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grafana-mcp-adapter

grafana-mcp-adapter

Read-only MCP server that exposes Grafana dashboards, datasources and metric/log queries as tools, for use by skills in the TICKETS workspace.

This is a private, standalone adapter: its own git repo, its own .env. It is not part of ia-tooling and does not depend on its stack — it only makes HTTPS calls out to the Grafana HTTP API (${GRAFANA_BASE_URL}/api). It was scaffolded by cloning the structure of fathom-mcp-adapter.

Architecture

The adapter is the MCP server. Internally it calls the Grafana HTTP API directly (just as the Fathom adapter calls Fathom's REST API). MCP servers are not chained to one another.

  • Auth: a Grafana service account token sent as a Bearer token in the Authorization header. Scope it to a read-only role (Viewer). Create the service account + token in Grafana → Administration → Service accounts.

  • Most tools return raw payloads (dashboard JSON, datasource lists). The exceptions are the high-volume ones: grafana_query returns a compact per-series digest by default (a full up query is ~8 MB of frames, far past what an MCP context wants), and grafana_logs_link returns a capped preview. Both can be pushed back toward raw (raw=true / a higher limit).

  • Read-only by design. Note that grafana_query is a POST (Grafana's /api/ds/query is POST-shaped) but only reads metrics/logs.

Related MCP server: mcp-grafana

Tools

Tool

Purpose

grafana_health

Config/connectivity check (makes one authenticated call).

grafana_search_dashboards

Search dashboards by title substring and/or tags.

grafana_get_dashboard

Full dashboard JSON by uid.

grafana_list_datasources

List configured datasources (uid, name, type).

grafana_query

Run a PromQL/LogQL/etc. query against a datasource uid over a time range. Returns a per-series digest by default.

grafana_logs_link

Build a permanent Grafana Explore (Loki) deep link for a customer's logs and return a preview of recent lines.

grafana_query response shape

The raw /api/ds/query response carries a full timestamp+value array per series, and a query like up can return thousands of series (~8 MB). By default the tool collapses each series to its labels + a numeric digest and caps the list:

{
  "results": {
    "A": {
      "status": 200,
      "series_count": 3085,        // total series before capping
      "series": [                  // capped to maxSeries (50)
        { "labels": { "job": "..." }, "count": 60, "first": 1, "last": 1, "min": 0, "max": 1, "avg": 0.98 }
      ],
      "truncated": 3035            // how many series were dropped from `series`
    }
  }
}

Pass raw=true to get the full (potentially very large) frames instead.

Identify a customer/component with free text (client='april', component='gateway'); it matches case-insensitively against the service_name label, which on this instance encodes both (e.g. graviteeio-ae-april-rec-engine). Returns { query, explore_url, range, preview_count, preview } — paste explore_url (a permanent Grafana 11+ Explore link) into the ticket. The default range is the last hour; widen with from/to. When nothing matches, it returns close service_name values as suggestions so typos like aprl → april surface.

Examples (how a user asks for it)

Just ask in plain language — the agent maps it to the client / component / from / to / line_filter arguments for you.

"Give me the last hour of API gateway logs for Northwind." → { "client": "northwind", "component": "gateway" }

"Show me the engine logs for Contoso over the last 6 hours." → { "client": "contoso", "component": "engine", "from": "now-6h" }

"Find the gateway errors for Globex in the last 3 hours, give me up to 200 lines." → { "client": "globex", "component": "gateway", "line_filter": "error", "from": "now-3h", "limit": 200 }

"I need the UI logs for Initech during yesterday's incident between 10:00 and 11:00." → { "client": "initech", "component": "ui", "from": "<epoch ms 10:00>", "to": "<epoch ms 11:00>" }

"Give me the production gateway logs for Northwind." → { "client": "northwind prod", "component": "gateway" }

(The environment — prod, rec, dev — isn't a separate argument: it lives inside service_name, so just fold it into client as another word. Both client and component are matched as case-insensitive substrings with .* between them, so northwind prod matches …-northwind-prod-….)

Each call returns explore_url — paste it into the ticket as a permanent link — plus a capped preview of the newest matching lines.

Setup

npm install
cp .env.example .env   # then fill in GRAFANA_BASE_URL and GRAFANA_TOKEN
npm test
npm start              # speaks MCP over stdio

GRAFANA_TOKEN must come from .env (which is git-ignored) — never hardcode it.

Wiring into the TICKETS MCP session

Build the image and add a grafana entry to the TICKETS .mcp.json, alongside fathom / zendesk / vectordb / github. It only needs HTTPS egress.

docker build -t grafana-mcp-adapter .
// .mcp.json (TICKETS)
{
  "mcpServers": {
    "grafana": {
      "command": "docker",
      "args": ["run", "--rm", "-i", "--env-file", "/ABSOLUTE/PATH/TO/.env", "grafana-mcp-adapter"]
    }
  }
}

Available Tools

6 tools
grafana_get_dashboardA

Read-only fetch of a Grafana dashboard's full JSON by uid (panels, variables, queries, meta). Get the uid from grafana_search_dashboards.

ParametersJSON Schema
NameRequiredDescriptionDefault
uidYes

TDQS

A4.2/5.0
Behavior3/5

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

No annotations provided. Description calls it 'read-only', implying safety, but lacks details on side effects, permissions, or error conditions. Adequate but not comprehensive.

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, concise, front-loaded with key info. No unnecessary words.

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

Completeness4/5

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

Explains output content (full JSON with panels, variables, queries, meta) despite no output schema. Mentions prerequisite step. Minor gap: no mention of pagination or size limits.

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

Parameters4/5

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

Schema has no description for 'uid'. Description adds that uid is the dashboard identifier and should come from search results, compensating for low schema coverage.

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 specifies a read-only fetch of a Grafana dashboard's full JSON by uid, listing contained elements (panels, variables, queries, meta). It differentiates from sibling tools by indicating uid source.

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?

Explicitly states to get uid from grafana_search_dashboards, providing a clear prerequisite. Does not list exclusions or alternatives but contextualizes usage.

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

grafana_healthA

Read-only Grafana health/config check.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A3.7/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It states 'read-only' but does not specify what exact information the check returns (health vs config details). Minimal transparency.

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?

Extremely concise: one short sentence that conveys the essential purpose. Every word earns its place.

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

Completeness3/5

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

Given no parameters, no output schema, and a simple health check, the description is adequate but could mention what information is returned (e.g., 'returns health status and config summary').

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?

No parameters exist, and schema coverage is 100%. The description adds no parameter meaning since there are none. Baseline score 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 clearly states 'Read-only Grafana health/config check', using a specific verb ('check') and resource ('Grafana health/config'). It distinguishes from siblings like grafana_query or grafana_get_dashboard.

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

Usage Guidelines3/5

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

No explicit when-to-use or when-not-to-use guidance. The function is self-evident as a health check, but there are no exclusions or alternatives mentioned.

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

grafana_list_datasourcesA

Read-only list of configured Grafana datasources. Returns uid, name, type and is_default. Use a datasource uid with grafana_query.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4.3/5.0
Behavior4/5

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

The description explicitly states the tool is 'Read-only', which is a key behavioral trait. With no annotations provided, the description carries the full burden and adequately discloses that the tool does not mutate state. It also mentions the return fields, adding transparency.

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?

The description is two sentences, front-loaded with the core purpose, and a second sentence providing a usage hint. No unnecessary words, every sentence adds value.

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 no parameters and no output schema, the description is fully complete. It states the read-only nature, the returned fields, and a practical usage hint. No additional information is needed for an agent to use this tool correctly.

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?

The input schema has no parameters, so schema coverage is trivially 100%. The description does not add parameter information because there are none. 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 clearly states the tool is a 'Read-only list of configured Grafana datasources' and specifies the returned fields (uid, name, type, is_default). It distinguishes itself from sibling tools like grafana_query and grafana_get_dashboard by focusing solely on datasource listing.

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 provides a clear usage hint: 'Use a datasource uid with grafana_query,' which indicates a common workflow. It does not explicitly mention when not to use this tool, but given the sibling tools are all distinct (no other list tool), this is sufficient.

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

grafana_queryA

Read-only metric/log query via Grafana's /api/ds/query. Provide the datasource uid (from grafana_list_datasources), a raw expression (PromQL for Prometheus, LogQL for Loki, etc.), and an optional time range. By default returns a compact per-series digest (labels + count/first/last/min/max/avg); pass raw=true for the full (potentially very large) frames.

ParametersJSON Schema
NameRequiredDescriptionDefault
toNoRange end, e.g. 'now' or epoch ms.now
rawNoReturn the full raw frames instead of the per-series digest. Can be very large.
exprYesQuery expression (PromQL/LogQL/etc.).
fromNoRange start, e.g. 'now-1h' or epoch ms.now-1h
datasource_uidYesDatasource uid from grafana_list_datasources.
max_data_pointsNo

TDQS

A4.7/5.0
Behavior5/5

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

With no annotations, the description fully discloses read-only nature, potential for large raw frames, and default digest format. This covers safety and size risks.

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?

Three sentences with no wasted words. First sentence states purpose and endpoint, second and third provide usage and behavior. Efficient and front-loaded.

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 no output schema, description explains return format (digest vs raw). Covers all required and optional parameters, references another tool, and mentions query language variations. Complete for a query tool.

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

Parameters4/5

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

Schema has 83% description coverage; description adds value by explaining datasource_uid source, expr language types, optional time range, and raw effect. Slight improvement over schema alone.

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 clearly states it is a 'Read-only metric/log query' via a specific API endpoint, with verb 'query' and resource 'metric/log'. It distinguishes from sibling tools like grafana_health or grafana_search_dashboards.

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?

It provides explicit prerequisite (datasource uid from grafana_list_datasources), explains the raw parameter trade-off, and suggests default time range. It does not explicitly say when not to use but gives enough context.

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

grafana_search_dashboardsA

Read-only search of Grafana dashboards (by title substring and/or tags). Returns uid, title, folder, tags and url for each. Use the uid with grafana_get_dashboard to fetch the full dashboard JSON.

ParametersJSON Schema
NameRequiredDescriptionDefault
tagsNoFilter by dashboard tags.
limitNo
queryNoTitle substring to match.

TDQS

A4.2/5.0
Behavior3/5

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

With no annotations, the description carries full burden. It states 'Read-only' indicating no mutation, and lists return fields. However, it does not disclose behavior like pagination, case sensitivity of subtitle search, or what happens when no query/tags are provided (likely returns all dashboards within limits). The limit parameter is mentioned in schema but not in description.

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 concise sentences: first states purpose and return fields, second links to the sibling tool. Every sentence adds value, no wasted words.

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

Completeness4/5

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

Given 3 parameters, no output schema, and no annotations, the description adequately covers purpose, return fields, and how to proceed for full details. Missing details like result count or explicit handling of empty search are minor gaps for a search tool.

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

Parameters4/5

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

Schema coverage is 67% (tags and query described, limit not). The description combines query and tags with 'and/or', clarifying how they interact, which adds meaning beyond the schema. Limit is not addressed but has clear constraints in schema.

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 clearly states the tool performs a read-only search of Grafana dashboards by title substring and/or tags, and lists the returned fields (uid, title, folder, tags, url). This distinguishes it from the sibling grafana_get_dashboard, which fetches full dashboard JSON.

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 explicitly guides the agent to use grafana_get_dashboard with the uid for full dashboard details, providing a clear alternative. However, it does not specify when to avoid using this tool, e.g., if needing other data types or filtering by fields not supported.

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

TDQS

A4.2/5.0
Disambiguation5/5

Each tool targets a distinct Grafana operation: health check, datasource listing, dashboard search and retrieval, general querying, and a specialized logs link builder. No functional overlap exists.

Naming Consistency4/5

All tools share the 'grafana_' prefix and mostly follow a verb_noun pattern (get_dashboard, list_datasources, search_dashboards). Exceptions like 'health' (noun) and 'logs_link' (noun_noun) are minor inconsistencies within an otherwise coherent scheme.

Tool Count5/5

With 6 tools, the server covers the essential read-only Grafana operations without being excessive. Each tool serves a clear purpose and earns its place.

Completeness4/5

The set covers core read-only functionality: health, datasources, dashboards, querying, and logs linking. Missing are alerting and annotations, but the surface is complete for common exploration tasks and tools are well-connected (e.g., search_dashboards feeds get_dashboard).

Maintenance

ActivityStale
ResponsivenessSyncing

Resources

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