middleBrick | API-Security alternatives
12 MCP servers, A2A agents and x402 APIs that also do security & trust, ai models & inference, ranked by how much they overlap with middleBrick | API-Security (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| middleBrick | API-Security (this one) | MCP server | Yes | – | – |
| NPM Sentinel MCP | MCP server | Yes | – | 55/100 |
| macaroonnetwork.com | x402 paid API | Yes | 12 | – |
| MCPpedia | MCP server | Yes | – | – |
| tensorfeed.ai | x402 paid API | Yes | 9 | – |
| VirtualSMS | MCP server | Yes | – | – |
| Anansi Haven | A2A agent | Yes | 24 | 90/100 |
| Apex Forge Commerce Node | A2A agent | Yes | 11 | 90/100 |
| twin.unykorn.org | x402 paid API | Yes | 12 | – |
| Validate Agent | A2A agent | Yes | 12 | – |
| Crimson Crawler | MCP server | Yes | – | – |
| CVElens Vulnerability Intelligence | MCP server | Yes | – | – |
| Dabra MCP | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- NPM Sentinel MCP Live MCP
Provide AI-powered real-time analysis and intelligence on NPM packages, including security, dependencies, performance, and quality metrics. Enable faster and safer package management decisions by integrating with Claude…
MCP server · Nekzus · check 55/100 · also does security & trust, ai models & inference
- macaroonnetwork.com Live x402
Discover which Macaroon Network service, endpoint, or data product to call next. Searches Macaroon's own published catalogue -- title, category, description, price, and trust evidence metadata -- and returns a short, so…
x402 paid API · 12 endpoints · also does security & trust, ai models & inference
- MCPpedia Live MCP
Search, evaluate, and compare 17,000+ MCP servers from the MCPpedia catalog. Every server is scored on **security, maintenance, efficiency, documentation, and compatibility** — with real CVE scanning and tool-poisoning…
MCP server · bbeksh · also does security & trust, ai models & inference
- tensorfeed.ai Live x402
Agent morning brief. One paid call returns the last 24 hours of AI pricing changes, new and removed models, service-status incidents, and top news headlines. The endpoint an agent calls on boot. (9 paid endpoints on ten…
x402 paid API · 9 endpoints · also does security & trust, ai models & inference
- VirtualSMS Live MCP
Real SIM phone numbers for AI agents performing SMS verification across 2000+ services (WhatsApp, Telegram, Tinder, Discord, Instagram, OnlyFans, Hinge, Bumble, PayPal, Google, Apple, Binance) and 145+ countries. 18 too…
MCP server · virtualsms · also does security & trust, ai models & inference
- Anansi Haven Live A2A
Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones and market hours, unit conversion, a safe calcul…
A2A agent · Anansi Data · 24 skills · check 90/100 · also does security & trust, ai models & inference
- Apex Forge Commerce Node Live A2A
x402-paid machine services on Base + Solana USDC: security audit verdicts, token/contract heuristic risk screens, release preflight, corpus search, routed LLM inference, live perp market data (funding/basis), lane healt…
A2A agent · NONSYNTHETIC · 11 skills · check 90/100 · also does security & trust, ai models & inference
- twin.unykorn.org Live x402
LLM chat completion (qwen2.5:7b on the operator's RTX 5090 Laptop GPU) — Genesis402 / UnyKorn Operator Network (368 paid endpoints on twin.unykorn.org.)
x402 paid API · 12 endpoints · also does security & trust, ai models & inference
- Validate Agent Live A2A
Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON sc…
A2A agent · Validate Agent · 12 skills · also does security & trust, ai models & inference
- Crimson Crawler Live MCP
Enrich, search, assess, and manage threat intelligence through 80+ typed MCP tools.
MCP server · com.crimsoncrawler · also does security & trust
- CVElens Vulnerability Intelligence Live MCP
CVE triage in one call: NVD, CVSS, CISA KEV, EPSS, public exploits and an explained risk score.
MCP server · com.cvelens · also does security & trust
- Dabra MCP Live MCP
Brazilian company and person data by CNPJ/CPF: registry, partners, tax status, sanctions, lawsuits.
MCP server · com.dabradata · also does security & trust