co-eli-mcp
This MCP server lets you search and retrieve metadata for decisions (sentencias) by the Colombian Constitutional Court (Corte Constitucional), sourced from the datos.gov.co open-data dataset.
Free-text search (
co_search_sentencias): Search decision metadata by keywords such as a magistrado's name, process type (e.g. "tutela"), or any other term. An optional result limit can be set (default: 20).Exact citation lookup (
co_get_sentencia): Verify whether a specific citation (e.g."T-012/92") exists and retrieve its metadata.Metadata returned: Each result includes fields like proceso, expediente, magistrado ponente, sala, date,
lex_uri,source_url(linking to the official corteconstitucional.gov.co relatoria page), andhuman_readable_citation.
Limitations: Full decision text is not returned — only metadata. The interface is read-only.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@co-eli-mcplook up sentencia T-012/92"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
co-eli-mcp
MCP server for the datos.gov.co open-data record of decisions (sentencias) by the Colombian Constitutional Court (Corte Constitucional). Verifies whether a citation exists and returns its metadata.
What this is not
This dataset (v2k4-2t8s, "Sentencias proferidas por la Corte Constitucional")
has no full-text field - only metadata: proceso, expediente, magistrado
ponente, sala, and date. source_url points to the public relatoria page
where the full decision text lives, but this connector does not fetch it.
Related MCP server: CENDOJ Sentencias MCP Server
Tools
Tool | Purpose |
| Free-text search (e.g. by magistrado name or proceso type) |
| Exact lookup by citation, e.g. |
| Declare what this connector covers, when each family was captured, and - explicitly - what it does NOT cover. Every gap carries a fallback. |
Every response carries lex_uri and source_url (the public
corteconstitucional.gov.co relatoria page) and human_readable_citation
(the citation itself, e.g. "T-012/92" - already the form used in practice,
so no separate identifier scheme is needed here).
Install
pip install co-eli-mcpWindows 11 with Smart App Control
Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe
and the co-eli-mcp.exe launcher that pip writes at install time. The python.exe and
py.exe from the python.org installer are signed by the Python Software
Foundation, so running the module through the interpreter works:
python -m pip install co-eli-mcp
python -m co_eli_mcppip.exe is blocked for the same reason, so install with python -m pip, not
pip install. If python is not on PATH, use the Windows launcher: py -3 -m co_eli_mcp.
{ "mcpServers": { "co-eli-mcp": { "command": "python", "args": ["-m", "co_eli_mcp"] } } }Do not turn Smart App Control off to work around this - it cannot be re-enabled without reinstalling Windows.
Configuration
Env var | Default |
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License
Apache-2.0 (code). datos.gov.co data is open data (see SOURCES.md).
Available Tools
3 toolsco_coverageARead-onlyIdempotent
Declare what this connector covers, how it is sourced, and what it does NOT cover.
Call this before telling a user that the law "does not contain" something, and whenever a search comes back empty: the absence may be a gap in this connector rather than in the law. Every gap carries a fallback saying where to look instead.
Returns:
Coverage with families, an as-of note, and a non-empty list of known gaps.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Output Schema
| Name | Required | Description |
|---|---|---|
| status | No | |
| families | No | |
| as_of_note | Yes | States what the dates mean, and what they do not promise. |
| known_gaps | No | Never empty. An empty list would mean 'not checked', not 'no gaps'. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly, openWorld, idempotent, and non-destructive hints. The description adds meaningful behavioral context: absence of results may indicate a coverage gap rather than absence in the law, and each gap has a fallback. This goes beyond the annotations without contradiction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is compact, front-loaded with the core purpose, then usage guidance, then return structure. Every sentence adds value, with no redundancy or filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given zero parameters, rich annotations, an output schema, and a description that covers purpose, usage, and return shape (families, as-of note, gaps list), the definition is complete for an agent to select and invoke the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters, so schema coverage is 100% trivially and no parameter documentation is required. The description still clarifies what the tool returns, which is more relevant than parameter semantics for this parameterless tool.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific verb ('Declare') and resource (what the connector covers), and explicitly distinguishes its scope by noting what it does NOT cover. It is clearly differentiated from sibling search tools like co_search_sentencias and co_get_sentencia.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides explicit when-to-use guidance: call before telling a user the law 'does not contain' something, and whenever a search comes back empty. It also explains the reason (absence may be a gap in the connector) and mentions fallbacks, giving clear context without needing exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
co_get_sentenciaARead-onlyIdempotent
Verify a Corte Constitucional citation and fetch its metadata.
| Name | Required | Description | Default |
|---|---|---|---|
| sentencia | Yes | exact citation, e.g. ``"T-012/92"``. |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds the 'verify' behavior, implying existence checking, which is beyond the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no wasted words. It is front-loaded with the action and resource, achieving maximum conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simple one-parameter tool, full schema coverage, and presence of an output schema, the description is complete. It covers the purpose and the parameter sufficiently for an agent to use it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% and the parameter 'sentencia' is described with an example. The description adds no additional meaning beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's action ('Verify' and 'fetch') and target resource ('Corte Constitucional citation' and 'its metadata'). It distinguishes well from the sibling tool 'co_search_sentencias' which is for searching, while this tool retrieves a specific citation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus the sibling tool 'co_search_sentencias'. The description only states what it does, leaving the agent to infer usage context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
co_search_sentenciasARead-onlyIdempotent
Free-text search over Corte Constitucional decision metadata.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | max results (default 20). | |
| query | Yes | free text (e.g. part of a magistrado's name, or "tutela"). |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide strong safety guarantees (readOnly, destructiveFalse, idempotent). The description adds minimal extra behavior (search over metadata), but does not mention pagination, result completeness, or query syntax beyond what's in the schema.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence with no filler, front-loaded with verb and resource, every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given rich annotations, output schema existence, and simple parameters, the description covers the essential purpose. Could mention query syntax features, but overall complete for a straightforward search tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptive parameter descriptions. The description does not add significant meaning beyond the schema, so baseline score 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses specific verb 'search' with clear resource 'Corte Constitucional decision metadata', distinguishing it from sibling tool 'co_get_sentencia' which likely retrieves a single decision.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for free-text queries against decision metadata. While it doesn't explicitly contrast with the sibling, the sibling's name suggests targeted retrieval, so the intended use is reasonably clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
1 tool update
v0.3.3- Added
co_coverage
2 tool updates
v0.1.0- First observed
co_get_sentencia - First observed
co_search_sentencias
TDQS
Each tool has a clearly distinct purpose: search for finding decisions, get for fetching metadata by citation, and coverage for understanding connector limitations. There is no overlap or ambiguity between them.
Two tools follow a clear co_verb_noun pattern (co_search_sentencias, co_get_sentencia), while co_coverage is a noun-only name. This is a minor deviation but the pattern remains readable and predictable.
With only 3 tools, the server is tightly scoped to the task of searching and retrieving Colombian constitutional decisions. Each tool earns its place, and the count feels appropriate for the connector's focused purpose.
The core workflows of searching, retrieving, and verifying decisions are covered. The coverage tool explicitly documents gaps and fallbacks, which mitigates potential missing functionality. A minor gap is the lack of a listing or browsing tool, but search handles that sufficiently.
Maintenance
Resources
Unclaimed servers have limited discoverability.
Looking for Admin?
If you are the server author, to access and configure the admin panel.
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