Pikasim MCP Server

PikaSim MCP Server

Buy eSIMs from an AI agent — no account, no email, no KYC. Anonymous data plans and real carrier phone numbers across 190+ countries, settled in crypto from a prepaid agent wallet.

PikaSim is a remote, hosted MCP server (Streamable HTTP). You don't run any code — just point your AI agent at the URL and it can search plans, check coverage, get pricing, and (with a funded agent wallet) purchase eSIMs autonomously.

• Browse (no auth): https://pikasim.com/mcp
• Purchase (OAuth): https://pikasim.com/mcp/wallet
• Transport: Streamable HTTP (JSON-RPC over HTTP POST)
• Docs: https://pikasim.com/mcp-docs
• Agent wallet: https://pikasim.com/agent-wallet
• Browsing needs no key. Purchasing connects a prepaid agent wallet via one-click OAuth (or an ak_live_ key on CLI clients).

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Quick start

Add PikaSim to your AI agent's MCP config:

{
  "mcpServers": {
    "pikasim": {
      "type": "streamable-http",
      "url": "https://pikasim.com/mcp"
    }
  }
}

That's it — your agent can now search data and phone-number eSIM plans, check country coverage, and get pricing for 190+ countries. No API key needed for browsing.

To purchase too, connect https://pikasim.com/mcp/wallet instead — it triggers a one-click OAuth flow where you authorize a free, prepaid agent wallet by pasting your wallet code (no key handling, no account, no email). See Authentication.

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Two product lines

Don't assume "eSIM" means data-only. PikaSim sells both:

1. Data eSIMs — anonymous data plans across 190+ countries, from $0.75. Discover with search_esim_packages / check_country_coverage; buy with purchase_esim.
2. Phone-number eSIMs — a real carrier phone number (not VoIP) with voice calls, SMS, and data. US plans give a real +1 number on AT&T and T-Mobile; global plans cover 157 countries. Discover with search_phone_plans; buy with purchase_phone_plan.

search_esim_packages and check_country_coverage return both lines in separate buckets. Package codes appear in [brackets] — pass them to the matching purchase tool.

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Setup guides

PikaSim is a remote MCP server at https://pikasim.com/mcp. The config key and steps differ per client.

Claude Desktop

Remote servers are added as Connectors, not via claude_desktop_config.json. Go to Settings → Connectors → Add custom connector. To browse, paste https://pikasim.com/mcp. To purchase, paste https://pikasim.com/mcp/wallet and click Connect — Claude opens a PikaSim page where you authorize a wallet by pasting your wallet code (one-click OAuth, no key in the URL).

Claude Code (CLI)

# Browse only
claude mcp add --transport http pikasim https://pikasim.com/mcp

# With an agent wallet (purchasing)
claude mcp add --transport http pikasim https://pikasim.com/mcp \
  --header "Authorization: Bearer ak_live_YOUR_KEY"

Cursor / Windsurf / other JSON-config clients

{
  "mcpServers": {
    "pikasim": {
      "type": "streamable-http",
      "url": "https://pikasim.com/mcp"
    }
  }
}

ChatGPT (custom connector)

Add a custom connector with URL https://pikasim.com/mcp to browse, or https://pikasim.com/mcp/wallet to purchase (the wallet URL triggers OAuth — authorize by pasting your wallet code).

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Tools

Public tools (no API key)

Authenticated tools (require an ak_live_ agent-wallet key)

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Authentication

Browsing is open at https://pikasim.com/mcp. To purchase, connect https://pikasim.com/mcp/wallet, which supports two auth methods:

1. OAuth (recommended, for app clients like Claude Desktop / ChatGPT): connecting the wallet URL triggers OAuth 2.1 (Dynamic Client Registration + PKCE). You're sent to a PikaSim consent page where you paste your wallet code to authorize. The client receives a revocable access token — never your wallet code or ak_live_ key. No account, no email, no KYC.
2. Bearer key (for CLI clients): send Authorization: Bearer ak_live_YOUR_KEY.

The plain https://pikasim.com/mcp URL is browse-only. Create a wallet and get your wallet code + key at https://pikasim.com/agent-wallet (save the wallet code; it's the only way back in).

Wallet, in brief

• Prepaid, crypto-funded balance (min deposit $10). Retail pricing.
• Fund via create_deposit (Bitcoin, Lightning, Monero, USDT, and 50+ altcoins) or at the wallet page.
• No personal account, email, or KYC required.

There's also a separate reseller program at https://pikasim.com/reseller — a B2B track with its own pk_live_ key and a 10% discount. Reseller keys also work on this MCP server at wholesale pricing.

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Example

// 1. Find data plans for Japan
{ "tool": "search_esim_packages", "arguments": { "country": "JP", "type": "data" } }

// 2. Get a real US phone number plan
{ "tool": "search_phone_plans", "arguments": { "country": "US" } }

// 3. Check your wallet, then buy (needs ak_live_ key)
{ "tool": "check_balance", "arguments": {} }
{ "tool": "purchase_esim", "arguments": { "packageCode": "PACKAGE_CODE_FROM_SEARCH" } }

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Rate limits & errors

• Public browsing is rate-limited per IP. Authenticated tools are scoped to your wallet.
• Errors return a clear message (e.g. insufficient balance → fund via create_deposit or the wallet page).
• Full reference: https://pikasim.com/mcp-docs

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About PikaSim

PikaSim is a privacy-first eSIM marketplace: no accounts, no email, no KYC, crypto settlement. The MCP server exposes the same catalog and ordering to AI agents.

• Website: https://pikasim.com
• MCP docs: https://pikasim.com/mcp-docs
• Agent wallet: https://pikasim.com/agent-wallet
• Agentic ordering guide: https://pikasim.com/agentic-esim-ordering

License

MIT — see LICENSE. This repository contains documentation for the hosted PikaSim MCP server; the server itself runs at https://pikasim.com/mcp.