io.github.codymcc4/fuelcenter
REMOTE · FUELCENTER.CO · SCANNED AUG 3
Marathon fueling, pace, hydration, heat, carb-loading, and gel-comparison calculators.
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 →
Endpoint Security80
- 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 is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability75
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 876 tokens (~125/item across 7 items; 7 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 Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · fuelcenter.co
claude mcp add --transport http codymcc4-fuelcenter https://fuelcenter.co/api/mcp
[mcp_servers.codymcc4-fuelcenter] url = "https://fuelcenter.co/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"codymcc4-fuelcenter": {
"type": "remote",
"url": "https://fuelcenter.co/api/mcp",
"enabled": true
}
}
} openclaw mcp add codymcc4-fuelcenter --url https://fuelcenter.co/api/mcp --transport streamable-http
mcp_servers:
codymcc4-fuelcenter:
url: "https://fuelcenter.co/api/mcp" {
"mcpServers": {
"codymcc4-fuelcenter": {
"type": "http",
"url": "https://fuelcenter.co/api/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.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 26 +4
- 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 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 29 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 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 69
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 3 Aug 2026 · Probed https://fuelcenter.co/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=fuelcenter.co | CN=YR1,O=Let's Encrypt,C=US | 4 Jun 2026 | 2 Sept 2026 | RSA 2048 | SHA256-RSA | 630c89200e636db4a1fd4d65eab87b7f113 |
| SANs: fuelcenter.co | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
DNSSEC insecure
Validation of fuelcenter.co. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| co. | present | 7786 | 8 | Verified |
| fuelcenter.co. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fuelcenter.co/api/mcp | Verified | 200 | |
| http (plaintext) | http://fuelcenter.co/api/mcp | HTTPS enforced | 308 | https://fuelcenter.co/api/mcp |
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.
carb-loading Carb Loading Calculator ~133
Calculate pre-race carb loading targets by race type, body weight, finish time, and experience level. Returns daily carb target, protocol length, total carbs, and pre-race meal size.
| Name | Type | Req | Description |
|---|---|---|---|
| bodyWeightLbs | number | yes | Body weight in pounds. |
| experience | string | yes | Runner experience level. |
| finishTimeHours | number | yes | Expected finish time, hours portion. |
| finishTimeMinutes | number | yes | Expected finish time, minutes portion. |
| hasGIIssues | boolean | — | Whether the runner has a sensitive stomach. Default false. |
| raceType | string | yes | Race distance category. |
No output schema declared.
No examples provided.
fueling-plan Fueling Plan ~208
Build a minute-by-minute race or long-run fueling plan. Returns target carbs/hour, gel count, gel timing schedule, and total carbs. This is the core FuelCenter tool.
| Name | Type | Req | Description |
|---|---|---|---|
| buffer | number | — | Minutes of buffer at start and end where no gel is taken. Default 5. |
| drinkCarbsTotal | number | — | Total grams of carbs from drink mix across the run. Default 0. |
| drinkMix | boolean | — | Whether the runner uses a carbohydrate drink mix. Default false. |
| experience | string | — | Runner experience with fueling. Default "standard". |
| gelKey | string | yes | Gel product key. See /api/tools/gel-comparison for full catalog. |
| hours | number | yes | Race or run duration, hours portion. |
| intensity | string | yes | Effort level. |
| minutes | number | yes | Race or run duration, minutes portion. |
| targetCPH | number | — | Target carbs per hour. If omitted, default is derived from guideline. |
No output schema declared.
No examples provided.
gel-comparison Gel Comparison ~94
Return the FuelCenter gel catalog (SiS Beta Fuel, Maurten, Precision, GU, Tailwind, Spring, Carbs Fuel, neversecond, Huma) with carbs, price, caffeine, weight, and carbs-per-dollar. Optionally sort.
| Name | Type | Req | Description |
|---|---|---|---|
| sortDirection | string | — | Sort direction. Default "desc". |
| sortKey | string | — | Column to sort by. Default "carbsPerDollar". |
No output schema declared.
No examples provided.
heat-adjustment Heat Adjustment ~109
Estimate how temperature and humidity will slow your race pace and change your fluid needs. Returns adjusted pace, slowdown percent, dew point, risk level, and fueling note.
| Name | Type | Req | Description |
|---|---|---|---|
| distanceMiles | number | yes | Race distance in miles. |
| humidity | number | yes | Relative humidity as a percentage, 0-100. |
| paceSecondsPerMile | number | yes | Your goal pace in seconds per mile (cool-weather pace). |
| tempF | number | yes | Air temperature at race time in degrees Fahrenheit. |
No output schema declared.
No examples provided.
hydration Hydration Calculator ~95
Estimate fluid and sodium needs for a race or long run based on body weight, duration, intensity, temperature, and humidity.
| Name | Type | Req | Description |
|---|---|---|---|
| bodyWeightLbs | number | yes | Body weight in pounds. |
| durationMinutes | number | yes | Run or race duration in minutes. |
| humidity | number | yes | Relative humidity, 0-100. |
| intensity | string | yes | Effort level. |
| tempF | number | yes | Temperature in Fahrenheit. |
No output schema declared.
No examples provided.
pace-calculator Pace Calculator ~106
Given any two of distance, total time, or pace-per-mile, calculate the third. Returns pace per mile, per km, splits, and speed.
| Name | Type | Req | Description |
|---|---|---|---|
| distanceMiles | number | — | Required for mode "pace" or "time". |
| mode | string | yes | Which field to solve for. |
| paceSecondsPerMile | number | — | Required for mode "time" or "distance". |
| totalSeconds | number | — | Required for mode "pace" or "distance". |
No output schema declared.
No examples provided.
race-time-predictor Race Time Predictor ~88
Predict your finish time at common distances (5K through 100 miles) from a recent race result using the Riegel formula.
| Name | Type | Req | Description |
|---|---|---|---|
| exponent | number | — | Riegel exponent. Default 1.06. |
| knownDistanceMiles | number | yes | Distance of your recent race, in miles. |
| knownTimeSeconds | number | yes | Finish time for that race, in total seconds. |
No output schema declared.
No examples provided.