MCP Radar
MCP Server

Reqistry

dev.reqistry/mcp
Developer Tools Search & Research Public & reachable MCP 2025-11-25

What this MCP does

Enables agents to discover, compare, assess, monitor, and submit APIs using metadata such as documentation, pricing, health, authentication, OpenAPI support, and trust scores.

Capabilities

Tools

13 tools
assess_api_production_safety
Assess whether an API looks production-safe using Reqistry trust score, health, docs, auth, pricing, CORS, and OpenAPI signals.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string'}}, 'additionalProperties': False}
check_health
Trigger (or return cached) a health check for one API. Returns CACHED within cooldown, or QUEUED with a poll URL. Rate-limited per device.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string'}}, 'additionalProperties': False}
compare_apis
Compare 2 to 8 APIs side-by-side by id or slug. Returns auth, pricing, rate limits, SDKs, response time, CORS, verification, OpenAPI, and trust scores.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ids'], 'properties': {'ids': {'type': 'array', 'items': {'type': 'string'}, 'maxItems': 8, 'minItems': 2}}, 'additionalProperties': False}
get_alternatives
Find alternative APIs similar to a given API id — prefers same category, falls back to same API type. limit must be 2 or 3 (default 3).
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string'}, 'limit': {'type': 'number'}}, 'additionalProperties': False}
get_api
Get full detail for one API by slug or id, including health, metadata, verification, and warnings. Use after browsing a category to drill in.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['slug'], 'properties': {'slug': {'type': 'string'}}, 'additionalProperties': False}
get_api_trust_score
Get the Reqistry trust score for one API by id or slug. Score covers uptime, response time, docs quality, auth clarity, CORS, pricing clarity, freshness, and OpenAPI availability.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string'}}, 'additionalProperties': False}
get_category_apis
List published APIs in a category by slug (e.g. 'weather', 'finance'). Paginated. Use list_categories first to get a category slug.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['slug'], 'properties': {'page': {'type': 'number'}, 'slug': {'type': 'string'}, 'limit': {'type': 'number'}}, 'additionalProperties': False}
get_change_feed
Read recent Reqistry API change events: pricing changes, docs moves, OpenAPI changes, health degradation/recovery, and trust-score changes.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'limit': {'type': 'number'}}, 'additionalProperties': False}
get_use_case_collections
Get curated use-case packs such as finance dashboards, free AI APIs, travel apps, and no-auth prototype APIs.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
list_categories
List all active API categories with the number of published APIs in each. Use to populate a category filter or browse by topic.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
recommend_apis
Get recommended APIs — personalized when the device has bookmarks, otherwise random picks. Optional limit (max 50).
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'limit': {'type': 'number'}}, 'additionalProperties': False}
submit_api
Submit a new API for review. Creates a 'pending' submission (not immediately published). At least name or link required. Email optional.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'auth': {'type': 'string'}, 'cors': {'type': 'string'}, 'link': {'type': 'string', 'format': 'uri'}, 'name': {'type': 'string'}, 'https': {'type': 'boolean'}, 'notes': {'type': 'string'}, 'pricing': {'type': 'string'}, 'category': {'type': 'string'}, 'rateLimit': {'type': 'string'}, 'description': {'type': 'string'}, 'documentation': {'type': 'string'}, 'submitterName': {'type': 'string'}, 'submitterEmail': {'type': 'string', 'format': 'email'}}, 'additionalProperties': False}
suggest_alternatives
Suggest healthier alternatives to a weak or dead API. Uses the same category/type matching as Reqistry alternatives.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string'}, 'limit': {'type': 'number'}}, 'additionalProperties': False}
History

Recent tool changes

Changed
compare_apis
Sept. 21, 2026, 2:49 a.m.
Added
recommend_apis
Sept. 17, 2026, 12:39 p.m.
Added
submit_api
Sept. 17, 2026, 12:39 p.m.
Added
get_use_case_collections
Sept. 17, 2026, 12:39 p.m.
Added
get_change_feed
Sept. 17, 2026, 12:39 p.m.
Added
suggest_alternatives
Sept. 17, 2026, 12:39 p.m.
Added
assess_api_production_safety
Sept. 17, 2026, 12:39 p.m.
Added
compare_apis
Sept. 17, 2026, 12:39 p.m.
Added
get_api_trust_score
Sept. 17, 2026, 12:39 p.m.
Added
check_health
Sept. 17, 2026, 12:39 p.m.
Added
get_alternatives
Sept. 17, 2026, 12:39 p.m.
Added
get_api
Sept. 17, 2026, 12:39 p.m.
Added
get_category_apis
Sept. 17, 2026, 12:39 p.m.
Added
list_categories
Sept. 17, 2026, 12:39 p.m.
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