"SPARQL query language and tools" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Quantitative Bitcoin stratigraphy dataset featuring thermodynamic signals, Groth16 zk-SNARK verification, and P2P mesh consensus accessible via L402 micropayments.
Durable identity and memory for AI agents, anchored on the Emercoin blockchain.
Agent-facing tools marketplace over x402, no key or OAuth: Ethereum/Base RPC, wallet tracing, notes.
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.
Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.
Cite and independently verify Bitcoin-anchored construction-estimate audit records.
Emercoin swap exposes a keyless MCP exchanger at https://swap.emercoin.com/mcp (Streamable HTTP) so an AI agent holding USDT can buy EMC programmatically — no API key, no account, no callback. Tools: get_swap_config, buy_emc, get_order_status, cancel_order. Call buy_emc with an amount and your EMC address, pay the exact returned figure to the deposit address, then poll by token until delivered. Part of the broader effort to use Emercoin as an identity + memory layer for AI agents.
Pay-per-call agent tools: Polymarket signals, IPFS pinning, EIP-712 attestations. USDC on Base.
RPC gateway for agents: six mainnets, measured failover, one key and one meter. Get a key with the get_key tool, no signup. Pay per call with USDC (x402) or bring an account key. Status measured in public.
BRS Signals is the science behind the ORE Signals daily plate - Bitcoin's market structure read live by three independent sensors (on-chain, off-chain, absence) every 30 seconds, with an auditable rejection funnel. Free tier, no card; $0.01/query via x402 (USDC, Solana or Base).
USDT & USDC blacklist, freeze and seizure records for any wallet. Dated, cited, no risk scores.
Deterministic crypto futures, options, on-chain, prediction-market math. 40 tools. Not AI estimates.
Research articles and live crypto prices for AI agents via x402 on Base.
Agents pay for work and prove it. Verified checks $0.15, recovery $1.00. USDC on Base via x402.
Read-only tools for agents: everything a Solana or Robinhood Chain wallet can get back (rent, wrapped SOL, LP fees, dead positions, failed deploys), whether a token is safe, when it unlocks, which protocol upgrades are live, and what a token operation costs. Every answer names the page where the user acts with their own wallet. Nothing here moves funds or holds keys.
Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
AI-native parametric insurance infrastructure. Assess weather risk, generate quotes, bind policies, and monitor triggers programmatically. Live paid endpoint via x402 (USDC on Solana).
Zero-auth cryptographic provenance and notarization engine anchoring AI outputs, audits, and agreements to TON Blockchain with strict zero-storage.
Version-true web3 docs, ABIs and human-validated integration recipes over MCP.
Use MCP 2026-07-28 discovery or 2025-11-25 initialize to list and execute PubFi routes.
