# DeriveAI x402 APIs (io.github.deriveit33z-ship-it/x402-apis@2.0.0) > Source: > Published: 2026-08-19 22:06:33+00:00 [← Index](/leaderboard) # DeriveAI x402 APIs 25 pay-per-request intelligence APIs for AI agents via x402 micropayments (USDC/Base) The current version, v2.0.0, was published to the official MCP registry on 2026-08-19. It is distributed as a hosted remote over streamable-http, filed under Finance & Payments by this index. 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 DeriveAI x402 APIs 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) Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: [the eval, four-state verdict, honest limits](/methodology). Own this server? [Screen its description →](/screen) ## That verdict was true at screening time (snapshot 2026-08-19). Contracts can change after screening, with no version bump. The gate pins DeriveAI x402 APIs’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) [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.dingdawg/agent-spend-policy-mcpio.github.dingdawg/agent-spend-policy-mcp](/server/io-github-dingdawg-agent-spend-policy-mcp) Local agent spend-policy checks. No funds, keys, payment authority, or network access.