ChatAtlas Local
NPM · CHATATLAS-LOCAL
Search and read your saved ChatGPT and Claude chats, kept on your own computer.
Available components
Last scanned (5 hours ago)
Scores higher than 71% of npm servers
Category Memory and Knowledge
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 0 of 1 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to hnt504/chatatlas-local). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 0 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability68
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 831 tokens (~166/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 24 Oct 26 +16
- Malware scan: unverified → pass ▲ security
- Stability: unverified → 0.03 ▲ functional
- 23 Oct 26 65
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 24 Oct 2026 · Analysed npm/chatatlas-local@0.1.2
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | hnt504/chatatlas-local |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/hnt504/chatatlas-local/.github/workflows/release.yml@refs/tags/v0.1.2 |
| Rekor log index | 3421519363 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:7be9ab4082f4ca4bd6e871bea181f4e246a8ce12433472535289a39927734a11a385ca04f546175ecbcebaf0867d156a6b495337b8f85c4683ee0ac3a |
Background: How many MCP packages publish verified provenance →
Dependencies 1 package
| Packages resolved | 1 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
archive_overview Archive overview ~37
What the archive holds: how many chats from each platform, the dates they cover, the tags in use and when it was last imported.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_chats List chats ~187
Browse the user's saved conversations, newest first, by platform, date, words in the title or tag. Each line has the chat's id for read_chat.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | How many (default 25) |
| offset | integer | – | Skip this many (for the next page) |
| platform | string | – | Only chats from this platform: chatgpt, claude, gemini, grok, perplexity, deepseek… |
| since | string | – | Only chats from this date on: 2026-08-01, 2026-08 or 2026 |
| tag | string | – | Only chats with this tag |
| title | string | – | Words the title holds |
| until | string | – | Only chats up to and including this date: 2026-08-31, 2026-08 or 2026 |
No output schema declared.
No examples provided.
read_chat Read a chat ~115
Read one saved conversation, message by message, numbered from 1. Long chats come a page at a time: carry on with from_message. A very long single message comes in parts: carry on with part.
| Name | Type | Req | Description |
|---|---|---|---|
| chat | string | yes | The chat's id from search_chats or list_chats (its start is enough) |
| from_message | integer | – | Start at this message (default 1) |
| part | integer | – | For a message too long for one page: which part of it (default 1) |
No output schema declared.
No examples provided.
recent_topics Recent topics ~91
What the user talked about with their AIs over a stretch of days: how many chats on each platform, the tags that come up most, and the chats' titles week by week.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | How far back (default 30) |
| platform | string | – | Only chats from this platform: chatgpt, claude, gemini, grok, perplexity, deepseek… |
No output schema declared.
No examples provided.
search_chats Search chats ~202
Find the user's saved conversations that mention something: chats holding every word of the query in the title or messages (each word also matches longer words it starts, accents ignored), title matches first, then newest, with the best-matching message quoted. Each result has the chat's id for read_chat.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | How many chats (default 10) |
| platform | string | – | Only chats from this platform: chatgpt, claude, gemini, grok, perplexity, deepseek… |
| query | string | yes | The words to look for |
| since | string | – | Only chats from this date on: 2026-08-01, 2026-08 or 2026 |
| tag | string | – | Only chats with this tag |
| until | string | – | Only chats up to and including this date: 2026-08-31, 2026-08 or 2026 |
No output schema declared.
No examples provided.
How do I install the ChatAtlas Local MCP server?
ChatAtlas Local runs locally as an npm package, launched with npx -y chatatlas-local. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · chatatlas-local
claude mcp add hnt504-chatatlas-local -- npx -y chatatlas-local
What is the ChatAtlas Local MCP server?
ChatAtlas Local is an MCP server listed in the public MCP registry as io.github.hnt504/chatatlas-local. Search and read your saved ChatGPT and Claude chats, kept on your own computer. This page covers its npm package (chatatlas-local).
Is the ChatAtlas Local MCP server safe to use?
ChatAtlas Local scores 81 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 24 October 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the ChatAtlas Local MCP server expose?
ChatAtlas Local exposes 5 tools: search_chats, list_chats, read_chat, recent_topics, archive_overview. Their descriptions and schemas cost roughly 632 tokens of context every time the server is loaded.
Is the ChatAtlas Local MCP server still maintained?
ChatAtlas Local is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the ChatAtlas Local MCP server under?
ChatAtlas Local declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.