# surf.cascade.fyi — search and data APIs — 1 of 5

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> Probe-verified (tier 2 of 3). Last checked 2026-09-26. 1 of 5 capability checks passed. 2 unknown.

- host: surf.cascade.fyi
- url: https://surf.cascade.fyi/
- category: search and data APIs
- type: saas
- language: en

## Probe-verified · tier 2 of 3

Probed live on 2026-09-26 against rubric v1.2. 1 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- FAIL — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- PASS — MCP server card answers (`/.well-known/mcp/server-card.json → tools/list`)

MCP tools (from tools/list on 2026-09-26): glim_twitter_search, glim_twitter_get, glim_reddit_search, glim_reddit_get, glim_web_search, glim_web_fetch, glim_github_search, glim_github_get, glim_amazon_search, glim_amazon_get, glim_youtube_get, glim_detect_ai, glim_telegram_search, glim_telegram_get

## Summary

API service providing live data endpoints from Twitter, Reddit, GitHub, Amazon, YouTube, and the open web with payment via USDC on Base, Solana, or Tempo networks, no API keys required.

## Context

105 sites in this index share the category "search and data APIs"; 20 are transactional.

## How we grade

- tier 1 — **Declared**: The site says agents are welcome in its robots.txt. A permission, not a capability.
- tier 2 — **Probe-verified** (this site): We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
- tier 3 — **Behaviourally verified**: An agent completed the action end to end — booked, bought, submitted — and it worked.

## About this record

Known Good probes sites live and publishes what was tested and when.
Method: https://knowngood.sh/about.md · Rubric: https://knowngood.sh/benchmark

How we found this site: probe discovery. This site didn't declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. [How we choose what to check, and how to opt out](https://knowngood.sh/bot)

## Where this sits

- saas: https://knowngood.sh/type/saas
- search and data APIs: https://knowngood.sh/category/search-data-apis
- Browse: https://knowngood.sh/browse
- Rubric: https://knowngood.sh/benchmark