HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, Contact Screening, Stocks, Crypto, News

75 paid agent tools: website audits and research; BM25, MiniLM vector and hybrid discovery are free.

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+ 83.0 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 20.0 / 20

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

Demand 23.0 / 40

25 distinct payers, 1346 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 5 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 B+, 83.0/100), 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	20/25	Endpoint reachable; its 402 challenge was seen earlier (178 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	75 paid resources; 50 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 (178 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. Display only: search order uses the quality grade.

Compared with peers

Against 10,060 reachable x402 APIs in our daily snapshot (2026-11-12 01:39 UTC). Display only; it does not change search order.

Readiness: Higher than 67% of peers; This listing 84 · peer median 78
Latency: Faster than 58% of peers; This listing 178 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 (178 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: 75 paid resources; 50 sampled lack a description.

How many agent tools actually work · All statistics

Paid endpoints

75 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://hubvibe-io.com/audit/wcag

https://hubvibe-io.com/audit/seo

https://hubvibe-io.com/audit/security

https://hubvibe-io.com/audit/performance

https://hubvibe-io.com/audit/bundle

https://hubvibe-io.com/work/chain/network

https://hubvibe-io.com/work/chain/address

https://hubvibe-io.com/work/chain/transaction

https://hubvibe-io.com/work/market/quote

https://hubvibe-io.com/work/market/prediction

https://hubvibe-io.com/work/extract/page

https://hubvibe-io.com/work/llm/analyze

https://hubvibe-io.com/work/llm/extract

https://hubvibe-io.com/work/data/query

https://hubvibe-io.com/work/data/question

https://hubvibe-io.com/work/research/brief

https://hubvibe-io.com/work/research/page_facts

https://hubvibe-io.com/work/market/intel

https://hubvibe-io.com/work/search/web

https://hubvibe-io.com/work/llm/generate

https://hubvibe-io.com/work/code/execute

https://hubvibe-io.com/work/image/generate

https://hubvibe-io.com/work/speech/synthesize

https://hubvibe-io.com/work/speech/transcribe

https://hubvibe-io.com/work/data/forecast

https://hubvibe-io.com/work/data/anomalies

https://hubvibe-io.com/work/stats/probability

https://hubvibe-io.com/work/verify/claims

https://hubvibe-io.com/work/research/web

https://hubvibe-io.com/work/research/company

https://hubvibe-io.com/work/agent/task

https://hubvibe-io.com/work/agent/task_pro

https://hubvibe-io.com/work/agent/task_max

https://hubvibe-io.com/work/monitor/snapshot

https://hubvibe-io.com/work/monitor/check

https://hubvibe-io.com/work/commerce/availability

https://hubvibe-io.com/work/market/stock

https://hubvibe-io.com/work/market/fundamentals

https://hubvibe-io.com/work/market/insiders

https://hubvibe-io.com/work/finance/analytics

https://hubvibe-io.com/work/opendata/search

https://hubvibe-io.com/work/opendata/table

https://hubvibe-io.com/work/search/results

https://hubvibe-io.com/work/news/search

https://hubvibe-io.com/work/data/macro

https://hubvibe-io.com/work/email/verify

https://hubvibe-io.com/work/property/context

https://hubvibe-io.com/work/travel/flight_status

https://hubvibe-io.com/work/company/enrich

https://hubvibe-io.com/work/sanctions/screen

How to call

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

curl -sS -i -X GET https://hubvibe-io.com/audit/wcag  # expect HTTP 402 Payment Required (about 0.05 USDC/call)

MCP endpoint

https://hubvibe-io.com/mcp

/.well-known/x402.json

https://hubvibe-io.com/.well-known/x402

Listed in

Directories this entry was found in.

mcp since 2026-10-08 a2a since 2026-10-08 x402 since 2026-10-08