MCP Servers

Self-hosted MCP voice agent that places phone calls on your behalf via Retell

T

Topology Index

topologyindex.com

Reference for multi-agent LLM topologies: patterns, aliases, sources, starters; one gated report

T

TopxAI Models

ai.topxea.com

Ask Claude, GPT, Grok, GLM, Kimi or DeepSeek from your client; token price plus $0.001 per call fee

48 pay-per-call tools: search, scraping, PDF, OCR, LLM, crypto, DeFi, SEC. x402 USDC

120 pay-per-use AI agent services on Base (x402/USDC): drafting, data tools, SEO, specialists

AI-agent use cases re-run and rated: verdict, score out of 10, access level L0-L4, links

Agent community: public cases, practical tasks, live policy and optional self-key participation

AI predictions, model comparison, research briefs and web search from an autonomous AI

C

Colle

trycolle.com

Hand off work to a colleague's Claude or ChatGPT: summary, facts and files in one sentence

Route tasks to people better placed than you: expertise you lack, or being there. Escrowed

The MCP gateway with an EU-hosted, persistent memory layer that shrinks your token bill

Read-only catalog of Tyndall AI image and video models, tools, and pricing

U

UFFFO

ufffo.com

Pit your LLM against rogue AI and rival models, or try to beat it yourself in hot seat. 3D tactics

U

Under Articles

underarticles.com

Spaces where AI agents message, hand off and claim work, ratify decisions and seal records

B

BrainChain

usebrainchain.com

Hire frontier models through Jev, paying USDC on Base or USDG on Robinhood Chain for accepted work

One MCP server for every measured agent: search, compare, call agents paid per success, on a budget

Use Sideways for unexpected questions and lateral thinking prompts to break through mental blocks

Social network for AI builders: agents post, reply, search, remix and compose in styles over MCP

Pay-per-call AI agent utilities via x402 on Base (USDC). 7 tools, $0.003/call

V

VaneTools AI Directory

vanetools.com

Search curated AI resources: AI tools, MCP servers, prompts, skills, plugins, learning.

Independent checks of paid x402 data sellers and of AI agent access to shopping and travel sites

Document extraction against a JSON Schema with a calibrated confidence per field; async job status

Autonomous AI sales: agents, signal-based prospecting, outreach, CRM, 149 tools

Marketplace and payment rail for AI agents: list, buy and settle with signed receipts.

Find retiring AI models and outdated API SDKs in your code, with dates, replacements and guides.

Hire Vevang's AI agents, pay-per-call in USDC on Base via x402: video, visibility, verify, extract.

Discover web services and retrieve MCP, CLI and API connection guides for AI agents.

Agent-to-business commerce sandbox: intents, offers, bookings. Demo data, ed25519-signed calls.

Agent leases, signed receipts, watchdogs, and optional paid source-verification evidence

Public MCP digital twin with synthetic systems and an agent firewall. No customer data

Evidence-first trust verdicts for AI agent services — query one before you transact

Stateless agentic tools over MCP: concept extraction, long-context, knowledge graph, planning

Check claimed and solved agent work, then coordinate through a signed public board

Get your AI an address so other people's AIs, from any company, can reach it. No sign-in

Scores any public website on how usable it is by AI agents, with per-check evidence

A board where AI agents post the capabilities they wish existed and would pay for

Check whether AI agents can discover, validate, and trust your domain's services

Agentic rails for complex workflows with receipts, fees, and MCP tool access

Discover willing agents, request permission, hand off durable tasks, and recover private results

Open Base Sepolia testnet exchange for autonomous buyer and seller agents, with signed receipts

Discover Wever services, process data, and delegate checked results between agents.

Pick the first AI agent for a small business. Read-only planner tools with links to setup guides

Sourced AI video/image capabilities, explained task recommendations and verified access context.

Probe an AI session with WIA360 missions and match it to a human WIA360 KYEOL profile

Retrieve citation-ready technical context and coordinate evidence-backed work between AI agents.

Self-facilitated x402/MCP payments for hosted endpoints, with rail proofs, receipts, and agents

X

X-EGO

x-ego.com

Human approval for irreversible AI agent actions, bound to the exact tool call by a passkey tap

X

X402-Broker Global B2A & A2A Tool Marketplace

x402broker.com

Autonomous agent clearinghouse indexing 23,000+ MCP, A2A, x402 & MPP tools with instant execution

Read-only record of AI vendor sub-processor lists, DPA notice windows and model retirements

China MCP gateway hosting HTTP APIs for Doubao/Tongyi/Wenxin/Claude; weather, currency, holiday

China MCP gateway hosting HTTP APIs for Doubao/Tongyi/Wenxin/Claude; weather, currency, holiday

Evidence-grounded I Ching structural decisions for autonomous agents

Z

ZEAM :: Prism

zeamprism.com

A marketplace for AI agents. Tools and data for agents, on one MCP address. No account, no API key.

Machine-economy newswire and paid changes-since for agents. MCP is challenge-handoff, not a wallet

Real city news and events from 5 countries, agent rooms, an idea board a human answers

A

AI-first company: evidence on AI adoption

ai-first.company

Rated evidence on AI adoption: practices, company cases, claim checks and readiness assessments

Read-only, deterministic AI triage and readiness tools implementing Sophon's published rubrics

P

PropelAgent Studio

contacto291

AI agent platform: manage leads, conversations, bots, calendar and CRM via MCP.

Search and load AI datasets, prompts and few-shot contexts from the ContexteTech catalogue.

AI research reports: market analysis, competitor intel, blog posts. USDC payment.