Pulsars API

Free tools for humans & AI agents. FREE MCP

Quick Start

curl "https://api.pulsars.tools/v1/tva?montant=100&taux=0.20&direction=ht_to_ttc"

MCP Server (for AI Agents)

Connect your AI agent to https://api.pulsars.tools/mcp

{
  "mcpServers": {
    "pulsars": {
      "url": "https://api.pulsars.tools/mcp"
    }
  }
}

Endpoints

All endpoints accept GET (query params) and POST (JSON body). Full spec: /openapi.json

GET/POST /v1/tva — French VAT calculator
GET/POST /v1/auto-entrepreneur — French micro-enterprise income simulator
GET/POST /v1/compound-interest — Compound interest with contributions
GET/POST /v1/tdee — TDEE & macro calculator
GET/POST /v1/cidr — CIDR / IP subnet calculator
GET/POST /v1/business-days — Business days counter with holidays
GET/POST /v1/heures-creuses — Off-peak electricity comparison (FR)
GET/POST /v1/sleep-cycle — Sleep cycle calculator
GET/POST /v1/running-pace — Running pace & race predictions
GET/POST /v1/chmod — Unix permission calculator
GET/POST /v1/cron — Cron expression parser & next runs
GET/POST /v1/jwt — JWT decoder
GET/POST /v1/base64 — Base64 encode/decode
GET/POST /v1/uuid — UUID v4/v7 generator
GET/POST /v1/currency-exchange — Currency converter
GET/POST /v1/llm-pricing — LLM API cost calculator

Rate Limits

Free tier: 100 requests/minute per IP. No API key required.

Source

Website: pulsars.tools — All tools run 100% client-side on the web. This API exposes the same logic server-side.