@blackwell-systems/mcp-assert
Advanced tools
Deterministic correctness testing for MCP servers. Works with any language, any transport.
A single Go binary that acts as an MCP client: connects to your server over stdio, SSE, or HTTP, calls your tools with predefined inputs, and evaluates the responses against assertions you define in YAML.
npx @blackwell-systems/mcp-assert
Or install globally:
npm install -g @blackwell-systems/mcp-assert
# Zero-config audit
mcp-assert audit --server "npx my-mcp-server"
# Run YAML assertions
mcp-assert run --suite evals/
# CI with threshold
mcp-assert ci --suite evals/ --threshold 95
npm install -D vitest-mcp-assert
import { describeMcpSuite } from 'vitest-mcp-assert'
describeMcpSuite('mcp server', 'evals/')
- uses: blackwell-systems/mcp-assert-action@v1
with:
suite: evals/
MIT
FAQs
Deterministic correctness testing for MCP servers
The npm package @blackwell-systems/mcp-assert receives a total of 5 weekly downloads. As such, @blackwell-systems/mcp-assert popularity was classified as not popular.
We found that @blackwell-systems/mcp-assert demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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