Fitbit MCP

Fitbit Activity Logs

fitbit_list_activities

Read-onlyIdempotent

List Fitbit activity logs with date filtering, pagination, and privacy modes. Retrieve activity records before or after a specified date to analyze your fitness data.

Instructions

List Fitbit activity logs. Supports before/after cursor, pagination and privacy modes. Requires activity scope.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`page`	No	Fitbit page number.
`after`	No	Return records after this calendar date. Converted to Fitbit afterDate; mutually exclusive with before.
`limit`	No	Fitbit per_page value. Fitbit allows up to 200.
`before`	No	Return records before this calendar date. Converted to Fitbit beforeDate; mutually exclusive with after.
`all_pages`	No	Fetch multiple pages up to max_pages.
`max_pages`	No	Maximum pages to fetch when all_pages is true.
`privacy_mode`	No	Optional per-call privacy override. Defaults to FITBIT_PRIVACY_MODE or structured. raw returns upstream Fitbit JSON. summary removes GPS/map details.
`response_format`	No		markdown
`explicit_user_intent`	No	Required true when privacy_mode=raw or include_gps=true (agent escalation of redaction).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`count`	Yes
`records`	Yes
`endpoint`	Yes
`has_more`	Yes
`next_page`	No
`privacy_mode`	Yes
`pages_fetched`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedv0.6.3Sep 4, 2026

changedInput schema / properties / after / pattern

Previous value: -"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"

changedInput schema / properties / before / pattern

Previous value: -"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"

Changed2 schema fields changedv0.4.11Jul 30, 2026

addedInput schema / properties / explicit_user_intent

Added value: +{
+  "description": "Required true when privacy_mode=raw or include_gps=true (agent escalation of redaction).",
+  "type": "boolean"
+}

changedInput schema / properties / privacy_mode / description

Previous value: -"Optional per-call privacy override. Defaults to FITBIT_PRIVACY_MODE or structured. raw returns upstream Fitbit JSON. summary minimizes sensitive health and profile details."New value: +"Optional per-call privacy override. Defaults to FITBIT_PRIVACY_MODE or structured. raw returns upstream Fitbit JSON. summary removes GPS/map details."

Changed2 schema fields changedv0.4.6Jul 17, 2026

changedInput schema / properties / after / description

Previous value: -"Only return activities after this time. Converted to Fitbit epoch seconds."New value: +"Return records after this calendar date. Converted to Fitbit afterDate; mutually exclusive with before."

changedInput schema / properties / before / description

Previous value: -"Only return activities before this time. Converted to Fitbit epoch seconds."New value: +"Return records before this calendar date. Converted to Fitbit beforeDate; mutually exclusive with after."

First observedv0.4.5May 26, 2026

TDQS

A4.3/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds value by mentioning the activity scope requirement and the support for pagination and privacy modes, which are behavioral aspects beyond the annotations. No contradictions found.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with zero redundancy. The main purpose is front-loaded, and each clause adds useful information (pagination, privacy modes, scope). This is appropriately concise and well structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (9 parameters, all optional), high schema coverage (89%), an output schema, and annotations covering safety and idempotency, the description is complete enough. It covers the essential behaviors (listing, pagination, privacy, scope) without omitting anything an agent needs to decide on invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 89%, so the schema already documents most parameters well. The description's mention of 'before/after cursor' loosely maps to the 'before' and 'after' parameters, but adds little new meaning. It does not provide syntax or format details beyond what the schema already states, so a baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a clear verb ('List') and resource ('Fitbit activity logs'), and the word 'list' distinguishes it from siblings like fitbit_get_activity (single) and fitbit_get_activity_day (specific day). It also mentions capabilities like pagination and privacy modes, further clarifying scope.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives clear context: it lists activity logs, implying use when a collection is needed rather than a single record. It also states a prerequisite ('Requires activity scope'), which helps the agent know when it can call it. However, it does not explicitly name alternatives or say when NOT to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.