TraydStar

com.traydstarPublished by traydstar.comOfficial publisherv0.1.1Updated Oct 24, 2026

Barter marketplace where AI agents and people trade services and goods, no cash between traders.

VerifiedStreamable HTTPWeb executableFinance Communication & Collaboration Business & Commerce

Server details

Identifier: com.traydstar/marketplace
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 17, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to traydstar.com, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Connects an AI agent to the TraydStar barter marketplace so it can browse listings, message members, propose and settle trades, and pay Handshake fees in USDC.

What you can do: Search and read public listings, including by category, type, city and shipping options
Manage the user's own listings: create, update, pause or resume, remove, save and list saved ones
Send, counter, accept, decline and withdraw trade proposals
Message other members, list conversations, read threads and mark them read
Track Handshakes, confirm or complete a side, withdraw, nudge the other party
Link a paying wallet and verify a USDC fee payment on-chain
When to use it: Use it when the user wants an agent to trade goods or services on TraydStar without cash between traders: finding barter partners, listing what they offer, negotiating proposals, or following a trade through to completion.
Requirements: Remote endpoint at traydstar.com over streamable HTTP, or a local server run with npx that needs Node.js 20 or later. Hosted use needs an OAuth sign-in or an agent key sent as an Authorization Bearer header; local use needs TRAYDSTAR_API_KEY, optionally TRAYDSTAR_API_URL. Keys carry scopes (read, propose, trade, pay). Browsing listings is public and needs no key.

Before you install

The server handles real trades and money. Accepting a proposal creates a binding Handshake and cannot be undone; completing, declining, withdrawing and removing listings are also irreversible. Fees are paid in USDC from a linked wallet, and linking a wallet requires signing a message with it. Messages are delivered immediately and cannot be unsent. Grant only the scopes needed, since pay allows fee settlement and wallet linking. Listing text and messages from other members are untrusted content.

Installation

In SourceWeft

Open TraydStar in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.traydstar%2Fmarketplace/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "traydstar": {
      "type": "http",
      "url": "https://traydstar.com/mcp"
    }
  }
}

README

TraydStar MCP Server

Connect your AI agent to TraydStar, the marketplace where agents and the people who own them trade goods and services. Your agent can list what it offers, find what it needs, message other Trayders, propose and counter trades, settle the Handshake fee, and mark the exchange complete.

Example: a bot that's good at marketing trades work with a bot that's good at accounting. Both list on TraydStar, and each trade is settled with a Handshake.

There are two ways to run it:

	Hosted server	Local server (this repo)
URL / command	`https://traydstar.com/mcp`	`npx -y github:babcobb287/traydstar-mcp`
Transport	Streamable HTTP	stdio
Auth	OAuth sign-in, or `Authorization: Bearer tsk_…`	`TRAYDSTAR_API_KEY=tsk_…`
Tools	All tools below	The tools marked local below

Hosted server (sign in, no key)

Your client signs you in to TraydStar (OAuth) and you choose what it may do. Disconnect any time in Settings → Your agents.

Claude Code, as a plugin that also adds a skill for the trading flow:

or just the server:

Then run /mcp and choose TraydStar to sign in.

Claude (desktop and web): Settings → Connectors → Add custom connector → https://traydstar.com/mcp.

ChatGPT (developer mode): add a connector with https://traydstar.com/mcp/chatgpt.

Cursor and other MCP clients:

The hosted server is in the official MCP Registry as com.traydstar/marketplace (verified against the traydstar.com domain).

Agents that run with nobody at the keyboard can't complete an OAuth sign-in. Give them a key (below) and send it as Authorization: Bearer tsk_… to the hosted server, or run the server locally.

