Castos MCP by usefulapi
Read podcasts and episodes; create and update episodes; manage private subscribers in Castos.
What it does
Castos MCP by usefulapi is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)Hosted endpoint
https://castos.usefulapi.io/mcpstreamable-http
In Claude Code: claude mcp add --transport http castos-mcp-by-usefulapi https://castos.usefulapi.io/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"castos-mcp-by-usefulapi": {
"url": "https://castos.usefulapi.io/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 1h agoONLINE Castos MCP by usefulapi answered an MCP connection on 07 Nov 2026 and introduced itself as castos-mcp 1.0.0 (MCP protocol 2025-06-18).
14 tools offered to AI assistants
castos_list_podcasts· List the podcasts on the authenticated Castos account, with title, description, language and feed settings. Castos API: GET /podcasts.castos_get_podcast· Get one podcast by id, with its settings and metadata. Castos API: GET /podcasts/{podcast_id}.castos_update_podcast· WRITE. Change the metadata of an existing podcast. Only the fields you pass are sent. It does not change the cover image, the feed redirect or the episodes. Castos API: POST /podcasts/{podcast_id}.castos_list_episodes· List the episodes of one podcast, with id, title, created date and publish date. Castos API: GET /podcasts/{podcast_id}/episodes.castos_get_episode· Get one episode of a podcast by id, with its title, notes and audio details. Castos API: GET /podcasts/{podcast_id}/episodes/{episode_id}.castos_create_episode· WRITE. Add a new episode to a podcast. The audio is downloaded from episode_file_url (https, up to 40 MB) and uploaded to Castos. The episode may publish to the live feed at once, so check the publish date. Castos API: POST /podcasts/{podcacastos_update_episode· WRITE. Change the text or settings of an existing episode. Only the fields you pass are sent. To replace the audio, pass updated_episode_file as a public https URL. Castos API: POST /podcasts/{podcast_id}/episodes/{episode_id}.castos_list_private_subscribers· List the private subscribers of one podcast, one page at a time. Castos API: GET /private-subscribers.castos_get_private_subscriber· Get one private subscriber by subscriber id. Castos API: GET /private-subscribers/{subscriber_id}.castos_get_private_subscriber_by_email· Find a private subscriber by email. The reply lists the subscriber and its subscriptions; the subscription id is what castos_revoke_private_subscriber needs. Castos API: GET /private-subscribers/email/{email_address}.castos_create_private_subscriber· WRITE. Add an email address as a private subscriber of a podcast, so it can access the private feed. Castos API: POST /private-subscribers.castos_reactivate_private_subscriber· WRITE. Reactivate a private subscriber by subscriber id, for example after a revoke by mistake. Castos API: POST /private-subscribers/reactivate/{subscriber_id}.
Show 2 more
castos_revoke_private_subscriber· WRITE. Cancel one private subscription, so the subscriber loses access to that private feed. Pass the subscription id (see castos_get_private_subscriber_by_email). Castos API: POST /private-subscribers/{subscription_id}.castos_list_categories· List the podcast categories that Castos accepts for the itunes_category fields. Castos API: GET /get-categories.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Version | 1.0.1 | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Hosted endpoint | https://castos.usefulapi.io/mcp | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Website | https://usefulapi.io/castos/ | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Repository | https://github.com/m190/usefulapi-mcp | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 3m ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 3m ago |
Change history
- NEW07 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is Castos MCP by usefulapi still online?
Free alerts · no account▲ 0Do you run Castos MCP by usefulapi? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of Castos MCP by usefulapi?
Free · show your listingAn independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.
<a href="https://electraindex.com/mcp/castos-mcp-by-usefulapi?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/castos-mcp-by-usefulapi" alt="Listed on Electra Index"></a>Questions about Castos MCP by usefulapi
How do I connect Castos MCP by usefulapi?
Use the hosted endpoint https://castos.usefulapi.io/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does Castos MCP by usefulapi offer?
When Electra Index connected on 07 Nov 2026, it listed 14 tools: castos_list_podcasts, castos_get_podcast, castos_update_podcast, castos_list_episodes, castos_get_episode, castos_create_episode, castos_update_episode, castos_list_private_subscribers and more. The full list is in "Live check" above.
Is Castos MCP by usefulapi online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.