com.402oracle/402oracle — agent-tools.cloud

skills: {'id': 'verify_business', 'name': 'verify_business', 'description': 'Verify a business or domain is real and established before your agent pays an invoice, onboards a vendor, or trusts it. Checks RDAP registration age, DNS (A/MX/NS), email posture (SPF/DMARC), and HTTPS reachability, and returns a signed attestation with a 0-100 trust score and evidence URLs. Free tier is unsigned and rate-limited; the paid HTTP endpoint POST /verify/business ($0.05 USDC via x402) returns a cryptographically signed attestation suitable for audit trails.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'verify_price', 'name': 'verify_price', 'description': "Confirm a crypto asset's price before your agent trades, quotes, or settles on it. Cross-checks Coinbase, Kraken, and OKX for a median and flags divergence when sources disagree. Returns a signed attestation. Free tier is unsigned and rate-limited; the paid HTTP endpoint POST /verify/price ($0.02 USDC via x402) returns a cryptographically signed attestation suitable for audit trails.", 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'verify_freshness', 'name': 'verify_freshness', 'description': 'Check that a URL is live and current before your agent acts on its contents. Returns HTTP status, Last-Modified/ETag, a content SHA-256, and whether it changed versus a prior hash. Returns a signed attestation. Free tier is unsigned and rate-limited; the paid HTTP endpoint POST /verify/freshness ($0.02 USDC via x402) returns a cryptographically signed attestation suitable for audit trails.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'verify_claim', 'name': 'verify_claim', 'description': 'Fact-check a single factual claim against web evidence before your agent relies on it. Returns a verdict (supported / contradicted / insufficient), a confidence score, and citations, as a signed attestation. Free tier is unsigned and rate-limited; the paid HTTP endpoint POST /verify/claim ($0.25 USDC via x402) returns a cryptographically signed attestation suitable for audit trails.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}; uptime_30d 1.0%; p95 100.3ms; conformance: pass

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

A 72.2 / 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 15.0 / 35

16 distinct payers, 74 USDC transfers in the last 30 days

Performance 10.0 / 10

Last probe answered in 140 ms (full marks at 200 ms or less)

Readiness 12.2 / 15

Agent readiness 81/100

Owner verified 0.0 / 5

Nobody has claimed this listing yet

Endpoint last checked 19 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 · 81/100

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, 72.2/100), 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 (140 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 5 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	1/5	not seen in a source for over 30 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 (140 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, 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 60% of peers; This listing 81 · peer median 78
Latency: Faster than 72% of peers; This listing 140 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 (140 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.
Freshness + modern flags −4 — Keep the listing current in the registry or source it comes from.
Now: not seen in a source for over 30 days; declares x402.

How many agent tools actually work · All statistics

Paid endpoints

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

POST https://402oracle.com/verify/business

Is this company or domain legit? Business and domain verification (KYB) for vendor screening, supplier checks and scam or fraud review: domain age and registrar from RDAP, DNS (A/MX/NS), email security (SPF/DMARC) and HTTPS. Returns a verdict and a 0-100 trust score with evidence URLs, and flags new

POST https://402oracle.com/verify/price

Crypto price check: the current spot price of Bitcoin (BTC), Ethereum (ETH), Solana (SOL) or any token ticker in USD, cross-checked across five exchanges (Coinbase, Kraken, OKX, Binance, CoinGecko). Returns the median price, the spread between venues and a divergence flag, as a signed price oracle a

POST https://402oracle.com/verify/freshness

Website uptime and change check: is this URL up right now, and has the page changed? Fetches the URL and returns the HTTP status, Last-Modified and ETag headers, a SHA-256 fingerprint of the content, and whether it changed versus a hash you pass in. Use it to check a site is live, detect stale data,

POST https://402oracle.com/verify/claim

Is this claim true? Fact-check a single factual claim or statement against live web evidence before your agent relies on it. A fact-checking oracle, hallucination guard, and grounding and citation check for misinformation review: returns a verdict (supported / contradicted / insufficient), a confide

POST https://402oracle.com/verify/business/batch

Bulk domain and company check: domain age, registrar and legitimacy for up to 5 business domains in one call. Screen a prospect or lead list, qualify companies before outreach, check vendor and supplier lists, or clear invoice batches. Same checks as /verify/business per domain (RDAP domain age, DNS

How to call

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

curl -sS -i -X GET https://402oracle.com/mcp  # expect HTTP 402 Payment Required (about 0.02 USDC/call)

MCP endpoint

https://402oracle.com/mcp

/.well-known/x402.json

https://402oracle.com/.well-known/x402

Listed in

Directories this entry was found in.

mcp since 2026-07-15 x402scan since 2026-09-13 a2a since 2026-10-08 x402 since 2026-10-08