C

Surf Web

https://web.surf.cascade.fyi 69% (73/105)
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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
2 issues
  • 402 response missing Cache-Control: no-store
  • POST endpoint challenge missing digest parameter (SHOULD per spec)

Paid Operations (2)

POST /v1/crawl dynamic
Crawl web pages and extract content

Extracts content from web pages as markdown, HTML, or text. Single URL returns an object, multiple URLs return an array. Supports CSS selectors and proxy for blocked sites.

Amount
0.002
Currency
-
Method
x402, mpp
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: 0.002 pricingMode: fixed protocols: [x402 mpp]

Input Schema

{
  "$ref": "#/components/schemas/CrawlBody"
}

Response Schema (200)

{
  "$ref": "#/components/schemas/CrawlResult"
}
POST /v1/search dynamic
Web search

Search the web using Exa. Returns titles, URLs, and snippets.

Amount
0.01
Currency
-
Method
x402, mpp
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: 0.01 pricingMode: fixed protocols: [x402 mpp]

Input Schema

{
  "$ref": "#/components/schemas/SearchBody"
}

Response Schema (200)

{
  "$ref": "#/components/schemas/SearchResponse"
}

Payment Methods

Methods
tempo (from challenge)
Intents
charge, session (from challenge)
Currencies (discovery)
-
Currency (challenge)
USDC.e on Tempo (Tempo)
Multiple Challenges
Yes

Recipients

  • 0x2BB201f1bb056eb738718BD7A3ad1BEF24b883bb
Per-endpoint breakdown
POST /v1/crawl
0x2BB201f1bb056eb738718BD7A3ad1BEF24b883bb
POST /v1/search
0x2BB201f1bb056eb738718BD7A3ad1BEF24b883bb

Security

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

Uptime

Discovery
Reachable (71ms)
Challenge
Reachable (62ms)
Last Checked

Schema Completeness

Paid Operations
2
With Input Schema
2
With Description
2

Documentation

Homepage
-
API Reference
-
llms.txt
-

Discovery

OpenAPI URL
https://web.surf.cascade.fyi/openapi.json
OpenAPI Version
3.1.0
Service Version
1.0.0
Document Size
3820 bytes
Document Hash
c827e29f01f5b66e69544f1a4815d7c8c905a916fd0ed0a767fa4773802d6d40

Version History (2 snapshots)

Scan snapshots
Date Grade Score Response Status
2026-04-06 C 69% 217ms Up
2026-04-07 C 69% 65ms Up