semantic-search

Semantic search across the entire monitored x402 catalog.

Semantic search across the entire monitored x402 catalog. Given a free-text query (e.g. "weather forecast", "image generation", "EVM gas price oracle"), returns the closest endpoints by advertised purpose. Ranking is deterministic: cosine similarity bucketed to whole percentage points first (80.3% and 80.5% are the same bucket), then trust score, then described-before-undescribed, then endpoint id. Matches below a 0.5 cosine-similarity floor are dropped entirely, so a query can return fewer than the requested limit (or none). Endpoints that advertise no description are still matched: they are embedded from their service name and URL path tokens instead of a written description (host name as a last resort). The exact effect of a missing description: no fixed point deduction and no direct similarity malus; the only deterministic penalty is the described-before-undescribed tiebreak (at equal similarity bucket AND equal trust score, a described endpoint ranks first). Beyond that it is purely indirect: the shorter fallback text typically yields lower cosine similarity than a prose description, so such endpoints tend to land in lower similarity buckets, by a query-dependent amount. Each match carries its resource URL, trust score, grade, cosine similarity (0-1, raw value; ranking buckets it), advertised description when present, and a free endpoint-page URL. Matches also carry the advertised price as machine-readable fields: amountUsd (null when not advertised) and priceCeiling (true when the endpoint uses the x402 'upto' scheme, i.e. amountUsd is an authorization ceiling and the real charge is typically lower). This is a DISCOVERY product: it deliberately carries no verdict, recommendation or flag detail (the per-endpoint trust report sold at /v1/x402-trust carries those). The query is embedded with the same model as the catalog, so phrasing the capability you need works better than guessing keywords.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.001 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xbbecbe90…b8c89285

URL

https://x402.fuchss.app/v1/semantic-search

Seen

first 35 days ago · last 21 days ago

41 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.3

UN
RATED

0.684 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.316: 0.100 uncertain ? + 0.215 short ? · 0.116 to B

How the composite of 0.684 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	0.97	0.807		0.484	−0.015	−0.100
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.684	gap to 1.000 = 0.316 · 0.215 short · 0.100 uncertain	0.684	−0.215	−0.100

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.807   liveness       
+ 0.200 × 1.000   price stability
= 0.684           → UNRATED: 39 of 30 paid calls      weights 2026.09.3 · 39 samples · seed cap_01M1A59NNAN54K1BFJ0VG6RSRA|2026-08-20T10:05:33.863Z|2026.09.3

Verify it yourselfnpx teppi-check https://x402.fuchss.app/v1/semantic-searchcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59NNAN54K1BFJ0VG6RSRA