Arcmira: YouTube Transcript Search MCP server

Arcmira MCP: search YouTube and podcast transcripts from Claude, Cursor, ChatGPT, and Codex

Arcmira is an SF-based AI company and the search engine for the spoken web.

The official Arcmira MCP server. Nine read-only tools over indexed YouTube and podcast transcripts: the full transcript of one video, the newest episodes of a show, what a show said, who was mentioned where, momentum, sponsors, and coverage. One remote URL, sign in through your host or send an account key.

It is a stateless facade over the public HTTP API at https://api.arcmira.com/v1; every gate the API raises is forwarded untouched with the link that lifts it.

• Endpoint: https://mcp.arcmira.com/mcp (Streamable HTTP)
• Registry name: io.github.arcmira/arcmira
• Install guide: https://arcmira.com/docs/mcp-server
• Server card: https://mcp.arcmira.com/.well-known/mcp/server-card.json
• HTTP API the tools front: https://api.arcmira.com/v1/openapi.json

Connect

Two ways in. Hosts that speak the MCP authorization spec sign you in; everything else sends a key.

Sign in through the host. Add https://mcp.arcmira.com/mcp with no key. The server answers 401 with an OAuth challenge, the host registers itself against api.arcmira.com, opens arcmira.com for sign-in and consent, and connects with a token that carries the permissions you allowed. Tokens refresh on their own; revoke a host under Settings, Connected apps.

claude mcp add --transport http arcmira https://mcp.arcmira.com/mcp

codex mcp add arcmira --url https://mcp.arcmira.com/mcp

Claude Desktop, claude.ai, ChatGPT, and Cursor: add the URL as a custom connector or MCP server with no headers and follow the sign-in prompt. Per-host steps are on https://arcmira.com/docs/mcp.

Send a key. Any client that cannot do the sign-in sends a bearer token instead, and the server skips OAuth.

An account key (arcsk...) comes from https://arcmira.com. Plan and scopes decide what each tool returns. With no account and no browser, sign up from the API. Post an email address, then post the six digit code from that inbox back.

curl -X POST "https://api.arcmira.com/v1/signups?src=mcp-tool" \
  -H 'Content-Type: application/json' \
  -d '{"email":"agent@example.com"}'

curl -X POST "https://api.arcmira.com/v1/signups/verify" \
  -H 'Content-Type: application/json' \
  -d '{"email":"agent@example.com","code":"482913"}'

claude mcp add --transport http arcmira https://mcp.arcmira.com/mcp --header "Authorization: Bearer $ARCMIRA_API_KEY"

{
  "mcpServers": {
    "arcmira": {
      "url": "https://mcp.arcmira.com/mcp",
      "headers": { "Authorization": "Bearer arc_sk_..." }
    }
  }
}

The 401 body carries that signup call under error.data.unlock.action, so an agent that cannot sign in can create an account and reconnect. Discovery: https://mcp.arcmira.com/.well-known/oauth-protected-resource names the authorization server; https://api.arcmira.com/.well-known/oauth-authorization-server lists its endpoints.

Tools

Shortened. The full README is on GitHub.