{
  "slug": "io-github-nirholas-x402-bridge",
  "name": "io.github.nirholas/x402-bridge",
  "title": "x402 Universal Payer",
  "description": "Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.",
  "version": "1.0.2",
  "publishedAt": "2026-08-19T22:05:09.20382Z",
  "updatedAt": "2026-08-19T22:05:09.20382Z",
  "repoUrl": "https://github.com/nirholas/three.ws",
  "websiteUrl": "https://three.ws",
  "namespace": {
    "type": "github",
    "owner": "nirholas"
  },
  "kind": "local",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@three-ws/mcp-bridge",
      "version": "1.0.2",
      "transport": "stdio",
      "runtimeHint": "npx"
    }
  ],
  "remotes": [],
  "envVars": [
    {
      "name": "MCP_BRIDGE_EVM_PRIVATE_KEY",
      "isSecret": true,
      "isRequired": false,
      "description": "0x-prefixed 32-byte hex private key that funds USDC payments on EVM chains (Base, Arbitrum, …). At least one of the EVM/SVM keys is required. Treat like cash — use a dedicated low-balance wallet."
    },
    {
      "name": "MCP_BRIDGE_SVM_PRIVATE_KEY",
      "isSecret": true,
      "isRequired": false,
      "description": "Solana secret key that funds USDC payments: base58 64-byte secret key (Phantom / solana-keygen format) or a JSON array of 64 integers. At least one of the EVM/SVM keys is required. Treat like cash."
    },
    {
      "name": "MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC",
      "isSecret": false,
      "isRequired": false,
      "description": "Per-call spending cap in atomic units (USDC has 6 decimals). Payments above this abort with a clear reason."
    },
    {
      "name": "MCP_BRIDGE_MAX_TOTAL_ATOMIC",
      "isSecret": false,
      "isRequired": false,
      "description": "Cumulative session spending ceiling in atomic units. Once total spend would exceed it, further payments abort until restart."
    },
    {
      "name": "MCP_BRIDGE_ALLOWED_PAYTO",
      "isSecret": false,
      "isRequired": false,
      "description": "Comma-separated payee allowlist. When set, any payment whose payTo address is not listed is refused."
    },
    {
      "name": "MCP_BRIDGE_ALLOWED_HOSTS",
      "isSecret": false,
      "isRequired": false,
      "description": "Comma-separated hostname allowlist for outbound paid requests. When set, any other host is refused before a request is signed."
    },
    {
      "name": "MCP_BRIDGE_ALLOW_HTTP",
      "isSecret": false,
      "isRequired": false,
      "description": "Set to 1 to allow http:// targets (local development only). https is enforced otherwise."
    },
    {
      "name": "MCP_BRIDGE_DISCOVER_LIMIT",
      "isSecret": false,
      "isRequired": false,
      "description": "Max number of x402 Bazaar resources to register as dynamic tools at startup. Set 0 to disable discovery."
    },
    {
      "name": "MCP_BRIDGE_BAZAAR_URL",
      "isSecret": false,
      "isRequired": false,
      "description": "x402 Bazaar discovery endpoint. Override to point at a self-hosted or alternative bazaar."
    },
    {
      "name": "MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER",
      "isSecret": false,
      "isRequired": false,
      "description": "How many request-amounts to deposit at once when opening an EVM batch-settlement channel."
    },
    {
      "name": "MCP_BRIDGE_MAX_DEPOSIT_ATOMIC",
      "isSecret": false,
      "isRequired": false,
      "description": "Hard cap in atomic units on a single batch-settlement channel deposit or top-up."
    },
    {
      "name": "X402_MCP_BRIDGE_CHANNELS_DIR",
      "isSecret": false,
      "isRequired": false,
      "description": "Directory for persisted batch-settlement channel state (survives client restarts)."
    },
    {
      "name": "RPC_URL_8453",
      "isSecret": false,
      "isRequired": false,
      "description": "Per-chain RPC override, one variable per chain id (RPC_URL_<chainId>, e.g. RPC_URL_8453 for Base). Defaults to viem's public RPC for that chain."
    }
  ],
  "category": "search-web",
  "subcategory": "more",
  "company": "",
  "categoryAuto": true,
  "checks": [
    {
      "id": "source-linked",
      "label": "Source repository linked",
      "result": "pass",
      "detail": "https://github.com/nirholas/three.ws"
    },
    {
      "id": "version-pinned",
      "label": "Version pinned",
      "result": "pass",
      "detail": "Every package has an explicit version"
    },
    {
      "id": "secrets-requested",
      "label": "Secrets requested",
      "result": "info",
      "detail": "Asks for 2 secrets: MCP_BRIDGE_EVM_PRIVATE_KEY, MCP_BRIDGE_SVM_PRIVATE_KEY"
    },
    {
      "id": "known-registry",
      "label": "Known package registry",
      "result": "pass",
      "detail": "All packages come from npm, PyPI, OCI, NuGet or MCPB"
    },
    {
      "id": "namespace",
      "label": "Namespace ownership",
      "result": "info",
      "detail": "Name verified via GitHub account nirholas"
    },
    {
      "id": "meta-text",
      "label": "Registry text aimed at the AI",
      "result": "pass",
      "detail": "Description and settings contain no hidden characters or instructions to the AI"
    },
    {
      "id": "install-scripts",
      "label": "Install scripts",
      "result": "pass",
      "detail": "@three-ws/mcp-bridge@1.0.2 runs nothing at install"
    },
    {
      "id": "code-flags",
      "label": "Code red flags",
      "result": "pass",
      "detail": "Read 10 files in @three-ws/mcp-bridge@1.0.2: no obfuscation, encoded execution, credential reads or data-collection endpoints found"
    },
    {
      "id": "ai-text",
      "label": "Text aimed at the AI",
      "result": "pass",
      "detail": "No hidden characters or instructions to the AI in 10 files, including comments and the README"
    }
  ],
  "scannedAt": "2026-10-29",
  "level": "Scanned",
  "install": [
    {
      "label": "Claude Desktop (npm)",
      "kind": "claude_desktop_json",
      "text": "{\n  \"mcpServers\": {\n    \"x402-bridge\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"@three-ws/mcp-bridge@1.0.2\"\n      ]\n    }\n  }\n}"
    }
  ],
  "curated": true,
  "stars": 256,
  "archived": false,
  "pushedAt": "2026-10-28T21:55:53Z",
  "health": {
    "score": 76,
    "parts": {
      "popularity": 0.45650732632235413,
      "activity": 1,
      "issues": 0.8181818181818182,
      "security": 1
    },
    "fail": 0,
    "warn": 0,
    "raw": {
      "stars": 262,
      "forks": 69,
      "downloads": 71,
      "hn": {
        "n": 0,
        "pts": 0,
        "t": []
      },
      "issuesOpen": 6,
      "issuesClosed": 27,
      "prsMerged": 233,
      "commits90": 7107,
      "release": "2026-10-11T01:09:28Z",
      "pushed": "2026-10-28T21:55:53Z",
      "growth": null,
      "growthDays": null,
      "archived": false
    },
    "at": "2026-10-31T07:35:52.424Z"
  },
  "icon": "/icons/s/io-github-nirholas-x402-bridge.svg"
}