Endpoint Playground

Try the Substack Search API

Test Crawlora's Substack Search API with realistic prefilled parameters. Generate a cURL request, inspect the expected structured JSON response, and open the full docs or pricing page when you are ready to integrate this public web data extraction endpoint into your application.

Endpoint facts

Method: GET
API path: /substack/search
Platform: Substack
Auth: apiKey
Credits: 3 credits/request
Required params: query
Common optional params: page, focus_publication_id, focus_limit

Substack Search API documentation Substack platform page Crawlora API pricing Try List Substack categories API Try Substack Category Rankings API Try Substack Explore Feed API Try Substack Leaderboard API Try Get one public Substack Note API

Prefilled cURL

curl "https://api.crawlora.net/api/v1/substack/search?query=<query>" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Request parameters visible to crawlers

Parameter	Type	Required	Description
query	string	Yes	Search text
page	integer	No	Zero-based page, 20 posts per page
focus_publication_id	integer	No	Numeric publication id whose own matching posts are returned in focused_posts
focus_limit	integer	No	Cap on focused_posts, 1-20. Requires focus_publication_id.

Example JSON response

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

Public Playground

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Sample responses, schemas, request previews, and code snippets are visible before sign in. Create an account when you are ready to save an API key and run authenticated requests.

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Endpoint

Choose one catalog endpoint for this request.

1 shown

Group

Method

Auth

Endpoint

GETapiKey3 credits/requestsubstack.searchResponseDocSubstack

GET /substack/search

Search posts and publications across Substack

Searches posts across all of Substack and returns the publications that also matched, unlike /substack/publication/posts which searches within a single publication. Set focus_publication_id to additionally receive that one publication's own matching posts in focused_posts alongside the site-wide results.

API key required. Paste a full key or rotate one from the API Keys page.

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API key

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not configured

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Required query parameters

query

requiredstring

Search text

Add an API key to send a live request.

If an active API key is configured, Copy cURL includes it. Share links never include API keys.

View docs

Sample responseGET

Shown before your first request. Add an API key and send a request to see the live response, status, latency, and headers.

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

Endpoint details

Method: GET
Path: /substack/search
Authentication: apiKey
Credit cost: 3 credits/request
Platform: Substack
Parameters: 5 documented fields

Request parameters

query:querypage:queryfocus_publication_id:queryfocus_limit:queryx-api-key:header

Response schema fields

codedatadata.focused_postsdata.focused_posts[].audiencedata.focused_posts[].comment_countdata.focused_posts[].cover_image_urldata.focused_posts[].descriptiondata.focused_posts[].iddata.focused_posts[].paywalleddata.focused_posts[].published_atdata.focused_posts[].reaction_countdata.focused_posts[].slug

Sample response summary

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

cURL example

curl "https://api.crawlora.net/api/v1/substack/search?query=<query>" \
  -H "x-api-key: $CRAWLORA_API_KEY"

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Endpoint Playground

Try the Substack Search API

Endpoint facts

Method: GET
API path: /substack/search
Platform: Substack
Auth: apiKey
Credits: 3 credits/request
Required params: query
Common optional params: page, focus_publication_id, focus_limit

Prefilled cURL

curl "https://api.crawlora.net/api/v1/substack/search?query=<query>" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Request parameters visible to crawlers

Parameter	Type	Required	Description
query	string	Yes	Search text
page	integer	No	Zero-based page, 20 posts per page
focus_publication_id	integer	No	Numeric publication id whose own matching posts are returned in focused_posts
focus_limit	integer	No	Cap on focused_posts, 1-20. Requires focus_publication_id.

Example JSON response

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

Public Playground

Preview the endpoint before sending a live request

Sample responses, schemas, request previews, and code snippets are visible before sign in. Create an account when you are ready to save an API key and run authenticated requests.

Set up API key Endpoint docs

Endpoint

Choose one catalog endpoint for this request.

1 shown

Group

Method

Auth

Endpoint

GETapiKey3 credits/requestsubstack.searchResponseDocSubstack

GET /substack/search

Search posts and publications across Substack

API key required. Paste a full key or rotate one from the API Keys page.

Set up API key

View docs

API key

API key required for live requests. Your key is only used to send requests from this Playground.

not configured

Active Playground key: not configured

Manage API keys in Console

Required query parameters

query

requiredstring

Search text

Add an API key to send a live request.

If an active API key is configured, Copy cURL includes it. Share links never include API keys.

View docs

Sample responseGET

Shown before your first request. Add an API key and send a request to see the live response, status, latency, and headers.

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

Endpoint details

Method: GET
Path: /substack/search
Authentication: apiKey
Credit cost: 3 credits/request
Platform: Substack
Parameters: 5 documented fields

Request parameters

query:querypage:queryfocus_publication_id:queryfocus_limit:queryx-api-key:header

Response schema fields

Sample response summary

{
  "code": 200,
  "data": {
    "query": "artificial intelligence",
    "page": 0,
    "has_more": true,
    "posts": [
      {
        "id": 214198231,
        "title": "The State of AI in 2026",
        "url": "https://example.substack.com/p/the-state-of-ai-in-2026",
        "type": "newsletter",
        "audience": "everyone",
        "paywalled": false
      }
    ],
    "publications": [
      {
        "id": 6349492,
        "name": "SemiAnalysis",
        "subdomain": "semianalysis",
        "url": "https://semianalysis.substack.com"
      }
    ]
  },
  "msg": "success"
}

cURL example

curl "https://api.crawlora.net/api/v1/substack/search?query=<query>" \
  -H "x-api-key: $CRAWLORA_API_KEY"