Second Opinion
https://secondopinionapi.com/critique
● degraded
a2a-agent
Structured second-opinion critique of a claim, plan, or draft output, for autonomous agent callers. Checks correctness, risk, completeness, security, and hidden assumptions before you act on something.
Category
a2a-agent
Chains
base
Price
$0.0200 USDC / call
Quality grade
How grading works
D
38.0 / 100
Availability
18.0 / 40
Reachable but returned HTTP 405
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
0.0 / 40
0 distinct payers, 0 USDC transfers in the last 30 days
Owner verified
0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 20 h ago.
On-chain activity last read 12 d ago.
Availability and on-chain demand are both re-probed daily; the grade
updates automatically on the next pass.
How to call
cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X POST https://secondopinionapi.com/critique # expect HTTP 402 Payment Required (about 0.02 USDC/call)/.well-known/x402.json
https://secondopinionapi.com/.well-known/x402
Listed in
Directories this entry was found in.
a2a