{ "openapi": "3.0.1", "info": { "title": "Substack Newsletter, Author & Sponsor Leads Scraper (B2B)", "description": "Search and enrich Substack newsletters by niche keyword or URL. Extract author names, verified contact & sponsor emails, subscriber scale, bestseller badges, custom domains, social profiles, and recent posts. Zero proxies needed.", "version": "1.0", "x-build-id": "eArZOBmUbWRWkz7Y4" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/church_of_loujess~substack-newsletter-leads-scraper/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-church_of_loujess-substack-newsletter-leads-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/church_of_loujess~substack-newsletter-leads-scraper/runs": { "post": { "operationId": "runs-sync-church_of_loujess-substack-newsletter-leads-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/church_of_loujess~substack-newsletter-leads-scraper/run-sync": { "post": { "operationId": "run-sync-church_of_loujess-substack-newsletter-leads-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "searchQueries": { "title": "Niche / Topic Search Keywords", "type": "array", "description": "Search Substack publications by topic, industry, or audience (e.g. ['B2B SaaS', 'AI engineering', 'fintech']).", "default": [ "B2B SaaS" ], "items": { "type": "string" } }, "publications": { "title": "Specific Substack URLs or Subdomains (Optional)", "type": "array", "description": "Optional list of Substack URLs, custom domains, or subdomains (e.g. ['demandloops', 'https://www.lennysnewsletter.com']).", "default": [], "items": { "type": "string" } }, "maxNewslettersPerQuery": { "title": "Max Newsletters per Search Query", "minimum": 1, "maximum": 200, "type": "integer", "description": "Maximum number of Substack publications to extract per keyword search.", "default": 15 }, "crawlAboutAndSocials": { "title": "Crawl /about Page & Author Website for Sponsor Emails", "type": "boolean", "description": "Fetches the publication /about page and linked author website to uncover sponsorship inquiries, media kits, LinkedIn/X profiles, and direct emails.", "default": true }, "includeRecentPosts": { "title": "Include Recent Newsletter Posts Sample", "type": "boolean", "description": "Fetches the 3 most recent newsletter posts (titles, URLs, engagement reactions, and publish dates) for personalized sponsorship outreach hooks.", "default": true }, "onlyWithEmail": { "title": "Only Return Newsletters with Verified Contact Emails", "type": "boolean", "description": "Filter output to publications where at least one verified deliverable contact email was found.", "default": false }, "proxyConfiguration": { "title": "Proxy Configuration (Optional)", "type": "object", "description": "Optional proxy settings. Works out-of-the-box with direct connections at 256MB.", "default": { "useApifyProxy": false } } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } } } } } } } } }