Sell to people and AI agents: create products, a storefront, and USDC payment links from chat.
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io.github.Travisswop/swop is an MCP server that sell to people and AI agents: create products, a storefront, and USDC payment links from chat. Its tool list has not been published yet over http, requires no API key, and scores 87/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients - only the file and path differ.
{
"mcpServers": {
"io-github-travisswop-swop": {
"args": [
"-y",
"npm"
],
"command": "npx"
}
}
}Are you the author?
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Sell to people and AI agents: create products, a storefront, and USDC payment links from chat.
Run this in your terminal to verify the server starts. Then let us know if it worked - your result helps other developers.
npx -y 'npm' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories - click any category to see the underlying evidence.
Packing does not respect root-level ignore files in workspaces
### Impact `npm pack` ignores root-level `.gitignore` & `.npmignore` file exclusion directives when run in a workspace or with a workspace flag (ie. `--workspaces`, `--workspace=<name>`). Anyone who has run `npm pack` or `npm publish` with workspaces, as of [v7.9.0](https://github.com/npm/cli/releases/tag/v7.9.0) & [v7.13.0](https://github.com/npm/cli/releases/tag/v7.13.0) respectively, may be affected and have published files into the npm registry they did not intend to include. ### Patch - Up
Incorrect Permission Assignment for Critical Resource in NPM
An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.
Local Privilege Escalation in npm
Affected versions of `npm` use predictable temporary file names during archive unpacking. If an attacker can create a symbolic link at the location of one of these temporary file names, the attacker can arbitrarily write to any file that the user which owns the `npm` process has permission to write to, potentially resulting in local privilege escalation. ## Recommendation Update to version 1.3.3 or later.
npm CLI exposing sensitive information through logs
Versions of the npm CLI prior to 6.14.6 are vulnerable to an information exposure vulnerability through log files. The CLI supports URLs like `<protocol>://[<user>[:<password>]@]<hostname>[:<port>][:][/]<path>`. The password value is not redacted and is printed to stdout and also to any generated log files.
npm Vulnerable to Global node_modules Binary Overwrite
Versions of the npm CLI prior to 6.13.4 are vulnerable to a Global node_modules Binary Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a `serve` binary, any subsequent installs of packages that also create a `serve` binary would overwrite the first binary. This will not overwrite system binaries but only binaries put into the global node_modules directory. This b
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Sell to people and AI agents, paid in USDC, from any MCP client.
Connect: https://mcp.swopme.co/mcp/commerce (Streamable HTTP)
Public tools need no account; account tools use OAuth 2.1 (dynamic client registration, PKCE).
Registry: io.github.Travisswop/swop
checkout.paid, payout.released)Sellers are agent-payable in USDC as soon as they add a product, with no verification step.
Setup for Claude, ChatGPT, Cursor and Grok: docs/add-swop-to-your-ai.md
claude mcp add --transport http swop https://mcp.swopme.co/mcp/commerce
/mcp/commerce)Public, no account:
swop_search_identities, swop_lookup_identity: swop.id → profile + wallet addressesswop_get_store: any seller's products with USDC prices and an x402 buy URL for eachswop_get_product_link: the one link that sells a product to people and agentsSell (scope commerce.write):
swop_create_product, swop_update_product, swop_list_my_products, swop_feature_productCheckout on your own site (scope commerce.write):
swop_create_checkout, swop_get_checkoutswop_register_webhook, swop_list_webhooks, swop_test_webhook, swop_remove_webhook
(HMAC-signed checkout.paid / payout.released)swop_register_embed_origin, swop_list_embed_origins, swop_remove_embed_originSmartSite storefront (scope smartsite.write):
swop_get_my_smartsite, swop_update_my_smartsite, swop_add_link, swop_remove_linkswop_create_feed_post: public post as the linked SmartSite, caption + up to 4 images.
Two-step: preview returns a sealed previewId; confirm resends the identical content,
and each preview publishes at most once. The backend hosts the images; this server
uploads nothing.Account (scopes profile.read, wallet.read):
swop_get_my_profile, swop_get_my_orders, swop_get_my_balances,
swop_list_my_tokens (store-credit "Bucks")The commerce endpoint has no tools that send funds. Its OAuth metadata
(/.well-known/oauth-protected-resource/mcp/commerce) advertises only
profile.read wallet.read smartsite.write commerce.write.
/mcp)https://mcp.swopme.co/mcp stays live for existing Swop users. It is the
commerce set plus wallet and market tools (sends, x402 payments, swaps,
perps and prediction-market data); the money-moving ones need the owner to
turn on AI spending, with caps, in the Swop app. New setups should use /mcp/commerce.
The same OAuth link works on both endpoints.
npm install
npm run dev # Streamable HTTP on :8788 (POST /mcp and /mcp/commerce), stateless JSON mode
npm run dev:stdio # stdio transport for local clients
npm run build && npm start
npm run smoke # endpoint smoke test (in-process); `npm run smoke -- https://mcp.swopme.co` for prod
Env: SWOP_API_BASE (default https://apps.apiswop.co), PREDICTIONS_API_BASE
(default https://polymarket.apiswop.co), PUBLIC_BASE_URL (default
https://mcp.swopme.co), PORT (default 8788).
Local test with Claude Code:
claude mcp add swop --transport http http://localhost:8788/mcp/commerce
Stateless Vercel function (project swop-mcp), served at mcp.swopme.co
(never swop.tech). Deployed only with vercel deploy --prod; a git push does
not ship it. Registry entry: server.json, published with mcp-publisher publish.
The AI-assistant edge of the platform. Exposes Swop to anything that speaks MCP, reaching the same API every first-party client uses.
graph LR
ai["Claude / ChatGPT / Cursor"] --> mcp["<b>swop-mcp</b>"]
mcp --> api["swop-app-backend<br/>apps.apiswop.co"]
The identity rule that