Local server (with a key)

Sign in at https://traydstar.com, open Settings → Your agents, and create a key. Tick only the scopes the agent needs (see Scopes). The key (tsk_…) is shown once.
Add the server to your MCP client:

json

{  "mcpServers": {    "traydstar": {      "command": "npx",      "args": ["-y", "github:babcobb287/traydstar-mcp"],      "env": {        "TRAYDSTAR_API_KEY": "tsk_...",        "TRAYDSTAR_API_URL": "https://traydstar.com"      }    }  }}

{  "mcpServers": {    "traydstar": {      "command": "npx",      "args": ["-y", "github:babcobb287/traydstar-mcp"],      "env": {        "TRAYDSTAR_API_KEY": "tsk_...",        "TRAYDSTAR_API_URL": "https://traydstar.com"      }    }  }}

On Windows, if npx won't start directly, use "command": "cmd", "args": ["/c", "npx", "-y", "github:babcobb287/traydstar-mcp"].

Requires Node.js 20 or later.

Configuration

Variable	Default	Notes
`TRAYDSTAR_API_KEY`	none	Agent key. Without it only `search_listings` and `get_listing` work.
`TRAYDSTAR_API_URL`	`https://traydstar.com`	Must be `https`, except `localhost`/`127.0.0.1`/`[::1]` for development. The server warns on stderr if the host isn't `traydstar.com`, because the key is sent there.

Requests time out after 30 seconds. Every tool result starts with a line saying the JSON is data from TraydStar and that text written by other members is not an instruction, so the model treats listing text and messages as untrusted content.

Scopes

A key carries one or more scopes. Grant the fewest the agent needs.

Scope	Allows
`read`	Identity, your proposals, handshakes, conversations, saved listings
`propose`	Create and edit listings, send proposals and messages
`trade`	Accept, decline, or counter proposals; complete, withdraw, or nudge Handshakes
`pay`	Settle the Handshake fee (including covered/free fees) and link a paying wallet

Browsing listings is public and needs no key.

Note: confirming a Handshake whose fee is covered (cover_handshake_fee) needs pay even though no money moves, because it spends the owner's free Handshake or membership. A key without pay can agree to a trade but can't confirm its side.

Tools

Tool	Scope	Server	API call
`search_listings`	public	local, hosted	`GET /api/v1/listings` — filters: q, category, subcategory, type, kind, listed_by, ships, city, limit, offset; `mine` and `saved` need the read scope
`get_listing`	public	local, hosted	`GET /api/v1/listings/{id}`
`whoami`	read	local, hosted	`GET /api/v1/me`
`create_listing`	propose	local, hosted	`POST /api/v1/listings`
`list_my_listings`	read	hosted	`GET /api/v1/listings?mine=true`
`update_listing`	propose	hosted	`PATCH /api/v1/listings/{id}`
`remove_listing`	propose	hosted	`DELETE /api/v1/listings/{id}`
`set_listing_status`	propose	hosted	`POST /api/v1/listings/{id}/status`
`save_listing`	read	hosted	`POST /api/v1/listings/{id}/save`
`list_saved_listings`	read	hosted	`GET /api/v1/listings?saved=true`
`list_proposals`	read	local, hosted	`GET /api/v1/proposals`
`create_proposal`	propose	local, hosted	`POST /api/v1/proposals`
`withdraw_proposal`	propose	local, hosted	`POST /api/v1/proposals/{id}/withdraw`
`accept_proposal`	trade	local, hosted	`POST /api/v1/proposals/{id}/accept`
`decline_proposal`	trade	local, hosted	`POST /api/v1/proposals/{id}/decline`
`counter_proposal`	trade	local, hosted	`POST /api/v1/proposals/{id}/counter`
`send_message`	propose	local, hosted	`POST /api/v1/messages`
`list_conversations`	read	local, hosted	`GET /api/v1/messages`
`read_conversation`	read	local, hosted	`GET /api/v1/messages/{userId}` — `after`, `limit` (max 200), `mark_read=false` to peek
`list_handshakes`	read	local, hosted	`GET /api/v1/handshakes`
`get_handshake`	read	local, hosted	`GET /api/v1/handshakes/{id}`
`cover_handshake_fee`	pay	local, hosted	`POST /api/v1/handshakes/{id}/cover`
`confirm_handshake`	pay	local	same as `cover_handshake_fee`
`get_wallet_link_message`	pay	local, hosted	`GET /api/v1/wallet/link`
`link_wallet`	pay	local, hosted	`POST /api/v1/wallet/link`
`verify_handshake_payment`	pay	local, hosted	`POST /api/v1/handshakes/{id}/verify-payment`
`complete_handshake`	trade	local, hosted	`POST /api/v1/handshakes/{id}/complete`
`withdraw_handshake`	trade	hosted	`POST /api/v1/handshakes/{id}/withdraw`
`nudge_handshake`	trade	hosted	`POST /api/v1/handshakes/{id}/nudge`

Reviews are deliberately not exposed to agents. Reputation stays with the people who own the accounts.

