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centstream.wheat-math.workers.dev

https://centstream.wheat-math.workers.dev/v1/crypto/price
● healthy x402
Category
x402
Chains
base
Price
$0.0500–$1.0000 USDC

Quality grade

How grading works
A 71.0 / 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 12.1 / 35
25 distinct payers, 103 USDC transfers in the last 30 days; the wallet is shared by 3 listings, so each is credited 1/3
Performance 9.9 / 10
Last probe answered in 217 ms (full marks at 200 ms or less)
Readiness 14.0 / 15
Agent readiness 93/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 19 h ago. On-chain activity last read 2 d 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 A, 71.0/100), 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 (217 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 3/3 probes succeeded; final after 5 probes in 30 days.
Resource declaration 10/10 Declares 18 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 (217 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 48% of peers
This listing 217 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

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

GET https://centstream.wheat-math.workers.dev/v1/crypto/price $0.0500 / call

Crypto prices (CoinGecko, Binance fallback). Cache 60s.

GET https://centstream.wheat-math.workers.dev/v1/gas $0.0500 / call

Current gas price via public RPCs (two sources, auto-fallback). Cache 15s.

GET https://centstream.wheat-math.workers.dev/v1/fiat/rates $0.0500 / call

Fiat FX rates, ECB reference rates via frankfurter.app. Cache 1h.

GET https://centstream.wheat-math.workers.dev/v1/weather $0.0500 / call

Current weather by coordinates (open-meteo, no key). Cache 10min.

GET https://centstream.wheat-math.workers.dev/v1/ipinfo $0.0500 / call

Geolocation of the caller's IP from Cloudflare request data. Zero upstream calls.

GET https://centstream.wheat-math.workers.dev/v1/qr $0.0500 / call

QR code as SVG, generated in-worker (pure JS, no external service).

GET https://centstream.wheat-math.workers.dev/v1/meta $0.0500 / call

OpenGraph / meta tags of a web page (fetch + parse). Cache 5min.

GET https://centstream.wheat-math.workers.dev/v1/dns $0.0500 / call

DNS records via DoH (Cloudflare primary, Google fallback). Cache 60s.

GET https://centstream.wheat-math.workers.dev/v1/wiki $0.0500 / call

Wikipedia article summary, 300+ languages (REST, action-API fallback). Cache 1h.

GET https://centstream.wheat-math.workers.dev/v1/dict $0.0500 / call

English dictionary entry: definitions, examples, synonyms. Cache 24h.

GET https://centstream.wheat-math.workers.dev/v1/holidays $0.0500 / call

Public holidays by country and year (110+ countries). Cache 24h.

GET https://centstream.wheat-math.workers.dev/v1/news $0.0500 / call

News via RSS: bbc, guardian, npr, techcrunch, theverge — or any custom https feed. Cache 5min.

GET https://centstream.wheat-math.workers.dev/v1/rand $0.0500 / call

Cryptographic randomness in-worker: uuid v4, hex tokens, PINs, random ints.

GET https://centstream.wheat-math.workers.dev/v1/convert $0.0500 / call

Unit conversion in-worker: length, mass, data, speed, temperature.

GET https://centstream.wheat-math.workers.dev/v1/time $0.0500 / call

Current time in any IANA timezone (Intl in-worker): ISO, offset, weekday.

GET https://centstream.wheat-math.workers.dev/v1/hash $0.0500 / call

Hash of text in-worker: SHA-1/256/384/512, hex or base64.

POST https://centstream.wheat-math.workers.dev/v1/batch/s5 $0.2500 / call

Batch: up to 5 lookups in ONE paid call ($0.25 total) — one signature, one round trip.

POST https://centstream.wheat-math.workers.dev/v1/batch/s20 $1.0000 / call

Batch: up to 20 lookups in ONE paid call ($1.00 total) — best value for agents.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://centstream.wheat-math.workers.dev/v1/crypto/price  # expect HTTP 402 Payment Required (about 0.05 USDC/call)
/.well-known/x402.json
https://centstream.wheat-math.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

x402 since 2026-11-10