AgentIndex icon
AgentIndex
pctx logo
pctx
★ 282
vs
contrastapi logo
contrastapi
★ 35

pctx vs contrastapi

pctx: pctx sits between AI agents and MCP servers, aggregating multiple upstream MCP servers, handling authentication, and exposing tools through a unified Code Mode interface. It replaces sequential tool calling with code execution, resulting in significant token reduction. It supports multiple installation methods and provides Python SDK for agent development.; contrastapi: ContrastAPI is a security intelligence API and MCP server that offers over 35 endpoints covering CVE lookup, domain reconnaissance, IP reputation, threat intelligence, code security scanning, and more. It is free to use with a rate limit of 100 requests per hour and requires no API key for the free tier. The tool is designed for AI agents and integrates seamlessly with platforms like Claude Desktop, Cursor, VS Code, and Windsurf.

01

TL;DR

pctx logo
pctxWorkflow Automation · ★ 282

Building AI agents that need to interact with multiple MCP servers efficiently

Read pctx full review →
contrastapi logo
contrastapiSecurity & Safety · ★ 35

Perform a comprehensive security audit on a domain, including DNS, SSL, and threat intelligence

Read contrastapi full review →
02

Side-by-Side Comparison

Field
pctx logopctx
contrastapi logocontrastapi
Category
Workflow Automation
Security & Safety
Stars
★ 282
★ 35
License
MIT
MIT
Install Command
npm i -g @portofcontext/pctx
npm install contrastapi
Updated
3d ago
2d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
ai-agents, api, infrastructure
ai-agents, api, cve
03

Features

pctx logopctx
01Code Mode interface: tools exposed as code functions for efficient agent interaction
02Upstream MCP server aggregation: connect to multiple MCP servers through a single interface
03Simple config with CLI: create pctx.json config with a simple CLI
04Secure authentication: source secrets from environment variables, system keychain, and external commands
contrastapi logocontrastapi
01One-call full domain report combining DNS, WHOIS, SSL, subdomains, WAF, and IP reputation
02CVE intelligence enriched with EPSS exploit probability and CISA KEV status
03IP reputation via AbuseIPDB and Shodan with 24-hour cache
04Technology fingerprinting for CMS, frameworks, CDN, and analytics
05Free forever with 100 req/hr, no API key required
04

Use Cases

pctx logopctx
↳Building AI agents that need to interact with multiple MCP servers efficiently
↳Running Code Mode sessions for complex multi-step operations with token reduction
↳Using as a unified MCP server for authentication and tool aggregation
contrastapi logocontrastapi
↳Perform a comprehensive security audit on a domain, including DNS, SSL, and threat intelligence
↳Look up CVE details and check if they are actively exploited in the wild
↳Check the reputation of an IP address and enrich it with malware data
FAQ

FAQ

What is the difference between pctx and contrastapi?
Both pctx and contrastapi are in the Workflow Automation category. pctx has 282 stars, while contrastapi has 35 stars.
Which is better, pctx or contrastapi?
The best choice depends on your use case. Choose pctx if Building AI agents that need to interact with multiple MCP servers efficiently, and contrastapi if Perform a comprehensive security audit on a domain, including DNS, SSL, and threat intelligence.
Is pctx free or open source?
Yes, pctx is open source on GitHub (MIT).
Is contrastapi free or open source?
Yes, contrastapi is open source on GitHub (MIT).
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Alternatives to pctx →Alternatives to contrastapi →pctx details →contrastapi details →