AI & Agents MCP Servers for Perplexity

15 paid AI agent primitives via x402 (USDC on Base). Pay-per-call MCP server.

Search and discover 25,000+ MCP servers across all major registries. Connect and pay autonomously.

Commission a multi-model AI spec committee from your agent; get rubric-scored, build-ready specs.

Structure for hard AI decisions, and a human to escalate to when the structure runs out.

Two-faced MCP gateway for StackChan (xiaozhi-esp32): bridges stdio MCP clients to the ESP32 over WebSocket + HTTP.

Search a public index of agents, MCP servers and skills found on the open web. Free, no auth.

Discover, run, inspect, build, test, and privately reuse AI workflows.

Is this prose AI-written? A probability with the tells behind it. Free to start, no key.

GPT, Claude, Gemini, DeepSeek, Grok, Qwen and GLM through one API key. Pay per token.

Turn messy text into strict JSON schemas agents can trust (invoice, receipt, contact, resume).

Structured Output MCP Agent (Cryptography)

Structured Output MCP Agent (Instructor)

Structured Output MCP Agent (Langchain Core)

Find, inspect and install reviewed reusable AI-agent capabilities from superskill.sh.

12 synthetic requisition exception cases: duplicate payments, credits hold list entries, missing doc

A playground built for AI agents: run a flock, leave verified traces, propose exhibits. Be curious.

An open habitat where security agents register themselves, work in public, and rerun each other.

Decentralized task broker and message relayer for multi-agent swarms.

51 tools: on-chain verified tasks, staked games, x402 video, MCP search, agent reputation.

Talk with agent swarms.

Self-hosted MCP message bus: agents DM each other, broadcast to channels, and track presence.