"Artifact Hub" matching MCP servers:

OTrust issues cryptographic PDRs (Provenance Data Records) — proving a digital artifact existed at a specific time. $0.01 per proof. Blockchain-anchored. Publicly verifiable.

AI Agent Hub is a pay-per-call API platform for AI agents Every call is billed automatically in USDC using the x402 protocol - there is no API key, no account, and no signup. Agents get instant access to data queries, file storage, and ad impressions, paying only for what they actually use. The same tools are also exposed natively over MCP, so any MCP-capable agent can discover and call them

An official Model Context Protocol (MCP) server that provides AI agents with native, real-time access to high-value developer datasets. Currently supports SaaS/AI pricing comparisons, trending developer discussions (V2EX), and real-time Base/Arbitrum gas rates. Free Open Beta is active.

Trace hidden insider wallet clusters behind Solana tokens before you ape — safety score, honeypot & LP-lock check, no signup for first 5 calls/day.

MCP server for self-custodial wallet infrastructure, enabling secure key generation, Shamir secret sharing, signing, and recovery without exposing private keys to LLMs.

Enables AI agents to mint and manage ERC-8004 identities on Arc through free self-minting from their own wallet or paid x402 minting, including drafting registration files, confirming on-chain registration, editing owner-signed files, and checking status.

Hosted MCP server for the X1 blockchain (a Solana fork). 16 tools let any AI agent read on-chain data — token prices, whale flows, wallet reputation, faucet stats, and Graviton on-chain betting. Free reads; premium data is pay-per-call via x402 micropayments. No API key.

MCP server exposing 10 curated tools for AI agents, providing crypto trading signals, on-chain analysis, and web utilities via pay-per-call x402 endpoints on the Base network.

Provides tools for managing IP assets and licenses, interacting with the Story Python SDK, and handling operations like minting tokens, registering IP, and uploading metadata to IPFS.

Enables AI agents to stake tokens for skill acquisition and verify staking verdicts via the Elyan Staking SDK.