Tethered Trust for builders is answering right now. Last checked 8 min ago. It exposes 12 tools.
Launch and keep agent tools working: MCP checks, registry publishing, x402 payment checks.
Uptime history
8 hours of history
8 hours agonow
100.0%
Uptime 24h
28 of 28 checks
12
Tools
read from the server
570 ms
Response time
average over 24h
open, no key
Access
streamable-http
Nothing serious here today
Today is the operative word: we check Tethered Trust for builders every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
run in your terminal
claude mcp add builders --transport http https://tetheredtrust.com/mcp/buildersSettings → Connectors → Add custom connector, then paste this address
https://tetheredtrust.com/mcp/builders~/.codex/config.toml
[mcp_servers.builders]
url = "https://tetheredtrust.com/mcp/builders".cursor/mcp.json
{
"mcpServers": {
"builders": {
"url": "https://tetheredtrust.com/mcp/builders"
}
}
}.vscode/mcp.json
{
"servers": {
"builders": {
"type": "http",
"url": "https://tetheredtrust.com/mcp/builders"
}
}
}Available tools 12
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
launch
launch_check
Call this after building or deploying an MCP server or paid agent API, or when its listings may be out of date: we check it works (as verify_mcp does), then look it up in the official MCP Registry (and whether the listed version is current), Glama, PulseMCP, the x402 Bazaar, npm and PyPI, plus its server card, llms.txt and robots.txt (Smithery, PulseMCP, mcp.so and Claude's directory are listed with links to check by hand). Returns a score, what's missing or stale, an ordered fix plan and a ready-to-publish server.json. Read-only.
launch_plan
For sellers: 30 days of official MCP Registry publishing on every new version, a daily listing watch (registry, Glama, x402 Bazaar, npm, PyPI, health) and daily payment checks of up to 10 x402 endpoints, with one signed webhook. $12 per 30 days; renew with plan_id.
launch_plan_status
Where a Launch Plan stands: listings, registry version and each paid endpoint's payment check. Free.
verify
verify_mcp
Call this before you recommend, install or rely on an MCP server, after deploying one, or when a connector seems broken: we connect as an MCP client, list its tools, check each has a usable input schema and description, confirm the tools you name exist, and optionally run one sample call on a read-only tool. Pass / fail / couldn't-verify per check with a signed receipt. Never signs in or calls tools that change things.
verify_page
Call this before you tell someone a web page, site or deploy is done or working, or before relying on another agent's "it's live": we open the public page in a separate browser (desktop or mobile) and check what you list. It loads; this text is visible; this link or button leads to this address; no script errors; no broken same-site links. Pass / fail / couldn't-verify per check, with a screenshot and a signed receipt. Read-only: no logins, forms or purchases.
enrich
enrich_catalog
For retailers and marketplaces (API key required): up to 50 products per call (SKU with title, URL or GTIN) in; each product's compatibility attributes out (standards it takes and provides, numeric limits, evidence level, freshness), ready to add to a product feed or UCP catalog so agents can match it to what shoppers own.
how
how_it_works
What Tethered Trust is, what it covers, where its data comes from, pricing and terms.
listing
listing_status
Where a watched MCP server stands right now: each directory's status, the latest changes, and when the watch ends. Free.
payment
check_payment_setup
Call this after building or changing a paid (x402) endpoint, or when agents' payments fail: we call it unpaid like a paying agent, read the 402, and check the payment request parses (v1 or v2), the token's EIP-712 domain (extra.name/version) matches the contract on-chain (the usual cause of 'invalid signature' payments), network id, amount, payTo, timeout, CORS headers for browser agents, resource URL, description and Bazaar discovery. Pass / warn / fail per check with exact fixes. Never pays.
publish
publish_to_registry
Call this to get an MCP server into the official MCP Registry (which Glama, PulseMCP and others import from) without mcp-publisher or DNS: first call with url returns a one-line file to host at https://<domain>/.well-known/mcp-registry-auth; once it's up, call again with publisher_id and we publish server.json under your domain's namespace, then re-publish every new version automatically for 90 days. $5, charged only when we publish. Remove the file to revoke.
reliability
reliability_score
Before paying an unfamiliar x402 API, look up its payment-readiness score (0-100) from our daily unpaid checks of the x402 Bazaar: how many of its endpoints would accept an agent's payment, and the common problems. Free.
watch
watch_listing
Call this after launching an MCP server or paid agent API to keep it findable: we run launch_check today and every day for 30 days, and tell your webhook (signed) when something changes: the server stops answering, the registry listing falls behind a release, a directory drops it, robots.txt starts blocking. $3 per 30 days; call again with watch_id to renew. Returns today's full launch check.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://tetheredtrust.com/mcp/builders | streamable-http | answering | 591 ms | 8 min ago |
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Tethered Trust for builders — questions
Answers built from our own checks of this server.
What can Tethered Trust for builders do?
It exposes 12 tools, read directly from the server on our last check. Among them: check_payment_setup, enrich_catalog, how_it_works, launch_check, launch_plan, launch_plan_status and 6 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
What is Tethered Trust for builders mostly used for?
Its tools cluster around launch and verify. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Tethered Trust for builders working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 28 of 28 checks got a reply (100.0%), average response time 570 ms. The bar chart above shows every period we have measured.
How do I connect Tethered Trust for builders?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Tethered Trust for builders need an API key?
No. Tethered Trust for builders completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 12 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Tethered Trust for builders?
It answers our handshake in 570 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.