DC Hub

M&A Transactions

list_transactions

Read-onlyIdempotent

M&A and capital transactions in the data center sector — 1,700+ tracked deals (2019-present), each with its disclosed value where public (many private deals are undisclosed). Returns deal name, buyer, seller, value, date, market, target operator, type (acquisition/JV/refinance/recap). Filter by date range (date_from/date_to, ISO-8601), min_value_usd, region, buyer, or seller. Answers "which data-center deals closed this year", "what was that acquisition worth". Try: list_transactions date_from=2026-01-01 min_value_usd=1000000000. There is no year parameter — use date_from/date_to. Broad M&A and capital-deal flow with filters; do NOT use for hyperscaler-specific lease/PPA/JV activity (use hyperscaler_deals) or a single-deal post-mortem (use deal_autopsy). limit 1-500 (free 10), offset 0-100000; total_count is the full match count. Empty = loosen buyer/seller/value filters.

Input Schema

TableJSON Schema

Name	Required	Description
`buyer`	No	Filter by acquiring company name, e.g. Blackstone, KKR, Digital Realty
`limit`	No	Max results to return (1-500; default varies by tool)
`offset`	No	Pagination offset, 0-based (skip this many results)
`region`	No	Geographic region filter, e.g. us, eu, apac, americas
`seller`	No	Filter by selling/target company name, e.g. CyrusOne
`date_to`	No	Latest deal date, ISO-8601 (YYYY-MM-DD)
`date_from`	No	Earliest deal date, ISO-8601 (YYYY-MM-DD)
`deal_type`	No	Deal type filter, e.g. acquisition, jv, refinance, recap
`max_value_usd`	No	Maximum disclosed deal value in US dollars
`min_value_usd`	No	Minimum disclosed deal value in US dollars, e.g. 1000000000 for $1B+

Output Schema

TableJSON Schema

Name	Required	Description
`note`	No	Serving note
`tier`	No	Tier the response was served at
`count`	No	Rows returned in THIS response
`quota`	No	Caller quota state (remaining calls, tier).
`cached`	No	Whether the response was served from cache
`_entity`	No	Payload class (facility\|market\|iso_grid\|queue_results\|deal\|report\|response); branch on it.
`success`	No	true when the deal query succeeded
`citation`	No	How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string.
`provenance`	No	Source, method, as_of, verification_counts, license, cite_as; quote it when citing.
`_front_door`	No	First-tool hint: plan_query(intent) returns the ordered plan.
`data_source`	No	Where the deal set comes from
`total_count`	No	Total deals matching the filter
`total_value`	No	Aggregate disclosed value across the returned set (null when not computed)
`_return_loop`	No	Next-session delta call (get_changes).
`transactions`	No	M&A / capital-transaction rows
`total_value_unit`	No	Unit of total_value
`site_evaluation_handoff`	No	Follow-up calls [{tool, parameters, why}] when the payload carries coordinates.

Schema Changelog

Changes observed during successful MCP inspections.

AddedOct 9, 2026
RemovedSep 29, 2026

Changed2 schema fields changedAug 21, 2026

removedInput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedOutput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

Changed5 schema fields changedAug 11, 2026

removedOutput schema / properties / citation / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / citation / anyOf

Added value: +[
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  },
+  {
+    "type": "string"
+  }
+]

changedOutput schema / properties / citation / description

Previous value: -"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload."New value: +"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself."

removedOutput schema / properties / citation / properties
```
Removed value: -{}
```
removedOutput schema / properties / citation / type
```
Removed value: -"object"
```

Changed1 schema field changedJul 21, 2026

addedOutput schema / properties / _front_door

Added value: +{
+  "additionalProperties": {},
+  "description": "In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.",
+  "properties": {},
+  "type": "object"
+}

Changed16 schema fields changedJul 18, 2026

changedOutput schema / description

Previous value: -"DC Hub envelope: structuredContent mirrors the JSON payload in content[0].text — tool-specific data fields ride at the top level alongside these envelope keys."New value: +"Data-center M&A / capital transactions: `transactions` rows with buyer/seller/value/date — alongside the DC Hub envelope keys."

addedOutput schema / properties / cached

Added value: +{
+  "anyOf": [
+    {
+      "type": "boolean"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Whether the response was served from cache"
+}

addedOutput schema / properties / count

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Rows returned in THIS response"
+}

addedOutput schema / properties / data_source

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Where the deal set comes from"
+}

addedOutput schema / properties / note

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Serving note"
+}

removedOutput schema / properties / site_evaluation_handoff / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / site_evaluation_handoff / anyOf

