Arch Tools - The First API Platform AI Agents Can Pay Autonomously

# Arch Tools > The first API platform built for autonomous agent payments. > 64 production-ready tools. One API key. USDC on 15+ chains via x402 or Stripe. > Base URL: https://archtools.dev > Docs: https://archtools.dev/docs > OpenAPI: https://archtools.dev/openapi.json > MCP SSE: https://arch-tools-mcp.onrender.com/sse > Discovery: https://archtools.dev/v1/tools > Agent Card: https://archtools.dev/.well-known/agent.json > GitHub: https://github.com/Deesmo/Arch-AI-Tools ## Authentication All tool endpoints require an API key: Authorization: Bearer YOUR_API_KEY Get a free key (100 credits) at https://archtools.dev/#register ## x402 Autonomous Payment (no key required) AI agents can pay per-call with USDC on Base via the x402 protocol. No API key, no signup, no human credit card needed. Discovery: https://archtools.dev/.well-known/x402 Protocol: https://x402.org ## Credit Pricing - Starter Pack: 10,000 credits — $9 ($0.0009/credit) - Pro Pack: 60,000 credits — $49 ($0.00082/credit) - Business Pack: 250,000 credits — $199 ($0.00080/credit) ## Tool Categories ### AI & NLP - [AI Generate](https://archtools.dev/v1/tools/ai-generate): Text generation via Claude Sonnet (20 credits) - [AI Oracle](https://archtools.dev/v1/tools/ai-oracle): Premium reasoning with structured analysis (25 credits) - [Summarize](https://archtools.dev/v1/tools/summarize): 5 styles — bullets, tldr, executive (10 credits) - [Sentiment Analysis](https://archtools.dev/v1/tools/sentiment-analysis): Sentiment + 6 emotions (8 credits) - [Extract Entities](https://archtools.dev/v1/tools/extract-entities): NER — people, orgs, locations, dates (8 credits) - [Language Detect](https://archtools.dev/v1/tools/language-detect): 100+ languages with confidence (3 credits) - [Regex Generate](https://archtools.dev/v1/tools/regex-generate): Natural language → validated regex (8 credits) - [PII Detect](https://archtools.dev/v1/tools/pii-detect): Detect and redact PII (10 credits) - [Research Report

{ "openapi": "3.1.0", "info": { "title": "Arch Tools API", "version": "1.10.0", "description": "Production-ready API tools for developers and AI agents. Use one API key across the platform or pay with x402 USDC micropayments.", "contact": { "url": "https://archtools.dev", "email": "support@archtools.dev" } }, "servers": [ { "url": "https://archtools.dev" } ], "security": [ { "ApiKeyAuth": [] } ], "components": { "sec