pulsefeed.dev — agent-tools.cloud

Is this x402 endpoint safe to pay? Vet an unknown seller BEFORE paying: pay/avoid verdict, 0-100 trust score, live 402 probe, scam flags (payTo hijack, bait-and-switch pricing, honeypot, wrong asset) and an on-chain check of the receiver on Base. Reads x402 v1 (body) AND v2 (PAYMENT-REQUIRED header) — body-only checkers call live v2 services dead. ?endpoint=url; omit for a trust-ranked catalog.

Paid verification

How it works

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+ 69.2 / 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 13.3 / 35

17 distinct payers, 173 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2

Performance 7.9 / 10

Last probe answered in 577 ms (full marks at 200 ms or less)

Readiness 13.0 / 15

Agent readiness 87/100

Owner verified 0.0 / 5

Nobody has claimed this listing yet

Endpoint last checked 18 h ago. On-chain activity last read 3 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 · 87/100

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+, 69.2/100), 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 (577 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	10/10	Declares 9 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 (577 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 75% of peers; This listing 87 · peer median 78
Latency: Faster than 14% of peers; This listing 577 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 (577 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.

How many agent tools actually work · All statistics

Paid endpoints

9 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://pulsefeed.dev/pulse?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Live token pulse on Base: transfer activity, unique senders/receivers, volume over a block window. Answers 'is this token active right now?'

GET https://pulsefeed.dev/whales?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&min=250000

Whale alerts on Base: large token transfers over a block window (from/to/amount/tx), with configurable threshold. Answers 'are whales moving this token now?'

GET https://pulsefeed.dev/flow?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Accumulation/distribution on Base: which addresses are net-accumulating vs net-distributing a token over a block window (smart-money flow). Answers 'who is buying/dumping this token now?'

GET https://pulsefeed.dev/trust

Trust & safety oracle for x402 services: before an agent pays an unknown endpoint, check if it is live, returns a valid x402 challenge, its reputation/uptime, run a scam/anomaly scan (payTo hijack, price bait-and-switch, honeypot/zero payTo, non-USDC asset, network mismatch), AND on-chain-verify the

GET https://pulsefeed.dev/momentum?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Token momentum on Base: transfer activity and volume of the current block window versus the previous one, with % change. Answers 'is this token heating up or cooling down right now?'

GET https://pulsefeed.dev/trust/history?endpoint=<url>

x402 endpoint track record over time: uptime %, chronology of payTo (receiver) and price changes, trend — unique compounding data from continuous independent audit.

GET https://pulsefeed.dev/trust/dataset

Bulk x402 trust dataset in one call: up to 5,000 live services' full trust profiles — trustScore/verdict, scam flags, receiver stability, on-chain profile + compounding payTo/price history. Free preview: /status.json (dataset).

GET https://pulsefeed.dev/data/full

PulseFeed Data API — the cross-domain trust dataset: the top 5,000 live x402 services by trust score (moat profile) + every audited npm MCP server (full audit profile) + ecosystem aggregates + live security incidents with on-chain proof, in ONE call. Free sample: /data/sample. Free schema/coverage:

GET https://pulsefeed.dev/mcp/drift/history

The full MCP supply-chain drift series since 2026-07-30 in one call: ownership swapped, install script added in a later version, repository removed, package unpublished, a removed name republished by someone else. Windows of up to 7 days are free.

How to call

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

curl -sS -i -X GET https://pulsefeed.dev  # expect HTTP 402 Payment Required (about $0.004/call)

/.well-known/x402.json

https://pulsefeed.dev/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-07-06 paygent-discover since 2026-07-06 awesome-x402 since 2026-07-26 mcp since 2026-07-31 a2a since 2026-09-23 x402 since 2026-10-08