B

Face Search — MPP Grade B

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On-chain Activity

8 Total txs
0 7d txs
$0.00 7d volume
$3.20 Total volume
2 Unique payers
0 Unique clients
7-day activity ▁▁▁▁▁▁▁

Compliance Checks

All paid ops declare 402 response MUST 10pt
All x-payment-info valid MUST 10pt
Challenge has Cache-Control: no-store MUST 5pt
Challenge digest on POST SHOULD 3pt
Challenge has expires SHOULD 3pt
Challenge has Problem Details SHOULD 2pt
Challenge has required params MUST 5pt
Challenge has WWW-Authenticate MUST 5pt
Challenge returns 402 MUST 10pt
Correct Content-Type MUST 5pt
Has Cache-Control on discovery SHOULD 5pt
Has input schemas SHOULD 5pt
Has llms.txt SHOULD 5pt
Has /openapi.json at root MUST 10pt
Has required top-level fields MUST 10pt
Served over HTTPS MUST 10pt
Uses standard categories SHOULD 2pt
1 issue
  • POST endpoint challenge missing digest parameter (SHOULD per spec)

Paid Operations (1)

POST /api/face-search dynamic
Search for a person by face photo and return the most probable identity
Amount
map[amount:0.400000 currency:USD mode:fixed]
Currency
-
Method
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: map[amount:0.400000 currency:USD mode:fixed] protocols: [map[x402:map[]] map[mpp:map[currency: intent: method:]]]

Input Schema

FieldTypeRequiredDescription
filename string No Optional filename for the image (default: "face.jpg")
image string Yes Base64-encoded image data (JPEG, PNG, or WebP)

Response Schema (200)

FieldTypeDescription
bestMatch Highest-scoring match overall, or null
bestProfile Highest-scoring match from a social/professional profile, or null
matches array[object] Top 20 matches (score >= 55), profiles first then by score
totalRawMatches integer Total raw matches before filtering

Payment Methods

Methods
tempo (from challenge)
Intents
charge (from challenge)
Currencies (discovery)
-
Currency (challenge)
USDC.e on Tempo Mainnet Presto (Tempo Mainnet Presto)
Multiple Challenges
No

Recipients

  • 0xD57DAB088C7F3836c0Df5A5EF445beF26D12D764
Per-endpoint breakdown
POST /api/face-search
0xD57DAB088C7F3836c0Df5A5EF445beF26D12D764

Security

TLS Version
TLSv1.3
Challenge ID Unique
Yes
Challenge ID Length
43
Digest Binding
-

Uptime

Discovery
Reachable (394ms)
Challenge
Reachable (389ms)
Last Checked

Schema Completeness

Paid Operations
1
With Input Schema
1
With Description
1

Documentation

Homepage
-
API Reference
-
llms.txt
-

Discovery

OpenAPI URL
https://face-search-mpp-production.up.railway.app/openapi.json
OpenAPI Version
3.1.0
Service Version
2.0.0
Document Size
5162 bytes
Document Hash
bad8665bd597b01ec71a42bd15f763fc961dc27e9edea79e12f90244cae8bbee

Version History (28 snapshots)

Scan snapshots
Date Grade Score Response Status
2026-04-06 B 76% 521ms Up
2026-04-07 B 76% 393ms Up
2026-04-08 B 76% 391ms Up
2026-04-09 B 76% 381ms Up
2026-04-10 B 76% 427ms Up
2026-04-11 B 76% 427ms Up
2026-04-12 B 76% 486ms Up
2026-04-13 B 76% 401ms Up
2026-04-14 B 76% 404ms Up
2026-04-15 B 76% 383ms Up
2026-04-16 B 76% 386ms Up
2026-04-17 B 76% 408ms Up
2026-04-18 B 76% 445ms Up
2026-04-19 B 76% 391ms Up
2026-04-20 B 76% 434ms Up
2026-04-21 B 76% 385ms Up
2026-04-22 B 76% 417ms Up
2026-04-23 B 76% 390ms Up
2026-04-24 B 76% 480ms Up
2026-04-25 B 76% 412ms Up
2026-04-26 B 76% 404ms Up
2026-04-27 B 76% 447ms Up
2026-04-28 B 76% 464ms Up
2026-04-29 B 76% 388ms Up
2026-04-30 B 76% 382ms Up
2026-05-01 B 76% 378ms Up
2026-05-02 B 76% 383ms Up
2026-05-03 B 76% 526ms Up