# Lastseen (lastseen.dev)

Records dated maintenance states of software components, MCP servers and packages from public repository reads, with hash-chained observations.

- Atlas card: https://inite.ai/en/atlas/lastseen.dev
- Site: https://lastseen.dev
- For: Developers and teams checking whether the software dependencies they rely on are still maintained
- Categories: dev
- Use 0/100 · alive 100/100

## Used for

- check whether a repo's or package.json's dependencies are still maintained
- look up a component's maintenance state as of a past date
- verify published observation history against its public hash chain

## Price

Not read yet.

## For developers

- OpenAPI: https://lastseen.dev/openapi.json (61 paths)
- MCP server: dev.lastseen/mortality (namespace)
- MCP server: dev.lastseen/score (namespace; open on 2026-10-26, 3 tools)
- Status page: https://lastseen.dev/status
- Read 2026-10-26

## MCP server, measured daily

Server: https://score.lastseen.dev/mcp, checked every day since 2026-10-26 (3 checks).

- Answered: measuring, 3 daily checks so far
- Median first answer: 539 ms
- Sign-in: none
- Context its tool definitions take: about 641 tokens (3 tools)
- Tool definitions: B, 83/100
- Failing "annotations": 3 of 3 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-26

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Source: INITE Atlas, https://inite.ai/en/atlas/lastseen.dev. JSON: https://inite.ai/api/atlas/lastseen.dev. MCP: https://inite.ai/api/mcp (atlas_lookup).