Lookproof
lookproof.dev · pricing, x402 grade, how to pay and alternatives
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Mail, DNS and web checks for developers and agents: SPF, DMARC, DKIM, MTA-STS, DNSSEC, TLS certificates, security headers and RDAP, with findings that explain each result.
Lookproof pricing
- Price per call in its 402
- $0.03 on Base
- USDC, read from the unpaid 402 at our last check
- Listed price
- $0.01–$0.03
- A range: different routes or inputs cost different amounts
- Price history (tracked since Oct 31, 2026)
- No change yet
- Oct 31, 2026: $0.03 on Base
- How you pay
- Per call, x402
- Base; no account or API key
Prices come from the 402 payment request of the endpoint we check; other routes may be priced differently. Check the provider before paying.
Lookproof x402 gradeB · 85/100
- x402 grade
- B (85/100)
- From x402fix, our free unpaid check of its 402, Nov 9, 2026, 6:00 PM ET. Grades the payment request, not uptime
- Valid x402 payment request
- Yes
- At the last check · x402 v2
- Networks listed
- Base
- Token: USDC
Lookproof statusUp
Answered our last check on Nov 9, 2026, 11:40 AM ET. Uptime (checks so far): 100% (14 of 14 daily checks up).
Top 5 Lookproof alternatives
The 5 highest-ranked listings in the same category, by x402 grade, then uptime from our own daily checks, then x402 score and response time. Paid placement never changes this order.
- Toolrail statusalternatives
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Valid x402
- 100%
- Price in 402
- $0.002
- Response
- 252 ms
- NetIntel statusalternatives
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Valid x402
- 100%
- Price in 402
- $0.002
- Response
- 259 ms
- corpusAI statusalternatives
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Valid x402
- 100%
- Price in 402
- $3.00
- Response
- 369 ms
- StableUpload statusalternatives
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Valid x402
- 100%
- Price in 402
- $2.00
- Response
- 391 ms
- ExecBox statusalternatives
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Valid x402
- 100%
- Price in 402
- $0.002
- Response
- 392 ms
Prices are what each endpoint’s 402 asked for at our last check. Check the provider before paying.
Compare all 15 Lookproof alternatives side by side · Status of every listing in this category · x402 API status, all categories
Lookproof FAQ
How much does Lookproof cost per call?
Its 402 payment request asked for $0.03 in USDC on Base for the endpoint we check; the listed price is $0.01–$0.03. Other routes may cost more or less. You pay per call with x402, with no account or API key.
What is Lookproof's x402 grade?
B, with a score of 85/100 at our last grading on Nov 9, 2026, 6:00 PM ET. The grade comes from x402fix, our free unpaid check of the 402 payment request on the endpoint we monitor (format, networks and price fields). It grades the payment request, not uptime or the quality of the data, and it is not an endorsement.
How do I pay for Lookproof?
Per call over x402: your client calls the endpoint, gets an HTTP 402 with the price, signs a USDC payment on Base and repeats the call with the payment header. No account, subscription or API key is needed.
Is Lookproof working right now?
Yes, it answered our last check on Nov 9, 2026, 11:40 AM ET. Its status page has the 30-day timeline, outages and response times.
How do you check Lookproof?
Once a day we send one unpaid request to its example endpoint (GET) and record whether it answers, whether the answer is a valid x402 402 payment request, the price it asks for and the response time. We never pay and never send a payment header. It is a technical check, not an endorsement.
Own Lookproof? Get alerts when it breaks.
We already check this endpoint every day. Leave your email and we’ll tell you when alerts for owners open (down, invalid 402 or price change). Free to register interest, no payment asked.
Data as of Nov 10, 2026, 7:08 AM ET. How we measure: one unpaid request per day to the listing’s example endpoint. Up means any answer below HTTP 500 except 404/410 within 8 seconds. We never pay and never send a payment header, and payment never changes these numbers. A technical check, not an endorsement. Raw JSON
Crypto payment details
- Payment protocol
- x402
- Networks
- Base
- Tokens
- USDC
- Price per call (our 402 probe)
- $0.01–$0.03 per call (check the provider for current pricing)
- Example paid endpoint
https://api.lookproof.dev/v1/mail/check- Also listed on
- Agentic.Market, public listing
- More tools on
- Base
How we verified it
Unpaid GET /v1/mail/check returned HTTP 402 on 2026-10-27 with x402 payment terms: x402 v2, exact, 0.03 USDC on Base. Price checked via our 402 probe on 2026-10-27 (3 routes probed; other routes may be priced differently). Official site fetched (HTTP 200) on 2026-10-27. Shown on the public Agentic.Market site. Last checked 2026-10-27.
The description summarizes the provider's own site. YourAITools is not affiliated with Lookproof. Listing a tool is not an endorsement: check pricing and terms with the provider before paying.
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