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horizonpulse.dev

https://horizonpulse.dev/
● healthy general

Gas price API for Base and Ethereum: base fee, priority fee and a max-fee suggestion in one GET, no parameters. Returns JSON per network: baseFeeGwei, priorityFeeGwei (p50, with p10/p90), suggestedMaxFeeGwei (2x base + priority), timingHint (cheap/normal/expensive vs the last 20 blocks) and simpleTransfer cost in ETH and USD, plus ethUsd. From eth_feeHistory with eth_gasPrice fallback. Descript...

Category
general
Chains
eip155:137, eip155:8453, solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp, xrpl:0
Price
$0.0020–$0.0500 USDC

Quality grade

How grading works
A 77.9 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 200)
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 20.5 / 35
45 distinct payers, 402 USDC transfers in the last 30 days
Performance 9.8 / 10
Last probe answered in 243 ms (full marks at 200 ms or less)
Readiness 12.6 / 15
Agent readiness 84/100
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

B · 84/100

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, 77.9/100), 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 20/25 Endpoint reachable; its 402 challenge was seen earlier (243 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 32/32 probes succeeded over 30 days (100%).
Resource declaration 8/10 49 paid resources; 49 sampled lack a description.
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 (243 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, bazaar_feed, catalog_listing. 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 67% of peers
This listing 84 · peer median 78
Latency
Faster than 43% of peers
This listing 243 ms · peer median 205 ms

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

  • Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
    Now: Endpoint reachable; its 402 challenge was seen earlier (243 ms).
  • 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.
  • Resource declaration −2 — Declare each paid resource with its input and output schema.
    Now: 49 paid resources; 49 sampled lack a description.

How many agent tools actually work · All statistics

Paid endpoints

49 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://horizonpulse.dev/api/pulse
https://horizonpulse.dev/api/signals
https://horizonpulse.dev/api/yield
https://horizonpulse.dev/api/portfolio
https://horizonpulse.dev/api/gas
https://horizonpulse.dev/api/funding
https://horizonpulse.dev/api/fetch
https://horizonpulse.dev/api/http
https://horizonpulse.dev/api/extract
https://horizonpulse.dev/api/x402-check
https://horizonpulse.dev/api/x402-check/deep
https://horizonpulse.dev/api/bazaar-check
https://horizonpulse.dev/api/market/search
https://horizonpulse.dev/api/market/quote
https://horizonpulse.dev/api/tx-status
https://horizonpulse.dev/api/tokenized-stock
https://horizonpulse.dev/api/watch
https://horizonpulse.dev/api/balance
https://horizonpulse.dev/api/tx-guard
https://horizonpulse.dev/api/grocery/normalize
https://horizonpulse.dev/api/grocery/ingredient
https://horizonpulse.dev/api/chain/head
https://horizonpulse.dev/api/token/meta
https://horizonpulse.dev/api/name/resolve
https://horizonpulse.dev/api/batch
https://horizonpulse.dev/api/discourse/split
https://horizonpulse.dev/api/search
https://horizonpulse.dev/api/pdf
https://horizonpulse.dev/api/research/report/brief
https://horizonpulse.dev/api/seller-dd/single
https://horizonpulse.dev/api/sec/company-facts
https://horizonpulse.dev/api/funding-report
https://horizonpulse.dev/api/domain/precheck
https://horizonpulse.dev/api/sec/filings
https://horizonpulse.dev/api/treasury/debt
https://horizonpulse.dev/api/text/pii-scan
https://horizonpulse.dev/api/pros/verify
https://horizonpulse.dev/api/sec/insider
https://horizonpulse.dev/api/domain/whois
https://horizonpulse.dev/api/domain/ssl
https://horizonpulse.dev/api/domain/trust
https://horizonpulse.dev/api/sec/13f
https://horizonpulse.dev/api/sec/10k-risk
https://horizonpulse.dev/api/weather/alerts
https://horizonpulse.dev/api/bls/cpi
https://horizonpulse.dev/api/bls/jobs
https://horizonpulse.dev/api/treasury/yield-curve
https://horizonpulse.dev/api/email/check
https://horizonpulse.dev/api/vuln/check

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://horizonpulse.dev/  # expect HTTP 402 Payment Required (about $0.002/call)
/.well-known/x402.json
https://horizonpulse.dev/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-09-20 x402scan since 2026-09-29 pay-skills-pr since 2026-10-10 x402 since 2026-10-11 mcp since 2026-10-12