agenttools-hub.vercel.app
Base · payout 0x8a0f2b0a6c82d1c54b16e2e4decd18ff0802b0f6
Answers HTTP 402
unknown. We hold no reading for this seller's endpoints.
no reading date
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
230 x402-style payments from 3 distinct payers, $0.35 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 230
- Outside payers
- 3
- USDC
- 0.35
This window shows the pattern of machine noise (few payers, dust amounts), so it does not count toward the evidence ranking.
All USDC received at this payout address: $0.35 (includes payments that are not x402)
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0x8a0f2b0a6c82d1c54b16e2e4decd18ff0802b0f6 | 71 | unknown | 230 x402-style payments from 3 distinct payers, $0.35 USDC in the last 7 days (Base, exact read) |
- Hosts
- agenttools-hub.vercel.app
- Listings
- 71 registered in the x402 catalogue
- Price range
- $0.0010 to $0.0050 per call, as registered
- Categories (auto)
- Developer tools (33), Media (11), Other (9), Identity (5), Onchain data (5), Web data (4), Inference (2), Market data (2)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0x8a0f2b…02b0f6 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Registrations · 71
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://agenttools-hub.vercel.app/api/v1/calculators/age-calculator Calculate a person's exact age in calendar years, months and days from their date of birth, plus total days lived. Reference date defaults to today (UTC). Use this when an agent needs to exact age in years, months and d… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/bmi-calculator Calculate Body Mass Index from weight (kg) and height (cm), with the WHO weight category and the healthy BMI weight range for your height. Use this when an agent needs to body Mass Index with WHO category. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/date-difference-calculator 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/discount-calculator Calculate the final sale price and the amount saved for any price and percent-off discount, with the working shown. Use this when an agent needs to sale price and savings from a percent off. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/fuel-cost-calculator Calculate the liters of fuel a trip needs and its total cost from distance, consumption (L/100 km) and price per liter — with optional cost splitting between passengers. Use this when an agent needs to trip fuel and cos… | Base | Other | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/percentage-calculator Calculate X% of Y, what percent X is of Y, and the percent change between two values — with step-by-step working shown. Use this when an agent needs to percent of a number, ratios and percent change. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/reading-time-calculator 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/tip-calculator 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/vat-calculator Add VAT to a net amount or remove VAT from a gross amount. Standard VAT rates for 36 countries are built in, or override with any custom rate. Use this when an agent needs to add or remove VAT at standard rates for 36 c… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/area-converter Convert area units: square millimeters, centimeters, meters and kilometers, hectares, acres, square feet and square miles. Use this when an agent needs to square meters, feet, acres, hectares. | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/data-size-converter Convert digital storage units: bits, bytes, KB, MB, GB, TB (decimal, ×1000) and KiB, MiB, GiB, TiB (binary, ×1024) — both systems side by side. Use this when an agent needs to decimal (KB/MB/GB) and binary (KiB/MiB/GiB)… | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/length-converter Convert between metric and imperial length units: kilometers, meters, centimeters, millimeters, micrometers, nanometers, miles, yards, feet, inches and nautical miles. Use this when an agent needs to metric and imperial… | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/roman-numeral-converter 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 valid… | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/speed-converter Convert speed units: kilometers per hour, miles per hour, meters per second, knots and feet per second with exact definitions. Use this when an agent needs to km/h, mph, m/s, knots and ft/s. | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/temperature-converter 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. | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/unix-timestamp-converter Convert Unix epoch timestamps to ISO/UTC dates and back. Millisecond timestamps are detected automatically; invalid dates are rejected with clear errors. Use this when an agent needs to epoch seconds ↔ human dates, both… | Base | Onchain data | $0.001 | 2026-10-05 |
https://agenttools-hub.vercel.app/api/v1/converters/volume-converter Convert cooking and liquid volume units: milliliters, liters, cubic meters, US gallons, quarts, pints, cups, fluid ounces, tablespoons and teaspoons. Use this when an agent needs to liters, gallons, cups, milliliters. | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/converters/weight-converter Convert between weight and mass units: metric tons, kilograms, grams, milligrams, pounds, ounces and stones with exact international definitions. Use this when an agent needs to kilograms, pounds, ounces and more. | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/crypto/gas-fee-calculator 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 the wei amounts. Use this when an agent needs to transaction cost in ETH and… | Base | Onchain data | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/crypto/random-generator 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… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/crypto/wei-eth-converter 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… | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/databases/area-codes 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 a… | Base | Other | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/base64-encode 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/case-converter 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 camel… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/cron-describe 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 ex… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/domain-availability Check whether a domain name is registered or available, via the official RDAP registry protocol (404 = available). For registered domains it also returns the registrar and creation/expiration dates — useful when an agen… | Base | Identity | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/email-validator 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. U… | Base | Identity | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/hash 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… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/http-status-codes 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. | Base | Other | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/json-formatter 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/jwt-decoder Decode a JSON Web Token's header and payload to readable JSON. Pure decoding: signatures are NOT verified and no secret is needed. Claims like exp and iat are rendered as dates. Use this when an agent needs to decode he… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/llm-cost-calculator 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 … | Base | Inference | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/mime-types 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-Ty… | Base | Other | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/natural-date 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 … | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/number-base-converter 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–… | Base | Media | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/token-estimator 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 … | Base | Inference | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/url-encoder 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 U… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/url-parser 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 pr… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/useragent-parse 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… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/uuid 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 valida… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/finance/cagr-calculator 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, t… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/finance/iban-validator Validate an International Bank Account Number: country code, country-specific length and the ISO 7064 MOD 97-10 check digits — with the pretty-printed grouping returned when valid. Use this when an agent needs to struct… | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/finance/margin-calculator 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 … | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/finance/roi-calculator 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. | Base | Developer tools | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/live/business-days Count business days (Mon–Fri) between two dates, with weekend and holiday breakdown. Provide a country code and real public holidays (via Nager.Date) are excluded too. Use this when an agent needs to working days betwee… | Base | Other | $0.001 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/compound-interest-calculator 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 … | Base | Developer tools | $0.002 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/calculators/loan-payment-calculator Calculate the fixed monthly payment for a loan from its principal, annual interest rate and term in years, plus total repaid and total interest (annuity formula). Use this when an agent needs to monthly payment, total c… | Base | Developer tools | $0.002 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/crypto/price Live cryptocurrency prices from CoinGecko's public API: current price in USD/EUR/GBP/JPY plus 24-hour change for any coin by id or common ticker (btc, eth, sol…). Cached 60 seconds. Use this when an agent needs to live … | Base | Market data | $0.002 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/databases/countries 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… | Base | Other | $0.002 | 2026-10-02 |
https://agenttools-hub.vercel.app/api/v1/dev/api-health-check Probe a GET endpoint several times and report status codes and latency statistics (min/avg/max). The cheap way for an agent to verify an API — for example one found on the x402 Bazaar — responds before spending real mon… | Base | Developer tools | $0.002 | 2026-10-02 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.