CoachSync
REMOTE · MCP.COACHSYNC.IO · SCANNED SEP 24
Barbell strength training tools for AI assistants. Warmup, plate loading, and LP.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security66
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability70
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 545 tokens (~181/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities40
- Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail
How do I install the CoachSync MCP server?
CoachSync is a hosted endpoint at https://mcp.coachsync.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.coachsync.io
claude mcp add --transport http io-coachsync-coachsync-mcp 'https://mcp.coachsync.io/mcp'
{
"mcpServers": {
"io-coachsync-coachsync-mcp": {
"url": "https://mcp.coachsync.io/mcp"
}
}
} {
"servers": {
"io-coachsync-coachsync-mcp": {
"type": "http",
"url": "https://mcp.coachsync.io/mcp"
}
}
} [mcp_servers.io-coachsync-coachsync-mcp] url = "https://mcp.coachsync.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-coachsync-coachsync-mcp": {
"type": "remote",
"url": "https://mcp.coachsync.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-coachsync-coachsync-mcp --url 'https://mcp.coachsync.io/mcp' --transport streamable-http
mcp_servers:
io-coachsync-coachsync-mcp:
url: "https://mcp.coachsync.io/mcp" {
"McpServers": {
"io-coachsync-coachsync-mcp": {
"Transport": "http",
"Url": "https://mcp.coachsync.io/mcp"
}
}
} assistant mcp add io-coachsync-coachsync-mcp -t streamable-http -u 'https://mcp.coachsync.io/mcp'
{
"mcpServers": {
"io-coachsync-coachsync-mcp": {
"type": "http",
"url": "https://mcp.coachsync.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Aug 26 79
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 24 Sept 2026 · Probed https://mcp.coachsync.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=coachsync.io | CN=WE1,O=Google Trust Services,C=US | 28 Jul 2026 | 26 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | ecf73818a951b07b0ecce8cfef7cc41f |
| SANs: coachsync.io, mcp.coachsync.io, *.mcp.coachsync.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of mcp.coachsync.io. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| coachsync.io. | present | 2371 | 13 | Verified |
| mcp.coachsync.io. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.coachsync.io/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.coachsync.io/mcp | Served over HTTP | 200 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
novice_lp_generator ~254
Generate a structured 4-week novice linear progression program for a new or early-intermediate barbell trainee. Based on the Starting Strength model: squat every session, alternating press/bench, deadlift progressing to power cleans. Takes lifter profile (sex, bodyweight, age, training days) and optional starting weights. Returns a week-by-week program with progression scheme and coaching notes. Powered by CoachSync.io.
| Name | Type | Req | Description |
|---|---|---|---|
| age | number | yes | Lifter's age in years |
| bodyweightLb | number | yes | Lifter's bodyweight in pounds |
| sex | string | yes | Biological sex, used for estimating starting weights and progression rates |
| startingBench | number | – | Optional starting bench work weight. If omitted, estimated from bodyweight. |
| startingDeadlift | number | – | Optional starting deadlift work weight. If omitted, estimated from bodyweight. |
| startingPress | number | – | Optional starting press work weight. If omitted, estimated from bodyweight. |
| startingSquat | number | – | Optional starting squat work weight. If omitted, estimated from bodyweight. |
| trainingDays | number | – | Training days per week. 3 is standard, 2 is an alternative for recovery-limited trainees. |
No output schema declared.
No examples provided.
plate_loader ~127
Calculate which plates to load on each side of the barbell to reach a target weight. Supports custom bar weights and custom plate inventories for home gyms. Powered by CoachSync.io.
| Name | Type | Req | Description |
|---|---|---|---|
| availablePlates | array | – | Optional list of available plate denominations. Defaults to standard plates [45, 25, 10, 5, 2.5]. |
| barWeight | number | – | Bar weight. Defaults to 45 lb. |
| targetWeight | number | yes | The total target barbell weight (bar + plates) |
| unit | string | – | Weight unit. Defaults to lb. |
No output schema declared.
No examples provided.
warmup_calculator ~164
Calculate a barbell warmup ramp for any lift. Returns a structured set of warmup sets leading up to the work weight, with decreasing reps as weight increases. Based on standard barbell warmup methodology used in Starting Strength coaching. Powered by CoachSync.io.
| Name | Type | Req | Description |
|---|---|---|---|
| barWeight | number | – | Bar weight. Defaults to 45 lb (20 kg). Use 35 for a women's bar, 15 for a training bar. |
| liftType | string | yes | The lift being warmed up for (e.g. squat, bench, press, deadlift) |
| roundingIncrement | number | – | Round warmup weights to this increment. Default 5. |
| workWeight | number | yes | The target work set weight in pounds (or kg if unit is kg) |
No output schema declared.
No examples provided.
What is the CoachSync MCP server?
CoachSync is an MCP server listed in the public MCP registry as io.coachsync/coachsync-mcp. Barbell strength training tools for AI assistants. Warmup, plate loading, and LP. This page covers its hosted endpoint (https://mcp.coachsync.io/mcp).
Is the CoachSync MCP server safe to use?
CoachSync scores 79 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the CoachSync MCP server expose?
CoachSync exposes 3 tools: warmup_calculator, plate_loader, novice_lp_generator. Their descriptions and schemas cost roughly 545 tokens of context every time the server is loaded.
Does the CoachSync MCP server require authentication?
No. We connected to CoachSync without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the CoachSync MCP server still maintained?
CoachSync is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.