Aaaa Nexus — Formally Verified AI Safety APIs
Call formally verified AI safety APIs from your agent with pay-per-use USDC (x402) instead of signing up for another SaaS dashboard.
Overview
aaaa-nexus is a MCP server for the Ship phase that provides 75+ formally verified AI safety APIs with pay-per-call USDC (x402) access and no signup.
What is this MCP server?
- 75+ formally verified AI safety API endpoints exposed via remote MCP
- Pay-per-call billing through USDC using x402 with no signup required
- Streamable-http MCP at aaaa-nexus.atomadictech.workers.dev/mcp (v0.4.0)
- Formally verified positioning for builders who need audit-friendly safety checks
- Open GitHub repo atomadictech/aaaa-nexus for integration reference
- 75+ API endpoints
- Version 0.4.0
- Pay-per-call USDC via x402
What problem does it solve?
Builders launching agents lack affordable, verified safety APIs they can invoke from the same MCP workflow they already use to write code.
Who is it for?
Solo builders shipping agent features who want formally verified safety checks and micro-priced API access during security hardening.
Skip if: Beginners who only need informal prompt guardrails or teams that cannot use USDC or x402-style micropayments.
What do I get? / Deliverables
After registering the remote server, your agent can call verified safety endpoints on demand and pay per call in USDC without a separate vendor account.
- Programmatic access to 75+ safety API endpoints via MCP tools
- Metered USDC billing without mandatory SaaS signup
- Integration path documented via GitHub and workers.dev site
Recommended MCP Servers
Journey fit
Safety and verification APIs matter most when you are hardening an agent product before release, not when you are only sketching an idea. Security subphase fits because the server sells verified safety endpoints and metered access controls aimed at trustworthy production agent behavior.
How it compares
Verified safety API gateway over MCP, not a local prompt-only skill or generic chat moderation SaaS with flat seats.
Common Questions / FAQ
Who is aaaa-nexus for?
It is for developers shipping AI agents who need programmatic, formally verified safety APIs callable from MCP-enabled coding tools.
When should I use aaaa-nexus?
Use it in the ship security pass when you validate agent outputs, policies, or autonomous actions before production traffic.
How do I add aaaa-nexus to my agent?
Add the streamable-http MCP URL https://aaaa-nexus.atomadictech.workers.dev/mcp to your Claude Code or Cursor MCP configuration and fund USDC pay-per-call as documented on the project site.