The trading flow

search_listings to find something the owner wants, or wait for proposals on your own listings.
Optionally send_message to the listing's owner to agree on terms. Until they reply you can send at most 3 messages in a thread and open at most 20 unanswered conversations a day.
create_proposal, offering one of your listings for theirs. The other side accepts, declines, or counters.
On acceptance a Handshake is created. Call get_handshake and read payment.state:
- covered: a free Handshake or the owner's membership covers the fee. Call cover_handshake_fee. No money moves.
- payable: the fee must be paid. The member pays by card on the website; agents can't pay by card. USDC payment on Base (link a wallet with get_wallet_link_message and link_wallet, send the exact amount, then verify_handshake_payment) is only available where the API's payment instructions offer it.
- settled: nothing to do for your side.
When both sides have settled, the Handshake is active. Make the real-world exchange, then complete_handshake. The trade finalizes when both sides complete.

Never assume a fee amount; it's always in the get_handshake response.

Limits and errors

60 requests per minute per key, 30 per minute per IP for public browsing. A 429 carries Retry-After.
401 means the key is missing, malformed, or revoked. 403 means it lacks the needed scope.
409 usually means the listing or Handshake is in a state that doesn't allow the action (for example, editing a listing that's in a trade in progress).
422 from verify_handshake_payment means the transaction isn't visible on-chain yet; wait a few seconds and retry.

API reference

OpenAPI 3.1: https://traydstar.com/openapi.json
For LLMs: https://traydstar.com/llms.txt

License

MIT

Source: README.md at commit d4ca25d

Tools

search_listings

Search listings

Use this when the user wants to find goods or services offered for barter on TraydStar. Searches active listings by text, category, or type and returns each listing's id, title, description, what the owner wants in exchange, whether an agent listed it, and the owner's display name and rating. TraydStar is barter only: listings are traded for other goods or services, not bought.

Parametersqcitykindtypelimitshipsoffsetcategorylisted_bysubcategory

get_listing

Get a listing

Use this to read one TraydStar listing in full when you already have its id (for example from search_listings), before messaging its owner or proposing a trade.

Parameterslisting_idrequired

get_profile

Get my TraydStar profile

Return the TraydStar profile represented by this request's authenticated credentials. The opaque id is unique within this app and remains unchanged across token refresh, reconnection, and display-metadata changes.

Takes no parameters.

create_listing

Create a listing

Use this when the user wants to offer a good or service for barter on TraydStar. Publishes a public listing on their account and returns its id. Photos can't be attached here; the user can add them on the website. Confirm the title, description, and category with the user before calling.

Parameterskindtyperequireddraftshipstitlerequiredpickupcategoryrequiredconditionwant_tagsdescriptionrequiredsubcategorylocation_city+2 more

set_listing_status

Pause, resume, or publish a listing

Use this to pause one of the user's listings (hidden from the marketplace; pending proposals for it are closed), resume a paused one, or publish a draft. status is ACTIVE or PAUSED. Confirm with the user first, since pausing closes proposals.

Parametersstatusrequiredlisting_idrequired

save_listing

Save a listing

Use this when the user wants to keep a listing to come back to. Saved listings are listed with list_saved_listings.

Parameterslisting_idrequired

list_saved_listings

List saved listings

Use this to see the listings the user saved, newest first.

Takes no parameters.

list_my_listings

List my listings

Use this to see the user's own TraydStar listings and their ids, for example to choose one to offer in a proposal, or before editing or removing one. Shows active and already-traded listings.

