io.github.cyanheads/oeis-mcp-server vs io.github.firebase/firebase-mcp
io.github.cyanheads/oeis-mcp-server is an MCP server published by cyanheads. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.firebase/firebase-mcp is an MCP server published by firebase. Marketplaces we read that list it: 3 (Official MCP Registry, Claude Code: claude-plugins-official, Community GitHub marketplaces). As of our marketplace pass on 2026-10-24. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  io.github.cyanheads/oeis-mcp-server |  io.github.firebase/firebase-mcp |
|---|---|---|
| Official MCP Registry | Listed Version: 0.1.3 Downloads/month (npm): 451 Downloads/week (npm): 72 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Listed Version: 0.3.0 Downloads/month (npm): 13 473 266 Downloads/week (npm): 2 048 898 Forks (GitHub): 1 273 Stars (GitHub): 4 480 Not marked · First seen |
| Claude Code: claude-plugins-official | Not listed | Listed Version: not stated Forks (GitHub): 4 643 Stars (GitHub): 44 178 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | io.github.cyanheads/oeis-mcp-server | io.github.firebase/firebase-mcp |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 1 (worse) | 44 178 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 4 643 (better) |
| Last release (differs) | 2026-10-18 | Not published |
| Where it runs (differs) | Remote server (oeis.caseyjhand.com/mcp) | On your machine (firebase-tools) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 7, secrets among them: 0 | 1, secrets among them: 0 |
| Parts of the bundle (differs) | Not a bundle | 15 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/cyanheads/oeis-mcp-server | github.com/firebase/firebase-tools |
| Changes in the last 7 days (differs) | 3 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 2 days ago | no remote endpoint we check |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
io.github.cyanheads/oeis-mcp-server
Identify integer sequences by terms, search the OEIS, read formulas, programs, b-files, cross-refs.
io.github.firebase/firebase-mcp
Gives AI development tools Firebase-specific capabilities and expertise.
How to run each
io.github.cyanheads/oeis-mcp-server As a remote MCP server
claude mcp add --transport http oeis-mcp-server https://oeis.caseyjhand.com/mcpio.github.firebase/firebase-mcp As a local MCP server: npm package
claude mcp add --transport stdio firebase-mcp -- npx -y mcp firebase-toolsCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.cyanheads/oeis-mcp-server has a remote endpoint we check. How we check endpoints
Tools each declares
Neither the marketplaces of io.github.firebase/firebase-mcp nor its endpoint list any tools, so we do not compare tools.
Settings each asks for
Only io.github.cyanheads/oeis-mcp-server asks for
MCP_AUTH_MODEMCP_HTTP_ENDPOINT_PATHMCP_HTTP_HOSTMCP_HTTP_PORTMCP_LOG_LEVELMCP_TRANSPORT_TYPEOEIS_QUEUE_MAX_WAIT_MS
Only io.github.firebase/firebase-mcp asks for
IS_FIREBASE_MCP
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: io.github.cyanheads/oeis-mcp-server · What it can do: io.github.firebase/firebase-mcp · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.