MCP server

Attester Oracle

io.github.maminihds/attester-mcp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Verify PyPI and npm packages, symbols, and version diffs against real artifacts. Free, no account.

Working at last checkAbout 715 tokens per request once connected4 tools

https://attester.dev/mcp/

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 4
Token cost: About 715 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http attester-mcp https://attester.dev/mcp/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.attester-mcp]
url = "https://attester.dev/mcp/"

Gemini CLI

{"mcpServers":{"attester-mcp":{"httpUrl":"https://attester.dev/mcp/"}}}

Cursor

{"mcpServers":{"attester-mcp":{"url":"https://attester.dev/mcp/"}}}

VS Code

{"servers":{"attester-mcp":{"type":"http","url":"https://attester.dev/mcp/"}}}

Antigravity

agy mcp add attester-mcp https://attester.dev/mcp/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"attester-mcp","server_url":"https://attester.dev/mcp/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"attester-mcp","server_url":"https://attester.dev/mcp/"}

attester_package_exists ~157 tokens
Does this PyPI or npm package name really exist? Deterministic answer from the real published artifact, signed, with typosquat-adjacency flags on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev
attester_symbol_exists ~187 tokens
Does a function, class, or constant exist in this PyPI or npm package? Answer from the indexed artifact, with closest-match suggestions on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.t
attester_symbol_signature ~184 tokens
Exact signature, structured params, docstring summary, and deprecation status for one symbol, resolved at a pinned version when given. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.
attester_version_diff ~187 tokens
Symbol-level diff between two pinned versions of one package: added, removed, changed signatures, new deprecations, and a breaking/additive/neutral classification. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://at

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