agent402.tools
Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon, Sei · payout 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Answers HTTP 402
0 of 8 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-09-19
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)
2324 x402-style payments from 88 distinct payers, $45.65 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 2,324
- Outside payers
- 88
- USDC
- 45.65
All USDC received at this payout address: $45.66 (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 | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 600 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | 2324 x402-style payments from 88 distinct payers, $45.65 USDC in the last 7 days (Base, exact read) |
| Arbitrum | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Avalanche | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Celo | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Monad | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Optimism | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Polygon | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
| Sei | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
- Hosts
- agent402.tools
- Listings
- 4,821 registered in the x402 catalogue
- Price range
- $0.0010 to $2.00 per call, as registered
- Categories (auto)
- Developer tools (1096), Market data (840), Onchain data (704), Other (585), Inference (416), Web data (312), Media (248), Identity (224), Search (136), Agents (124), Security (120), Commerce (16)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xabf4fa…e2a9d0 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 · 4,821
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://agent402.tools/api/jsonl Convert between a JSON array and JSONL/NDJSON (one JSON object per line). mode: to-jsonl (array → lines) or from-jsonl (lines → array). For streaming records to and from agents and datasets. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/jwt-decode Decode a JWT without verification: header (algorithm), payload claims (subject, issuer, expiration), expiry status, and time remaining. (Decoding only - signatures are NOT verified.) | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/jwt-sign Mint a signed JSON Web Token (HMAC: HS256 default, HS384, HS512) from a payload + secret. Pairs with jwt-decode/jwt-verify to complete the trio. Deterministic - same payload, secret, and alg always produce the same toke… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/jwt-verify Verify an HS256/384/512 JWT signature against a secret and check expiry. Returns valid + decoded payload. (HMAC algorithms only.) | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/leap-year Check whether a year is a leap year and get related info: days in that year, the next and previous leap years, and the Gregorian leap-year rule. | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/levenshtein Levenshtein edit distance between two strings, plus a 0-1 similarity ratio. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/linear-regression Fit a least-squares line y = slope·x + intercept to two equal-length series. Returns slope, intercept, r² (variance explained), and optionally predicted y values for new x inputs - useful for trend extrapolation (e.g. p… | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/loan-payment Compute the monthly (or per-period) payment on a fully-amortizing loan: mortgage, auto, student loan, business loan. Returns the periodic payment, total paid over the term, and total interest. Matches Excel's PMT(rate, … | Base | Commerce | $0.001 | 2026-09-30 |
https://agent402.tools/api/lorem Placeholder text. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/markdown-to-html Render CommonMark + GFM markdown to HTML. | Base | Web data | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory Read from a wallet-scoped namespace. | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory/cas Atomically write (or release) a key only if its current value equals `expected` - the coordination primitive for distributed locks and optimistic concurrency across agents. Acquire a lock: expected=null + a value + ttlS… | Base | Agents | $0.001 | 2026-10-05 |
https://agent402.tools/api/memory/forget Delete a remembered document by id from the recall store. | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory/grants List the wallets you've granted access to your namespace, with their mode and expiry. | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory/incr Atomically increment (or decrement) a numeric key and return the new value - a coordination primitive for counters, locks, and rate budgets shared across agents. Creates the key at 0 if absent. | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory/log Tamper-evident history of every change to a namespace - an append-only, hash-chained audit log the server attests to (provenance an agent can't forge for itself). | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/memory/revoke Revoke a previously granted wallet's access to your namespace. | Base | Agents | $0.001 | 2026-09-30 |
https://agent402.tools/api/mime Look up a MIME type by file extension. | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/morse Encode text to Morse code or decode it back. mode: encode (default) or decode. Words separated by ' / '. | Base | Developer tools | $0.001 | 2026-10-03 |
https://agent402.tools/api/moving-average Compute simple (SMA) and exponential (EMA) moving averages over a numeric series. Returns one value per input position - the first (window-1) SMA values are null since there isn't enough history. EMA uses the standard a… | Base | Market data | $0.001 | 2026-09-30 |
https://agent402.tools/api/nft-metadata Resolve the metadata for a single NFT: title, description, image URLs (original + cached CDN), attributes/traits, and the standard (ERC-721 vs ERC-1155). Useful when you have a contract+tokenId and need the display data… | Base | Onchain data | $0.001 | 2026-09-30 |
https://agent402.tools/api/npv Compute the net present value of a stream of cashflows at a given discount rate. Index 0 is treated as t=0 (today, not discounted); indices 1..n are discounted by (1+rate)^t. Matches Excel's NPV but with the conventiona… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/number-format Format a number: thousands separators, fixed decimals, optional currency, or compact (1.2K / 3.4M). | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/onramp-link Generate a single-use Coinbase Onramp URL that lets a human fund any wallet with a card or Apple Pay - the fastest way to put real USDC into an agent's wallet. Returns the ready-to-open URL, and a fee-inclusive quote wh… | Base | Onchain data | $0.001 | 2026-10-03 |
https://agent402.tools/api/openapi-diff Compare two OpenAPI 3.x or Swagger 2.x documents and return a structured diff: added / removed / changed endpoints, with a conservative "is any change breaking?" flag. Breaking = an endpoint or required-2xx status was r… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-extract Flatten an OpenAPI 3.x or Swagger 2.x spec into a structured list of callable endpoints - one row per operation with method, path, operationId, summary, tags, parameters (name / in / required / type), JSON-body flag, an… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-mock-response Synthesize a JSON response body for one operation + status code in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path. Pick the response by explicit `status`, else the first 2xx, else… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-redact Shrink an OpenAPI 3.x or Swagger 2.x document for LLM context by stripping verbose meta-fields (examples, descriptions, summaries, tags, externalDocs, deprecated). Categories are explicit; default is `["examples", "desc… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-resolve-refs Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstream tools see a self-contained spec. Resolves `#/components/...` (OpenAPI) and `#/definitions/...` (Swagger) JSON-pointer refs anywhere in th… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-search Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-security-summary Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do… | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/openapi-validate-payload Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` … | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/outliers Flag outliers in a numeric series using either the IQR rule (Tukey fences at 1.5·IQR - robust, default) or z-score (|z| > threshold - assumes normality). Returns the outlier values + their indices + the thresholds used … | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/password Generate cryptographically random passwords. | Base | Other | $0.001 | 2026-10-05 |
https://agent402.tools/api/password-strength Score a password's strength: character-set size, entropy bits, a 0–4 rating, and an estimated offline crack time. The password is never stored or logged. | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/pdf-info Inspect a PDF without downloading the whole thing into your model: page count, title, author, subject, creator, producer, creation/modification dates, encryption flag, and byte size. Body: {"url":"https://…/file.pdf"}. | Base | Media | $0.001 | 2026-09-30 |
https://agent402.tools/api/percentage Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b). | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/perp-klines OHLCV candles for one perpetual at any interval from 1 minute to 1 month, up to the venue's history, with a window summary of open, close, change, high, low and volume. Use it when an agent needs price history for a cha… | Base | Market data | $0.001 | 2026-09-30 |
https://agent402.tools/api/perp-open-interest Open interest for one perpetual in coins and USD notional with its share of the venue total, or the top N contracts ranked by open interest plus the venue total. Use it when an agent needs positioning size for a market … | Base | Market data | $0.001 | 2026-09-30 |
https://agent402.tools/api/place-search Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region. | Base | Search | $0.001 | 2026-09-30 |
https://agent402.tools/api/price-coingecko Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...… | Base | Market data | $0.001 | 2026-09-30 |
https://agent402.tools/api/public-holidays Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info. | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/qr Generate a QR code PNG from any text or URL. | Base | Media | $0.001 | 2026-10-05 |
https://agent402.tools/api/querystring Parse a URL query string into an object, or build one from an object. mode: parse (default) | build. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/random Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes… | Base | Developer tools | $0.001 | 2026-10-05 |
https://agent402.tools/api/readability Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/readability-score Compute Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog Index, and Automated Readability Index from text. Returns all 4 scores plus word, sentence, and syllable counts. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/regex Run a regular expression against text. Returns up to 100 matches with index and capture groups. Pattern ≤ 200 chars, text ≤ 10KB. | Base | Developer tools | $0.001 | 2026-09-30 |
https://agent402.tools/api/relative-time Format a timestamp as a human relative phrase ("3 hours ago", "in 2 days") versus now or a reference time. | Base | Other | $0.001 | 2026-09-30 |
https://agent402.tools/api/reverse-geocode Resolve a lat/lon to a structured postal address: road, house number, city, state, postcode, country (with ISO code). OpenStreetMap/Nominatim, no key. | Base | Other | $0.001 | 2026-09-30 |
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.