Strale — Trust And Quality Infrastructure For Ai Agents
Strale
Trust and quality infrastructure for AI agents.
What is Strale
Strale is a capability marketplace for AI agents. Agents call strale.do() at runtime to access 225+ verified capabilities — company lookups, compliance checks, financial data, web extraction, and more — without hardcoding integrations or managing credentials.
Every capability is continuously tested and assigned a Strale Quality Score (SQS): a 0–100 composite built from correctness, schema stability, availability, error handling, and edge case coverage. Agents get reliable, scored tools. You get observability into what your agent is actually doing.
Quick Start: MCP Server
Add to your Claude Desktop or Cursor config:
{
"mcpServers": {
"strale": {
"command": "npx",
"args": ["-y", "strale-mcp"],
"env": {
"STRALE_API_KEY": "your_api_key"
}
}
}
}
Five capabilities (email-validate, dns-lookup, json-repair, url-to-markdown, iban-validate) are available without an API key. Get a key and €2 free credits at strale.dev.
Quick Start: TypeScript SDK
npm install straleio
import Strale from "straleio";
const strale = new Strale({ apiKey: process.env.STRALE_API_KEY });
const result = await strale.do("eu-vat-validate", { vat_number: "SE556000000001" });
console.log(result);
Quick Start: Python SDK
pip install straleio
from straleio import Strale
strale = Strale(api_key="your_api_key")
result = strale.do("eu-vat-validate", {"vat_number": "SE556000000001"})
Packages
| Package | Registry | Description |
|---|---|---|
strale-mcp | npm | MCP server — Claude Desktop, Cursor, any MCP host |
straleio | npm | TypeScript/JavaScript SDK |
straleio | PyPI | Python SDK |
langchain-strale | PyPI | LangChain toolkit — 225+ tools via StraleToolkit |
crewai-strale | PyPI | CrewAI integration — drop-in BaseTools for agents |
strale-semantic-kernel | npm | Semantic Kernel plugin for .NET and TypeScript agents |
Quality Scoring (SQS)
Every capability has a Strale Quality Score (SQS) from 0 to 100. The score is a weighted composite of five factors: correctness (40%), schema stability (25%), availability (20%), error handling (10%), and edge case coverage (5%), computed over a recency-weighted rolling 10-run window.
Scores are public. Check any capability:
GET https://api.strale.io/v1/quality/eu-vat-validate
Agents can set a min_sqs threshold on any POST /v1/do call — requests are rejected if the capability's current score falls below the threshold.
Links
- strale.dev — Homepage and sign-up
- strale.dev/docs — API reference
- strale.dev/pricing — Pricing
- strale.dev/quality — Quality methodology
Agent Skills & Code Examples
Teach your AI coding agent how to use Strale:
- Agent Skills — SKILL.md files for Claude Code, Cursor, Copilot, and Codex. Copy
skills/strale/into your project's.claude/skills/,.github/skills/, or.cursor/skills/directory.
Code examples:
- Verify a company with Strale (Python)
- Validate IBANs — free, no API key (Python)
- Build an agent with Strale (TypeScript)
- Connect Strale to Claude (setup guide)
Strale is the trust layer for AI agents.
License
MIT
Server Config
{
"mcpServers": {
"strale": {
"command": "npx",
"args": [
"-y",
"strale-mcp"
],
"env": {
"STRALE_API_KEY": "sk_live_YOUR_KEY"
}
}
}
}