Navi X402 Mcp

io.github.mobileappbyharisPublished by GitHub account mobileappbyharisv1.0.1Updated Oct 24, 2026

Paid agent tools, zero API keys: crypto, weather, translation, web intel, x402 discovery (USDC/Base)

VerifiedSTDIODesktop onlyWeb Search & ScrapingFinanceAI & ML

Overview

AI-generated overview

Local MCP server that gives an assistant pay-per-call tools for crypto prices, weather, translation, web analysis and x402 service discovery, paid in USDC on a

What you can do
Discover and rank x402 services for a task, and list the live catalog of available paid tools dynamically from the Navi catalog source. Retrieve crypto prices with 7d/30d change and all-time-high context, plus structured AI market reports. Get forecasts and air quality for a location, and translate text with BCP-47 normalization and formality options. Analyze web pages for summaries, entities and sentiment, inspect page structure and link taxonomy, and read OpenGraph/Twitter card metadata. Read shared Google Sheets as typed JSON and get timezone-aware time with DST signals.
When to use it
Useful when an assistant needs live crypto, weather, translation or web-page data without signing up for separate API keys, and when you are willing to pay small per-call fees from a funded wallet. Also handy for exploring which x402 services exist for a given task.
Requirements
Runs locally via npx (Node.js). Needs a wallet funded with USDC on Base mainnet and the X402_PRIVATE_KEY environment variable holding that wallet's private key. MAX_PRICE_USDC optionally sets the per-call price ceiling (default 0.05); NAVI_CATALOG_URL can point to an alternative catalog. Network access is required for calls and on-chain settlement.
Before you install
Requires supplying X402_PRIVATE_KEY, the private key of a wallet holding real funds; anyone with it controls that wallet, so use a dedicated low-balance wallet. Every tool call spends USDC on Base mainnet, with prices from about $0.001 to $0.02 per call; MAX_PRICE_USDC caps the per-call price but not total spending. Requests and page URLs are sent to third-party services and settlement goes through the Coinbase facilitator.

Installation

In SourceWeft

  1. Open Navi X402 Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

navi-x402-mcp

MCP server that gives your AI agent paid superpowers with zero API keys: live crypto prices, weather + air quality, translation, AI market reports, web page intelligence, Google Sheets reading, URL previews — and navi_x402_scout, which finds the best x402 service in the ecosystem for any task.

Every call is paid per-request in USDC on Base via the x402 protocol (prices: $0.001–$0.02). No accounts, no API keys, no subscriptions: your agent's wallet pays only for what it uses.

Setup

  1. Fund a wallet with a few USDC on Base mainnet (a dollar goes a long way).
  2. Add to your MCP client config (Claude Desktop, Cursor, etc.):
json
{  "mcpServers": {    "navi-x402": {      "command": "npx",      "args": ["-y", "navi-x402-mcp"],      "env": {        "X402_PRIVATE_KEY": "0x<private key of the paying wallet>",        "MAX_PRICE_USDC": "0.05"      }    }  }}

Tools

Tools are generated dynamically from the live Navi catalog — new endpoints appear automatically. Current highlights:

ToolWhat it doesPrice
navi_x402_scoutTop-3 x402 services for a task, ranked by real 30-day usage$0.005
navi_crypto_pricesLive prices, 7d/30d change, ATH context (CoinGecko)$0.001
navi_market_reportStructured AI crypto market analysis$0.02
navi_weatherForecast + air quality for any location$0.001
navi_translateTranslation with BCP-47 normalization + formality$0.005
navi_web_intelligenceAI page analysis: summary, entities, sentiment$0.005
navi_page_contextPage structure, link taxonomy, repo metadata$0.005
navi_google_sheetsRead any shared Google Sheet as typed JSON$0.003
navi_url_previewOpenGraph/Twitter card metadata$0.001
navi_timestampTimezone-aware time with DST/week signals$0.001

Safety

  • MAX_PRICE_USDC (default 0.05) hard-caps the per-call price the server will ever authorize.
  • The private key never leaves your machine: it signs EIP-3009 transfer authorizations locally; settlement happens on-chain via the Coinbase facilitator.
  • Without X402_PRIVATE_KEY, tools are listed and explain how to enable payments instead of failing silently.

Env reference

VarDefaultPurpose
X402_PRIVATE_KEY—Paying wallet (USDC on Base mainnet)
MAX_PRICE_USDC0.05Per-call price ceiling
NAVI_CATALOG_URLNavi public catalogAlternative catalog source

MIT — built by Navi.

Source: README.md at commit 19b0782

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.1LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts