Koskamo

TruePeptideSource MCP

An MCP server providing six tools for peptide reference and calculation, including dose lookup, reconstitution math, search, comparison, blend calculation, and supply cost estimation. It offers read-only access to educational data with source citations.

Visit TruePeptideSource

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

TruePeptideSource MCP logo, by TruePeptideSourceVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by TruePeptideSource
MCP endpoint (Streamable HTTP)
https://truepeptidesource.com/mcp
Vendor documentation

What you can do with it

  • Look up peptide dose ranges, side effects, and storage info
  • Calculate reconstitution units and syringe dosages
  • Compare two peptides side by side
  • Calculate supply costs and vial longevity

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: com.truepeptidesource/peptides@1.0.0Project website

Protocol and capabilities

Server
truepeptidesource 1.0.0+189352c
MCP protocol
2025-06-18
Tools
6 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

TruePeptideSource is a peptide reference: published dose ranges labelled by origin (clinical study, competitor or vendor guide, community-reported, regulatory), plus exact reconstitution, blend and supply math computed in code. For syringe units, concentration or doses per vial, use peptide_reconstitution_calculator and quote its numbers as returned rather than recomputing them. Dose ranges, side effects, storage and FDA status come from peptide_lookup, with an origin label on each number. The ranges describe what studies and communities report, not a personal recommendation. Each result includes its source page; link it when quoting numbers.

Tools

6 advertised

peptide_lookup — Look up a peptide
Advertised by the server during the last successful anonymous check.
Advertised read-only

For questions about one peptide: published dose ranges and protocols, reconstitution, vial sizes, side effects, storage, half-life, FDA status, stacks and community reports. Each dose row carries an origin label (clinical study, guide, community-reported, regulatory), sources and page links.

peptide_lookup input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "peptide"
  ],
  "properties": {
    "peptide": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Peptide name, alias or slug, e.g. \"BPC-157\", \"reta\", \"semaglutide\", \"CJC-1295 + Ipamorelin\"."
    },
    "sections": {
      "type": "array",
      "items": {
        "enum": [
          "overview",
          "dosing",
          "reconstitution",
          "side_effects",
          "storage",
          "stacking",
          "community",
          "faqs"
        ],
        "type": "string"
      },
      "maxItems": 8,
      "minItems": 1,
      "description": "Sections to return. Omit for overview and dosing. Add others as needed, e.g. [\"side_effects\",\"community\"] or [\"storage\",\"reconstitution\"]."
    }
  }
}
peptide_lookup annotations
{
  "title": "Look up a peptide",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
peptide_reconstitution_calculator — Reconstitution and syringe units
Advertised by the server during the last successful anonymous check.
Advertised read-only

Exact reconstitution math for a single-peptide vial: insulin syringe units for a dose, concentration after adding bacteriostatic water and doses per vial, or the dose held in a given number of units. Flags likely mg/mcg mix-ups against the peptide's published range. Returns a calculator link.

peptide_reconstitution_calculator input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "vialAmount",
    "waterMl"
  ],
  "properties": {
    "dose": {
      "type": "number",
      "maximum": 100000000,
      "description": "Dose amount, e.g. 250 with doseUnit mcg. Give dose OR unitsDrawn.",
      "exclusiveMinimum": 0
    },
    "peptide": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Optional peptide name. Adds its IU factor, a range check and its published injected ranges."
    },
    "syringe": {
      "enum": [
        "U-100",
        "U-50",
        "U-40",
        "U-30"
      ],
      "type": "string",
      "default": "U-100",
      "description": "Insulin syringe type. \"U-100\" (the common 1 mL / 0.5 mL / 0.3 mL insulin syringe) unless the user says otherwise."
    },
    "waterMl": {
      "type": "number",
      "maximum": 100,
      "minimum": 0.01,
      "description": "Bacteriostatic water added to the vial, in mL, e.g. 2."
    },
    "doseUnit": {
      "enum": [
        "mcg",
        "mg",
        "IU"
      ],
      "type": "string",
      "description": "Unit of the dose (mcg, mg or IU). Required with dose; with unitsDrawn it picks the unit of the answer."
    },
    "vialUnit": {
      "enum": [
        "mg",
        "IU"
      ],
      "type": "string",
      "default": "mg",
      "description": "Unit of the vial amount: mg for nearly every peptide, IU for HGH-type vials."
    },
    "unitsDrawn": {
      "type": "number",
      "maximum": 10000,
      "description": "Syringe units drawn, to get the dose they hold. Give dose OR unitsDrawn.",
      "exclusiveMinimum": 0
    },
    "vialAmount": {
      "type": "number",
      "maximum": 100000,
      "description": "Amount of peptide in the vial, e.g. 10 for a 10 mg vial.",
      "exclusiveMinimum": 0
    }
  }
}
peptide_reconstitution_calculator annotations
{
  "title": "Reconstitution and syringe units",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
peptide_search — Search peptides
Advertised by the server during the last successful anonymous check.
Advertised read-only

Lists the peptides TruePeptideSource covers, matched by name, alias or topic (GLP-1, healing, weight loss, sleep). Returns names, one-line summaries, FDA status, evidence level and page links.

peptide_search input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "query": {
      "type": "string",
      "default": "",
      "maxLength": 100,
      "description": "Name, alias or topic, e.g. \"tb\", \"ipamorelin\", \"GLP-1\", \"healing\". Empty lists everything."
    },
    "category": {
      "enum": [
        "glp1",
        "healing_recovery",
        "gh_axis",
        "longevity_mitochondrial",
        "cognitive",
        "skin_hair",
        "sexual_health",
        "weight_loss",
        "immune",
        "sleep",
        "other"
      ],
      "type": "string",
      "description": "Optional category filter."
    }
  }
}
peptide_search annotations
{
  "title": "Search peptides",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
peptide_compare — Compare two peptides
Advertised by the server during the last successful anonymous check.
Advertised read-only

Side-by-side comparison of two peptides (e.g. semaglutide vs tirzepatide, BPC-157 vs TB-500): evidence, FDA status, half-life, routes, vial sizes, storage, published dose ranges and key differences, each labelled by origin.

peptide_compare input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Peptide name, alias or slug, e.g. \"BPC-157\", \"reta\", \"semaglutide\", \"CJC-1295 + Ipamorelin\"."
    },
    "b": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Peptide name, alias or slug, e.g. \"BPC-157\", \"reta\", \"semaglutide\", \"CJC-1295 + Ipamorelin\"."
    }
  }
}
peptide_compare annotations
{
  "title": "Compare two peptides",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
peptide_blend_calculator — Blend vial calculator
Advertised by the server during the last successful anonymous check.
Advertised read-only

Math for vials holding two or more peptides (KLOW, GLOW, BPC-157 + TB-500, CJC-1295 + Ipamorelin): units to draw and how much of each peptide one draw delivers. Name a known blend or list the components, then give the dose for one component (targetPeptide) or for the whole blend (totalDose).

peptide_blend_calculator input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "waterMl",
    "dose",
    "doseUnit"
  ],
  "properties": {
    "dose": {
      "type": "number",
      "maximum": 100000000,
      "description": "Dose of targetPeptide, or of the whole blend when totalDose is true.",
      "exclusiveMinimum": 0
    },
    "blend": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "A blend TruePeptideSource covers, e.g. \"KLOW\", \"GLOW\", \"BPC-157 + TB-500\". Its label amounts are used unless components is given."
    },
    "syringe": {
      "enum": [
        "U-100",
        "U-50",
        "U-40",
        "U-30"
      ],
      "type": "string",
      "default": "U-100",
      "description": "Insulin syringe type. \"U-100\" (the common 1 mL / 0.5 mL / 0.3 mL insulin syringe) unless the user says otherwise."
    },
    "waterMl": {
      "type": "number",
      "maximum": 100,
      "minimum": 0.01,
      "description": "Bacteriostatic water added, in mL."
    },
    "doseUnit": {
      "enum": [
        "mcg",
        "mg"
      ],
      "type": "string",
      "description": "Unit of the dose: mcg or mg."
    },
    "totalDose": {
      "type": "boolean",
      "default": false,
      "description": "True when the dose is for the whole blend (\"2 mg of KLOW\"), false when it is for targetPeptide."
    },
    "components": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "peptide",
          "amount"
        ],
        "properties": {
          "unit": {
            "enum": [
              "mcg",
              "mg"
            ],
            "type": "string",
            "default": "mg",
            "description": "mg or mcg."
          },
          "amount": {
            "type": "number",
            "maximum": 100000,
            "description": "Amount of this peptide in the vial.",
            "exclusiveMinimum": 0
          },
          "peptide": {
            "type": "string",
            "maxLength": 100,
            "minLength": 1,
            "description": "Peptide name, alias or slug, e.g. \"BPC-157\", \"reta\", \"semaglutide\", \"CJC-1295 + Ipamorelin\"."
          }
        }
      },
      "maxItems": 6,
      "minItems": 2,
      "description": "Vial contents, 2 to 6 peptides, e.g. [{\"peptide\":\"BPC-157\",\"amount\":10,\"unit\":\"mg\"},{\"peptide\":\"TB-500\",\"amount\":10,\"unit\":\"mg\"}]."
    },
    "composition": {
      "type": "string",
      "maxLength": 60,
      "minLength": 1,
      "description": "For a blend sold in several versions, which one, e.g. \"70 mg\". Omit for the first; the result lists the others."
    },
    "targetPeptide": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "The component the dose is for. Use with dose."
    }
  }
}
peptide_blend_calculator annotations
{
  "title": "Blend vial calculator",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
peptide_supply_calculator — Supply and cost planner
Advertised by the server during the last successful anonymous check.
Advertised read-only

Plans supply and cost: how long a vial lasts, how many vials a cycle needs, and cost per dose, week and cycle when pricePerVial is given. Counts whole doses and respects how long a mixed vial keeps (from the dataset when a peptide is named).

peptide_supply_calculator input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "vialAmount",
    "dose",
    "doseUnit",
    "frequency",
    "durationWeeks"
  ],
  "properties": {
    "dose": {
      "type": "number",
      "maximum": 100000000,
      "description": "Dose per injection, e.g. 250.",
      "exclusiveMinimum": 0
    },
    "peptide": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Optional peptide name, for its IU factor and mixed-vial shelf life."
    },
    "doseUnit": {
      "enum": [
        "mcg",
        "mg",
        "IU"
      ],
      "type": "string",
      "description": "Unit of the dose. BPC-157 is usually dosed in mcg, GLP-1s like semaglutide in mg, HGH in IU."
    },
    "vialUnit": {
      "enum": [
        "mg",
        "IU"
      ],
      "type": "string",
      "default": "mg",
      "description": "Unit of the vial amount: mg for nearly every peptide, IU for HGH-type vials."
    },
    "frequency": {
      "enum": [
        "daily",
        "twice_daily",
        "every_other_day",
        "every_3_days",
        "weekly",
        "twice_weekly",
        "three_times_weekly",
        "five_days_a_week"
      ],
      "type": "string",
      "description": "How often the dose is taken."
    },
    "vialAmount": {
      "type": "number",
      "maximum": 100000,
      "description": "Amount of peptide per vial, e.g. 5 for a 5 mg vial.",
      "exclusiveMinimum": 0
    },
    "pricePerVial": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0.01,
      "description": "Price of one vial in US dollars, for cost answers."
    },
    "durationWeeks": {
      "type": "integer",
      "maximum": 520,
      "minimum": 1,
      "description": "Cycle length in weeks, e.g. 8."
    },
    "useWithinDays": {
      "type": "number",
      "maximum": 365,
      "minimum": 1,
      "description": "Days a mixed vial may be used. Omit to use the peptide's dataset value."
    }
  }
}
peptide_supply_calculator annotations
{
  "title": "Supply and cost planner",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
736 ms
95th percentile latency
736 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 736 ms · metadata changed · 6 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http truepeptidesource-mcp https://truepeptidesource.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add truepeptidesource-mcp --url https://truepeptidesource.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable truepeptidesource-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "truepeptidesource-mcp": {
      "url": "https://truepeptidesource.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "truepeptidesource-mcp": {
      "type": "streamableHttp",
      "url": "https://truepeptidesource.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start truepeptidesource-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "truepeptidesource-mcp": {
      "type": "http",
      "url": "https://truepeptidesource.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http truepeptidesource-mcp https://truepeptidesource.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "truepeptidesource-mcp": {
      "url": "https://truepeptidesource.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "truepeptidesource-mcp": {
      "serverUrl": "https://truepeptidesource.com/mcp"
    }
  }
}

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