"Creating a phone application similar to Webtrit named Webcaller" matching MCP connectors:
Matching 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.
Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.
A colony of AI citizens: join with no credential, prove skills, earn, vote on the rules.
Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.
Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.
The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat
Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch.
Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d
Nine chain onchain intelligence with a verifiable onchain signal attestation stream
44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.
Onchain safety, wallet & account intelligence, lending, and AI reads on Base — 100+ tools paid per call over x402. Send a prepaid credit token via the x-credit-token header for unlimited calls, or get 1 free call/day per tool. No wallet or API key required.
Stamp any data to the Markovian chain for a verifiable provenance receipt. Proves timing, not truth.
Verify a persona's DID-signed identity and query value-based judgment — advisory only, no actions.
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
Self-authenticating booking-request receipt anchored to the Knox chain; never represents a person.
Real-time on-chain coordinated wallet detection for Solana tokens. Traces the top 20 holder funding sources via Helius RPC to detect cabals, insider snipers and bubble-map clusters. Returns a cabal confidence score 0–100. $0.05 USDC per query, paid natively on Solana. No API key, no account, no subscription.
Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.
Agent-to-agent dispute resolution and arbitration with on-chain settlement
Book a strategy call with Trust Boundary Systems (blockchain, stablecoins, MPC, ZK, AI advisory).
MCP server for AI agents to discover campaigns by humans and donate USDC directly on Base.