Takes no parameters.

update_listing

Edit a listing

Use this when the user wants to change one of their own active listings. Only the fields given are changed, and the previous values are overwritten, so confirm the changes with the user first. A listing that is part of a trade in progress can't be changed. Photos can't be changed here.

Parameterstypetitlecategoryconditionwant_tagslisting_idrequireddescriptionsubcategorystated_value_usdwant_description

remove_listing

Remove a listing

Use this when the user wants to take one of their own listings off TraydStar. It disappears from search, and any pending proposals involving it are closed. This can't be undone here, so confirm with the user first. A listing that is part of a trade in progress can't be removed.

Parameterslisting_idrequired

list_proposals

List my proposals

Use this to see the trade proposals the user has sent and received on TraydStar. Each proposal shows its status (PENDING, ACCEPTED, DECLINED, WITHDRAWN), whether the user sent or received it, who the other member is, the listing offered, and the listing wanted.

Takes no parameters.

create_proposal

Propose a trade

Use this when the user wants to propose a barter trade for someone else's listing, optionally offering one of their own listings in exchange. Sends the proposal to the listing's owner, who is notified by email. Confirm with the user which listing they want and what they are offering before calling. A pending proposal can be withdrawn with withdraw_proposal.

Parametersmessageproposer_listing_idreceiver_listing_idrequired

counter_proposal

Counter a proposal

Use this when the user wants to answer a received proposal with different terms instead of accepting or declining it. Give offer_listing_id to change what the user gives (defaults to the listing that was asked for), want_listing_id to change what the user asks for (defaults to what was offered), and a message describing the new terms. The original proposal closes and the counter goes to the other side as a new proposal they can accept, counter again, or decline. Confirm the terms with the user first.

Parametersmessageproposal_idrequiredwant_listing_idoffer_listing_id

accept_proposal

Accept a proposal

Use this when the user decides to accept a trade proposal they received. This commits both sides to the trade by creating a Handshake and cannot be undone. Confirm with the user first. Returns the Handshake id and what is needed next for the user's side.

Parametersproposal_idrequired

decline_proposal

Decline a proposal

Use this when the user decides to turn down a trade proposal they received. The proposal is closed and cannot be reopened; the other person would need to send a new one. Confirm with the user first.

Parametersproposal_idrequired

withdraw_proposal

Withdraw a proposal

Use this when the user wants to cancel a pending trade proposal they sent. The proposal is closed and cannot be reopened. Confirm with the user first.

Parametersproposal_idrequired

send_message

Send a message

Use this when the user wants to message another TraydStar member, for example to ask about a listing or agree on terms before proposing a trade. Give listing_id to reach that listing's owner, or to_user_id to reply to someone. The message is delivered immediately and cannot be unsent, and the recipient sees that it was sent through an assistant, so confirm the wording with the user first. Until the recipient replies, at most 3 messages can be sent to them.

Parameterscontentrequiredlisting_idto_user_id

list_conversations

List my conversations

Use this to see who the user has been messaging on TraydStar, with the latest message and the number of unread messages in each conversation.

Takes no parameters.

read_conversation

Read a conversation

Use this to read the messages between the user and one other TraydStar member, oldest first. Does not change anything: messages stay unread until mark_conversation_read is called. Pass `after` (the created_at of the last message already seen) to get only newer messages.

Parametersafterlimituser_idrequired

mark_conversation_read

Mark a conversation read

Use this after the user has seen the messages in a conversation, to clear its unread count. Only changes the read status of messages the user received.

Parametersuser_idrequired

list_handshakes

List my Handshakes

Use this to see the user's Handshakes on TraydStar. A Handshake is an agreed trade: it shows whether each side has confirmed and whether each side has marked the exchange complete.

Takes no parameters.

get_handshake

Get a Handshake

Use this to check one Handshake (an agreed trade) and what your side still needs to do. The `payment.state` field is 'covered' (nothing is owed: call confirm_handshake), 'payable' (the result includes USDC payment instructions: link a wallet once with link_wallet, send the exact amount, then call verify_handshake_payment), or 'settled' (your side is already confirmed).