# mcp.replynodes.com — search and data APIs — 2 of 5

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

- host: mcp.replynodes.com
- url: https://mcp.replynodes.com/
- 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. 2 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- PASS — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- PASS — MCP endpoint answers tools/list (`initialize → tools/list, no credentials`) · on 26 Sep 2026
  - ABSENT — MCP server card (`/.well-known/mcp/server-card.json`): absent; not scored
  - Platform-supplied: no; not scored
- PASS — Other agent files at well-known paths (`agent-skills/index.json · oauth-authorization-server · oauth-protected-resource · http-message-signatures-directory`): found: OAuth protected resource metadata; not scored

MCP tools (from tools/list on 2026-09-26): youtube_search, youtube_video, youtube_channel, youtube_comments, youtube_playlist, youtube_related, youtube_transcript, get_fetcher_healthz, get_fetcher_readyz, get_v1_hackernews_capabilities, hackernews_stories_top, hackernews_stories_new, hackernews_stories_best, hackernews_stories_ask, hackernews_stories_show, hackernews_stories_job, hackernews_search, hackernews_item, hackernews_user, app, list, search, developer, privacy, suggest, similar, reviews, ratings, googleplay_app_details, googleplay_search, googleplay_similar_apps, googleplay_permissions, googleplay_reviews, googleplay_developer, googleplay_categories, googleplay_category_apps, googleplay_suggest, googleplay_availability, googleplay_data_safety, web_search, webcontext_scrape, webcontext_crawl, webcontext_map, webcontext_brand, brand_retrieve, brand_search, brand_styleguide, brand_fonts, search_posts, subreddit_posts, post_by_id, post_by_permalink, user_activity, user_posts, monitor_list, monitor_create, monitor_get, monitor_update, monitor_changes, monitor_runs

## Summary

Read-only public-data APIs providing web context, search, social, app, and market intelligence data for developers and AI agents via REST, MCP, and SDK integrations.

## 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