# Agent402.Tools — pay-per-call web tools (io.github.MikeyPetrillo/agent402@0.12.7) > Source: > Published: 2026-08-18 17:44:37+00:00 [← Index](/leaderboard) # Agent402.Tools — pay-per-call web tools Agentic Finance (AIFI): 500+ pay-per-call tools for AI agents over x402 + MPP, or free via PoW. The current version, v0.12.7, was published to the official MCP registry on 2026-08-18. It is distributed as agent402-mcp on npm and as a hosted remote over streamable-http, filed under Finance & Payments by this index, and declares 3 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](/stats) put this record in context. ## Using Agent402.Tools — pay-per-call web tools in Claude, Cursor, Gemini CLI, Cline, or Zed? MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that). Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less ``` uv tool install mcpindex-gate && mcpindex-config-wire ``` [method](/methodology) Semantic screen found no manipulation pattern in the description. Conformance probe not yet run. `mcpindex.integrity.description` passINFOevidence“No malicious instructions found”via static_description - - Semantic screen only - the deterministic conformance probe has not run on this server - - Confidence is reported but not yet calibrated (v1) - - Screen reads the tool description, not the live behavior - - advisory - - registry description only no input schema - - screen model 8b - - The description this screen assessed is no longer the one published - - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page. Own this server? [Screen its description →](/screen) ## That verdict was true at screening time (snapshot 2026-08-18). Contracts can change after screening, with no version bump. The gate pins Agent402.Tools — pay-per-call web tools’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday. [See your first HOLD in 2 minutes →](/guides/install-the-gate-first-hold) Related: [how to trust an MCP server](/guides/how-to-trust-an-mcp-server) · [screen before install](/guides/screen-mcp-server-before-install) · [silent contract drift](/guides/mcp-silent-contract-drift) People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land. ``` [Independent trust record for Agent402.Tools — pay-per-call web tools](https://mcpindex.ai/server/io-github-mikeypetrillo-agent402) - screening verdict, registry provenance, and contract drift monitoring. Independent trust record for Agent402.Tools — pay-per-call web tools - screening verdict, registry provenance, and contract drift monitoring. ``` A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does. ``` [![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-mikeypetrillo-agent402)](https://mcpindex.ai/server/io-github-mikeypetrillo-agent402) mcpindex verdict ``` `AGENT_KEY` Hex private key of a wallet funded with USDC on Base, Solana, Polygon, Arbitrum, Monad, Celo, Avalanche, Sei, Optimism, Stellar or Algorand (or USDG on Robinhood Chain). Unset = proof-of-work mode (free pure-CPU tools). `AGENT402_BUDGET` Optional hard cap on total USDC spent per session (e.g. 1.00). Refused before any payment is signed. `AGENT402_MAX_PER_CALL` Optional max USD price for any single call (e.g. 0.01). [methodology](/methodology) [Diavgis — Greek Public Procurementgr.diavgis/procurement](/server/gr-diavgis-procurement) Search Greek public procurement: tenders, awards, contracts, payments, buyers and suppliers. [three.ws 3D Studio (free)io.github.nirholas/threews-3d-studio-free](/server/io-github-nirholas-threews-3d-studio-free) Free text/image → 3D: generate, rig, avatar-ify, and refine GLB models. No auth, no payment. [io.github.Misterio070/scanpayio.github.Misterio070/scanpay](/server/io-github-misterio070-scanpay) Code security scanner for AI agents. 45+ vulnerability patterns, AST analysis, Solana micropayments.