Added value: +[
+  {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  }
+]

changedOutput schema / properties / site_evaluation_handoff / description

Previous value: -"Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates."New value: +"Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries."

removedOutput schema / properties / site_evaluation_handoff / properties
```
Removed value: -{}
```
removedOutput schema / properties / site_evaluation_handoff / type
```
Removed value: -"object"
```

addedOutput schema / properties / success

Added value: +{
+  "anyOf": [
+    {
+      "type": "boolean"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "true when the deal query succeeded"
+}

addedOutput schema / properties / tier

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Tier the response was served at"
+}

addedOutput schema / properties / total_count

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Total deals matching the filter"
+}

addedOutput schema / properties / total_value

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Aggregate disclosed value across the returned set (null when not computed)"
+}

addedOutput schema / properties / total_value_unit

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Unit of total_value"
+}

addedOutput schema / properties / transactions

Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "additionalProperties": {},
+        "properties": {
+          "buyer": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Acquirer"
+          },
+          "date": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Deal date (ISO-8601)"
+          },
+          "id": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Deal id"
+          },
+          "market": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Market the deal touches"
+          },
+          "mw": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Capacity involved, MW, when disclosed"
+          },
+          "region": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Region (us | eu | apac | americas …)"
+          },
+          "seller": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Seller / target"
+          },
+          "type": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "acquisition | jv | refinance | recap …"
+          },
+          "value": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Deal value when disclosed (see value_unit)"
+          },
+          "value_confirmed": {
+            "anyOf": [
+              {
+                "type": "boolean"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Whether the value is confirmed vs reported"
+          },
+          "value_display": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Human-formatted value, e.g. \"$9.2B\" or \"Undisclosed\""
+          },
+          "value_unit": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Unit of `value` (e.g. USD)"
+          },
+          "year": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Deal year"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "M&A / capital-transaction rows"
+}

Changed1 schema field changedJul 17, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "description": "DC Hub envelope: structuredContent mirrors the JSON payload in content[0].text — tool-specific data fields ride at the top level alongside these envelope keys.",
+  "properties": {
+    "_entity": {
+      "description": "Payload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest.",
+      "type": "string"
+    },
+    "_return_loop": {
+      "additionalProperties": {},
+      "description": "Suggested next-session delta call (get_changes since=24h) so you pull only what changed.",
+      "properties": {},
+      "type": "object"
+    },
+    "citation": {
+      "additionalProperties": {},
+      "description": "Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload.",
+      "properties": {},
+      "type": "object"
+    },
+    "provenance": {
+      "additionalProperties": {},
+      "description": "Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.",
+      "properties": {},
+      "type": "object"
+    },
+    "quota": {
+      "additionalProperties": {},
+      "description": "Caller quota state (remaining calls, tier) when available.",
+      "properties": {},
+      "type": "object"
+    },
+    "site_evaluation_handoff": {
+      "additionalProperties": {},
+      "description": "Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates.",
+      "properties": {},
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Changed14 schema fields changedJul 2, 2026

addedInput schema / properties / buyer / description

Added value: +"Filter by acquiring company name, e.g. Blackstone, KKR, Digital Realty"

addedInput schema / properties / date_from / description

Added value: +"Earliest deal date, ISO-8601 (YYYY-MM-DD)"

addedInput schema / properties / date_to / description

Added value: +"Latest deal date, ISO-8601 (YYYY-MM-DD)"

addedInput schema / properties / deal_type / description

Added value: +"Deal type filter, e.g. acquisition, jv, refinance, recap"

addedInput schema / properties / limit / description

Added value: +"Max results to return (1-500; default varies by tool)"

changedInput schema / properties / limit / maximum

Previous value: -9007199254740991New value: +500

changedInput schema / properties / limit / minimum

Previous value: --9007199254740991New value: +1

addedInput schema / properties / max_value_usd / description

Added value: +"Maximum disclosed deal value in US dollars"

addedInput schema / properties / min_value_usd / description

Added value: +"Minimum disclosed deal value in US dollars, e.g. 1000000000 for $1B+"

addedInput schema / properties / offset / description

Added value: +"Pagination offset, 0-based (skip this many results)"

changedInput schema / properties / offset / maximum

Previous value: -9007199254740991New value: +100000

changedInput schema / properties / offset / minimum

Previous value: --9007199254740991New value: +0

addedInput schema / properties / region / description

Added value: +"Geographic region filter, e.g. us, eu, apac, americas"

addedInput schema / properties / seller / description

Added value: +"Filter by selling/target company name, e.g. CyrusOne"

Changed27 schema fields changedApr 29, 2026
- addedInput schema / $schema
```
Added value: +"http://json-schema.org/draft-07/schema#"
```
- removedInput schema / properties / buyer / default
```
Removed value: -""
```
- removedInput schema / properties / buyer / title
```
Removed value: -"Buyer"
```
- removedInput schema / properties / date_from / default
```
Removed value: -""
```
- removedInput schema / properties / date_from / title
```
Removed value: -"Date From"
```
- removedInput schema / properties / date_to / default
```
Removed value: -""
```
- removedInput schema / properties / date_to / title
```
Removed value: -"Date To"
```
- removedInput schema / properties / deal_type / default
```
Removed value: -""
```
- removedInput schema / properties / deal_type / title
```
Removed value: -"Deal Type"
```
- removedInput schema / properties / limit / default
```
Removed value: -25
```
- addedInput schema / properties / limit / maximum
```
Added value: +9007199254740991
```
- addedInput schema / properties / limit / minimum
```
Added value: +-9007199254740991
```
- removedInput schema / properties / limit / title
```
Removed value: -"Limit"
```
- removedInput schema / properties / max_value_usd / default
```
Removed value: -0
```
- removedInput schema / properties / max_value_usd / title
```
Removed value: -"Max Value Usd"
```
- removedInput schema / properties / min_value_usd / default
```
Removed value: -0
```
- removedInput schema / properties / min_value_usd / title
```
Removed value: -"Min Value Usd"
```
- removedInput schema / properties / offset / default
```
Removed value: -0
```
- addedInput schema / properties / offset / maximum
```
Added value: +9007199254740991
```
- addedInput schema / properties / offset / minimum
```
Added value: +-9007199254740991
```
- removedInput schema / properties / offset / title
```
Removed value: -"Offset"
```
- removedInput schema / properties / region / default
```
Removed value: -""
```
- removedInput schema / properties / region / title
```
Removed value: -"Region"
```
- removedInput schema / properties / seller / default
```
Removed value: -""
```
- removedInput schema / properties / seller / title
```
Removed value: -"Seller"
```
- removedInput schema / title
```
Removed value: -"list_transactionsArguments"
```
- changedOutput schema / (root)
```
Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "list_transactionsOutput",
-  "type": "object"
-}New value: +null
```

Changed1 schema field changedApr 18, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "title": "Result",
+      "type": "string"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "title": "list_transactionsOutput",
+  "type": "object"
+}

Changed1 schema field changedApr 11, 2026

changedOutput schema / (root)

Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "list_transactionsOutput",
-  "type": "object"
-}New value: +null

Changed1 schema field changedMar 31, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "title": "Result",
+      "type": "string"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "title": "list_transactionsOutput",
+  "type": "object"
+}

Changed1 schema field changedMar 26, 2026

changedOutput schema / (root)

Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "list_transactionsOutput",
-  "type": "object"
-}New value: +null

First observedMar 6, 2026

TDQS

A4.8/5.0

Behavior5/5

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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), and the description layers on data-quality caveats that matter: many private deals undisclosed, 'free 10' result cap, total_count = full match count, and pagination bounds. These are behavioral traits annotations cannot express.

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

Conciseness4/5

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

Front-loaded with scope, then return fields, then filters, then a concrete example call. Sentence flow is efficient, though the filter list partially duplicates the schema and the parenthetical near-example adds mild redundancy, keeping it short of a 5.

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?

With 10 optional parameters, an output schema, and full annotations, the description supplies everything else needed: scope, returned fields, routing alternatives, pagination caps, and empty-result remediation. Nothing an agent needs to call it correctly is missing.

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 100%, so the baseline is 3, but the description adds genuine value: it flags that there is no `year` parameter and directs the agent to date_from/date_to, and it restates the free-tier limit and offset range. That goes beyond the schema's per-field descriptions.

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?

States a specific verb (list) and resource (M&A and capital transactions in the data center sector), quantifies scope (1,700+ deals, 2019-present), and enumerates returned fields. It explicitly distinguishes itself from hyperscaler_deals and deal_autopsy, so an agent can route without opening a schema.

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

Usage Guidelines5/5

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

Gives explicit when-to-use examples ('which data-center deals closed this year') and, unusually, explicit when-NOT-to-use routing: hyperscaler lease/PPA/JV activity → hyperscaler_deals; single-deal post-mortem → deal_autopsy. It also tells the agent what to do on empty results (loosen buyer/seller/value filters).

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

All DC Hub tools Inspect

Try in Browser

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

M&A Transactions

Input Schema

Output Schema

Schema Changelog

TDQS

Glama MCP Gateway

Resources