Anthropic ToolsSAFE
None
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
⚠️ DEPRECATION NOTICE This repository is deprecated and no longer maintained. For up-to-date information on using tools with Claude, please refer to our official documentation at: https://docs.anthropic.com/en/docs/build-with-claude/tool-use The official API provides a more robust, supported, and production-ready implementation of tool use functionality.
A repo for using tools/function calling with Anthropic models. This SDK is Currently in Alpha and meant ONLY AS A RESEARCH PREVIEW. We promise no ongoing support. It is not intended for production use. Production-ready function calling support is coming to the Anthropic API soon.
Setup
Set your Anthropic API key as an environment variable:
# MacOS
export ANTHROPIC_API_KEY={your_anthropic_api_key}If you are accessing Claude through AWS Bedrock, set the following enviroment variables instead:
# MacOS
export AWS_ACCESS_KEY_ID={your_AWS_access_key_id}
export AWS_SECRET_ACCESS_KEY={your_AWS_secret_access_key}
export AWS_SESSION_TOKEN={your_AWS_session_token}[Optional] If you want to test the Brave search tool, set your Brave API key as an enviroment variable (get a key here):
# MacOS
export BRAVE_API_KEY={your_brave_api_key}Create a Python Virtual Environment:
# MacOS python3 -m venv anthropictools source anthropictools/bin/activate
Install Requirements:
pip install -r requirements.txt
Getting Started
anthropic-tools follows a very simple architecture that lets users define and use tools with Claude. There are two classes users should be familiar with: BaseTool and ToolUser.
Additionally, anthropic-tools introduces a new structured prompt format that you will want to pay close attention to. This should make for easier prompt construction and parsing.
anthropic-tools also supports a number of pre-built tools out of the box, built on top of the same primitive
de71ca1556ecOBSERVED · 2026-10-01Exposed tools (1)
1 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
test | read | This is a test search tool. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- declared (5 observation(s))
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (2)
tool_use_package/tools/search/vector_search/data/amazon-products.jsonl
Gates applied: no_behavioural_pass, no_license.
de71ca1556ecfull audit observations/trust-audit/mcp-server/anthropics__anthropic-tools.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-01 | de71ca1556ec | SAFE | B | 89 | first audit |
Questions
What is the Anthropic Tools MCP server?
None
What tools does Anthropic Tools expose?
1 in total: 1 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Anthropic Tools safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does Anthropic Tools need?
It reads BRAVE_API_KEY, ELASTICSEARCH_API_KEY, ELASTICSEARCH_API_KEY_ID, HUGGINGFACE_API_KEY and PINECONE_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.
How current is this page?
The grade is for one exact copy of the source (de71ca1556ec), read on 2026-10-01. The repository is watched and re-audited when it changes.