Endpoint · extractionPOSTx402meta.hergertsynthora.com /service
x402 preflight / reputation — verify BEFORE you pay.
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x402 preflight / reputation — verify BEFORE you pay. Give it an x402 endpoint_url (or a payTo address) and it returns, in one cheap deterministic call: is the resource reachable, is it present in the CDP Bazaar discovery catalog (serviceName, declared payTo, price, network, tags, last_seen), and — the key integrity check — does the payTo the endpoint actually demands in its live HTTP 402 challenge MATCH the payTo the catalog advertises (payTo_match). It runs a keyless HEAD/OPTIONS/402 probe that never moves funds, extracts the real payTo/amount/asset/network from the challenge, scores listing freshness, and — if you pass a prev snapshot {payTo,amount,lastUpdated} — flags whether the endpoint changed since you last saw it (anti-rug). Output is a 0-100 scorecard + letter grade + reason codes + an actionable verdict (pay_ok / caution / do_not_pay). For any router, wallet agent or M2M client that pays third-party x402 endpoints and needs to avoid paying a hijacked, dead, or repriced resource. Deterministic, no LLM, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://x402meta.hergertsynthora.com/service
Seen
first 21 days ago · last 7 days ago
33 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.560 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.440: 0.106 uncertain ? + 0.333 short ? · 0.090 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.78 | 0.601 | 0.360 | −0.133 | −0.106 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.560 | gap to 1.000 = 0.440 · 0.333 short · 0.106 uncertain | 0.560 | −0.333 | −0.106 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.601 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.560 → UNRATED: 32 of 30 paid calls weights 2026.09.6 · 32 samples · seed cap_01M2CMPDEF6F4BE16QG6PVX1CS|2026-09-01T06:50:14.372Z|2026.09.6
Verify it yourself
npx teppi-check https://x402meta.hergertsynthora.com/servicecurl -s https://api.teppi.xyz/v1/trust/cap_01M2CMPDEF6F4BE16QG6PVX1CS