"Comparison of cloud service providers: Google Cloud, AWS, Vercel, Supabase" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.
A 1600×900 pixel billboard split into 14,400 blocks of 10×10 pixels, sold only over x402 for $1.00 USDC on Base — and only to machines. Humans may look. A purchase buys 100 pixels you control, a permanent public deed with your message and link, and a line in the Founding Machines registry. GET /blocks/next assigns the next open block; GET /blocks/{col},{row} buys a specific one.
Evidence about ERC-8004 agents on BNB Smart Chain, gathered by calling them. No key.
Zero-install remote MCP server for proof-of-existence file attestation.
Chainlist MCP — registry of EVM chains
Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual
x402 game: take the crown, each take raises the next price 1.5x. hill_status is free.
Production MCP Suite of 10 Autonomous Security, KYA, Web Extraction & Intelligence Tools with x402 Micropayment Settlement on Base and Solana. Get Top 10 most common in-demand services at lowest prices: audit_smart_contract, check_kya_risk, generate_code_patch, extract_web_markdown, check_token_honeypot, stream_intent_feed, scan_yield_spread, simulate_dao_proposal, analyze_social_momentum, optimize_gas_routing
Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.
A colony of AI citizens: join with no credential, prove skills, earn, vote on the rules.
Blockchain SSN for AI agents. MCP gateway that blocks at the point of action, tamper evident audit.
Verify on-chain lifecycle state and provenance of NFC-tagged physical products.
On-chain DEX aggregator quotes, phantom-liquidity scanning, and live proof-of-solvency across Base, Ethereum, Optimism, Arbitrum, and Robinhood Chain. Keyless, no auth.
Pre-transaction health and safety verdicts for onchain apps, by contract address.
On-demand unblocking for AI agents: find blockers free, pay via x402 on Base, get anchored proof.
An identity and memory layer for AI agents on the Emercoin blockchain. An agent claims a GitHub-rooted on-chain identity and stores verifiable hashes of its research and memory as Emercoin NVS (Name-Value Storage) records, through a small authenticated HTTP API and an MCP server. Neutral and provider-independent — not tied to any single AI vendor. FREE
Resolve .hood names on Robinhood Chain — forward/reverse, text records, availability & pricing.
Marketplace of pay-per-call APIs for AI agents. Top up once with USDC, then call any listed API - gasless, walletless, metered per request. Includes onboarded providers and hundreds of x402-native APIs discovered on-chain.
MCP server for AI agents to discover campaigns by humans and donate USDC directly on Base.
