koreakit.celee.workers.dev — agent-tools.cloud

Paid verification

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

B 63.5 / 100

Availability 20.0 / 20

Endpoint responded (HTTP 402)

Payability 15.0 / 15

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 6.5 / 35

5 distinct payers, 33 USDC transfers in the last 30 days; the wallet is shared by 3 listings, so each is credited 1/3

Performance 10.0 / 10

Last probe answered in 81 ms (full marks at 200 ms or less)

Readiness 12.0 / 15

Agent readiness 80/100

Owner verified 0.0 / 5

Nobody has claimed this listing yet

Endpoint last checked 19 h ago. On-chain activity last read 35 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

A · 93/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B, 63.5/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements	10/10	Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge	25/25	Paid endpoint answers with an HTTP 402 challenge (81 ms).
x402 version	n/a	x402 version not observed yet.
Signed descriptor	n/a	No x402 standard defines a signed descriptor.
Uptime (30 days)	15/15	2/2 probes succeeded; final after 5 probes in 30 days.
Resource declaration	10/10	Declares 10 paid resource(s).
Verified identity	5/10	Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags	5/5	seen in a source within 7 days; declares x402.
Security declaration	n/a	Payment is the access control for an x402 resource.

Applicable criteria total 75 points, scaled to 100.

Responsiveness: Responsive (81 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest. Qualifies the payment claim; adds no points.

Measured 2026-11-11.

Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness: Higher than 94% of peers; This listing 93 · peer median 78
Latency: Faster than 95% of peers; This listing 81 ms · peer median 205 ms

Where it loses the most points, and how to win them back

Verified identity −5 — Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

10 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

https://koreakit.celee.workers.dev/v1/holidays $0.0030 / call

South Korea public holidays for a year (2015-2050): 설날·추석 (lunar), 대체공휴일 substitute holidays, election days, temporary holidays, and the 2026 additions 노동절 (May 1) and 제헌절 (Jul 17). Korean and English names. KASI lunar data.

https://koreakit.celee.workers.dev/v1/holidays/check $0.0030 / call

Check whether a date is a South Korea public holiday, weekend, or business day (영업일), with holiday names. Includes 대체공휴일 and 2026 노동절·제헌절.

https://koreakit.celee.workers.dev/v1/business-days/add $0.0030 / call

Add or subtract N South Korea business days (영업일) to a date, skipping weekends and all Korean public holidays incl. substitute holidays. Use for payment due dates, delivery and contract deadlines.

https://koreakit.celee.workers.dev/v1/business-days/count $0.0030 / call

Count South Korea business days (영업일) between two dates, inclusive of both ends, excluding weekends and Korean public holidays.

https://koreakit.celee.workers.dev/v1/lunar/to-solar $0.0030 / call

Convert a Korean lunar calendar date (음력) to the Gregorian date (양력) with 간지 (sexagenary) names, KASI standard. For birthdays, 제사, traditional events.

https://koreakit.celee.workers.dev/v1/lunar/from-solar $0.0030 / call

Convert a Gregorian date (양력) to the Korean lunar calendar date (음력), leap-month flag and 간지 names, KASI standard.

https://koreakit.celee.workers.dev/v1/text/amount $0.0030 / call

Write a number as a Korean amount in words: spoken form, formal 일금…원정 contract form for invoices and contracts, and 갖은자 hanja (壹貳參). Up to 20 digits.

https://koreakit.celee.workers.dev/v1/text/josa $0.0030 / call

Choose the grammatically correct Korean particle (은/는, 이/가, 을/를, 과/와, 으로/로 …) for a word, number or acronym, based on its final consonant (받침). For templated Korean text generation.

https://koreakit.celee.workers.dev/v1/text/romanize $0.0030 / call

Romanize Korean (Hangul) text with the official Revised Romanization rules incl. sound changes (종로 jongno, 신라 silla). mode=name for personal names with common surname spellings (Kim, Lee, Park).

https://koreakit.celee.workers.dev/v1/validate/brn $0.0030 / call

Validate the checksum of a South Korea business registration number (사업자등록번호, 10 digits) and classify the entity type (individual, corporation HQ/branch, non-profit). Offline checksum only.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://koreakit.celee.workers.dev/v1/holidays  # expect HTTP 402 Payment Required (about 0.003 USDC/call)

/.well-known/x402.json

https://koreakit.celee.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

x402 since 2026-11-11