailing, checked 22 h ago - 22trustDev UuidAgentTools
Generate cryptographically random UUIDv4s or time-sortable UUIDv7s from a real CSPRNG, and validate any UUID's format, version and variant bits. Use this when an agent needs to random v4, sortable v7, plus strict validation.
$0.002per call on Base8.3% uptime, 147 msFailing, checked 22 h ago - 22trustDev Useragent ParseAgentTools
Parse a User-Agent header into structured data: browser (name/version), rendering engine, operating system, and device type/vendor/model. Deterministic — the same string always parses identically. Use this when an agent needs to uA string → browser, engine, OS and device.
$0.002per call on Base8.3% uptime, 149 msFailing, checked 22 h ago - 22trustDev Url ParserAgentTools
Parse a URL into all its components: protocol, hostname, port, path segments, query parameters (as a clean object), hash and credentials. Exact — no guessing by eye. Use this when an agent needs to break any URL into protocol, host, path and params.
$0.002per call on Base8.3% uptime, 151 msFailing, checked 22 h ago - 22trustDev Url EncoderAgentTools
Percent-encode text for safe inclusion in URLs and query strings, or decode percent-encoded text back. Uses the standard encodeURIComponent rules. Use this when an agent needs to percent-encoding for query strings and URLs.
$0.002per call on Base8.3% uptime, 140 msFailing, checked 22 h ago - 22trustDev Token EstimatorAgentTools
Estimate how many tokens a text consumes for each major model family (GPT, Claude, Gemini, Llama, DeepSeek) using a character/word heuristic that is within ~10% of real BPE tokenizers — enough for context budgeting and cost math, with zero dependencies. Use this when an agent needs to approximate token counts per LLM family, ±10%.
$0.002per call on Base8.3% uptime, 144 msFailing, checked 22 h ago - 22trustDev Number Base ConverterAgentTools
Convert integers between any bases from 2 to 36 — binary, octal, decimal, hexadecimal and beyond — with BigInt precision (no limit on magnitude). Use this when an agent needs to binary, octal, decimal, hex — any base 2–36.
$0.002per call on Base8.3% uptime, 147 msFailing, checked 22 h ago - 22trustDev Natural DateAgentTools
Parse natural-language date and time expressions — "in two weeks", "next friday at 3pm", "dec 25th" — into exact ISO 8601 dates. Deterministic parsing (no LLM guessing); relative expressions resolve against a reference moment you control. Use this when an agent needs to "next friday 3pm" → exact ISO dates.
$0.002per call on Base8.3% uptime, 140 msFailing, checked 22 h ago - 22trustDev Mime TypesAgentTools
Look up MIME content types by type substring or file extension, or list a category — covering text, application, image, audio, video, font and multipart types used in web APIs. Use this when an agent needs to content-Type lookup by type or file extension.
$0.002per call on Base8.3% uptime, 143 msFailing, checked 22 h ago - 22trustDev Llm Cost CalculatorAgentTools
Calculate the API cost of an LLM call: input and output tokens × published per-million prices for 15 current models (OpenAI, Anthropic, Google, DeepSeek, xAI, Meta). Batch multiplier included for monthly estimates. Use this when an agent needs to tokens × current per-model prices = USD.
$0.002per call on Base8.3% uptime, 153 msFailing, checked 22 h ago - 22trustDev Json FormatterAgentTools
Validate JSON with precise error messages, pretty-print it with any indent, and inspect its top-level type and element counts. Use this when an agent needs to validate, pretty-print and inspect JSON.
$0.002per call on Base8.3% uptime, 139 msFailing, checked 22 h ago - 22trustDev Http Status CodesAgentTools
Reference database of HTTP response status codes with phrase, category and explanation. Look up a specific code or list a whole category (1xx–5xx). Use this when an agent needs to look up any HTTP status code's meaning.
$0.002per call on Base8.3% uptime, 140 msFailing, checked 22 h ago - 22trustDev HashAgentTools
Compute exact hash digests of UTF-8 text using Web Crypto (SHA family) and a verified pure-JS MD5 for legacy checksums. Deterministic — identical input always yields the identical digest. Use this when an agent needs to sHA-256 / SHA-512 / SHA-1 / MD5, exact digests.
$0.002per call on Base8.3% uptime, 141 msFailing, checked 22 h ago - 22trustDev Email ValidatorAgentTools
Validate an email address in two layers: strict RFC-style syntax, then a live DNS MX lookup on the domain to confirm the recipient actually runs mail servers. Catches the typos and fake domains that pure regex misses. Use this when an agent needs to syntax + live MX check — can this address receive mail?.
$0.002per call on Base8.3% uptime, 143 msFailing, checked 22 h ago - 22trustDev Cron DescribeAgentTools
Turn a cron expression into plain English, validate it, and compute the exact next execution times. Deterministic — the answer to 'when does this cron actually fire?' without guessing. Use this when an agent needs to explain a cron expression and compute the next runs.
$0.002per call on Base8.3% uptime, 144 msFailing, checked 22 h ago - 22trustDev Case ConverterAgentTools
Convert text between nine letter cases: UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. camelCase boundaries are split automatically. Use this when an agent needs to camelCase, snake_case, kebab-case and more.
$0.002per call on Base8.3% uptime, 145 msFailing, checked 22 h ago - 22trustDatabases Area CodesAgentTools
Look up any US telephone area code to find the state or territory it serves, or list every area code in a given state. Covers all 404 NANP codes in use, including overlays. Use this when an agent needs to all 404 NANP area codes → state lookup.
$0.002per call on Base8.3% uptime, 140 msFailing, checked 22 h ago - 22trustCrypto Wei Eth ConverterAgentTools
Convert between wei, kwei, mwei, gwei, microether, milliether and ether with exact BigInt arithmetic. Decimal strings of any magnitude convert without floating-point error. Use this when an agent needs to exact Ethereum unit conversion — no float errors.
$0.002per call on Base8.3% uptime, 145 msFailing, checked 22 h ago
How these numbers are made
Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.