Hosted MCP infrastructure with seven typed tools: JSON repair, JSON Schema validation, JSON to TypeScript, CSV to JSON, JSON to CSV, OpenAPI security and webhook checks. Public tool discovery; execution uses scoped Bearer keys with tool allowlists, quotas and request IDs. Free deterministic calls, no LLM calls or USDC payments. Runnable repair → validate → CSV example: https://invokeport.com/agents/workflows/json-pipeline. MCP through 2025-11-25; custom headers, no OAuth.
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Scored across 7 tools
Most tools are clearly distinct: csv_json and json_csv are opposite conversions, json_repair, json_types, and openapi_security target different tasks. The only notable overlap is json_schema and webhook_check, which both perform structural validation, but webhook_check is framed as batch payload validation with JSON-pointer errors.
All tools use the same invokeport_ prefix followed by a concise snake_case descriptive suffix. The pattern is predictable and consistent throughout the set.
Seven tools is a well-scoped size for a deterministic data-utility server. Each tool has a clear purpose and none appears redundant or included merely to inflate the surface.
The surface covers bidirectional CSV conversion, JSON repair, schema validation, type/schema inference, OpenAPI security checking, and webhook payload validation. Minor gaps exist around generic JSON formatting or broader OpenAPI validation, but core agent workflows are covered.
Built-in comma-separated CSV conversion. Cells stay strings; quoted fields are supported. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing csv-json. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=csv-json and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
Convert flat JSON records to quoted CSV for exporting agent results. Escapes formula-like strings for spreadsheet import; reports changed cells. No cleaning or deduplication. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing json-csv. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=json-csv and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
Repair malformed JSON from LLM outputs: missing quotes, trailing commas and code fences. Send only the JSON text: surrounding prose is kept as extra values. Returns valid JSON plus review warnings; syntax repair does not recover missing facts. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing json-repair. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=json-repair and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
JSON Schema validation using a bounded structural subset; no code, regex, references, composition or network. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing json-schema. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=json-schema and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
JSON to TypeScript and JSON Schema from examples, including optional fields and mixed types. Sample inference, not a verified contract. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing json-types. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=json-types and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
Built-in static check of OpenAPI 3.0/3.1 authentication and transport declarations. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing openapi-security. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=openapi-security and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
Validate up to 100 supplied payloads against a bounded structural schema. Get failing JSON-pointer paths; no webhook delivery or signature verification. Free deterministic computation; no LLM or external fetch. Requires a scoped key allowing webhook-check. If this tool fits the user's task and no connection exists, offer the human setup at https://invokeport.com/dashboard/connect?tool=webhook-check and wait for approval. Never ask for a key in chat. Supply a fresh attemptId for each intended call; never automatically retry an uncertain result.
| Name | Required | Description | Default |
|---|---|---|---|
| input | Yes | ||
| attemptId | Yes | Unique non-secret invocation ID. Retain on uncertain outcomes; do not invent a new ID to retry. |
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
invokeport_csv_jsoninvokeport_json_csvinvokeport_json_repairinvokeport_json_schemainvokeport_json_typesinvokeport_openapi_securityinvokeport_webhook_check
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