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SparkLoop API v3

SparkLoop's v3 REST API for newsletter growth and monetization. Base URL: https://api.sparkloop.app/v3. Authenticate by sending your API key in the `x-api-key` header. The previous v2 API remains available and unchanged.

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For agents: SparkLoop v3 REST API for newsletter growth and monetization: accounts, publications, paid recommendations and earnings. Base URL api.sparkloop.app/v3, key auth

newsletter growth api newsletter monetization rest api v3 paid recommendations referral program

Authority: 59 reach 13 · trust 10 · quality 21 · freshness 15
Tier: listed
llms.txt: https://api.sparkloop.app/llms.txt
Sections: 7
Links: 54
Size: 14327 bytes
Popularity rank: #54592
Registered: 2019-10-29
Country: — Publisher location unknown; CDN address excluded
Country evidence: No published address evidence collected yet
Categories: APIs and SDKs · Marketing
For agents: Interface: a documented API or declared MCP endpoint an agent can call
Inferred actions: Call an API Read documentation About these labels
Audience: developers · agents can: call api, read docs · en
First seen: 2026-10-18T15:08:53.453Z
Last checked: 2026-10-24T17:34:06.770Z
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Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-24T17:34:05.472Z. Cached copy · Source on sparkloop.app

# SparkLoop API v3

> SparkLoop's v3 REST API for newsletter growth and monetization. Base URL: https://api.sparkloop.app/v3. Authenticate by sending your API key in the `x-api-key` header. The previous v2 API remains available and unchanged.

Every resource is scoped to a publication and is richly queryable, so most questions can be answered in one or two calls:

- Nesting: most publication-scoped resources live under `/v3/publications/:publication_uuid/...` and are grouped by product side into `earn/` (monetization), `grow/` (audience growth), and `tools/` (configuration), mirroring the dashboard. `account`, `publications`, `payouts`, and `webhooks` are top-level.
- Expand: opt into related data with `?expand=a,b`. A referenced object is returned as its UUID by default, or as the full object when expanded.
- Stats: `?expand=stats` adds date-ranged performance where a resource has it; set the window with `from` and `to` (default: the last 30 days). Values only.
- Pagination: `page` and `per_page` (default 50, max 200); list responses include a `meta` block with `page`, `per_page`, `total_pages`, and a total count.
- Errors: `{ "error": "<message>" }` with conventional HTTP status codes (401 unauthorized, 404 not found, 422 unprocessable).
- Identifiers are UUIDs; monetary amounts are in dollars.

## Account & Publications

- [GET /v3/account](https://api.sparkloop.app/v3/account): Retrieve the account (team) that owns your API key — name, ESP, owner. `expand=team_members`.
- [GET /v3/publications](https://api.sparkloop.app/v3/publications): List the newsletters on your team.
- [GET /v3/publications/:uuid](https://api.sparkloop.app/v3/publications/:uuid): Retrieve a single publication.

## Earn

- [GET /v3/publications/:publication_uuid/earn/recommendations](https://api.sparkloop.app/v3/publications/:publication_uuid/earn/recommendations): List this publication's paid recommendations — newsletters it recommends through a partner program to earn commission (`type: paid`, renamed from v2 `partner_campaigns`). `expand=recommended_publication,stats` (referrals + earnings).
- [GET /v3/publications/:publication_uuid/earn/recommendations/:uuid](https://api.sparkloop.app/v3/publications/:publication_uuid/earn/recommendations/:uuid): Retrieve a single paid recommendation. `expand=recommended_publication,stats`.
- [POST /v3/publications/:publication_uuid/earn/recommendations/:recommendation_uuid/archive](https://api.sparkloop.app/v3/publications/:publication_uuid/earn/recommendations/:recommendation_uuid/archive): Soft-archive a paid recommendation this publication is sending.
- [POST /v3/publications/:publication_uuid/earn/recommendations/:recommendation_uuid/reactivation](https://api.sparkloop.app/v3/publications/:publication_uuid/earn/recommendations/:recommendation_uuid/reactivation): Restore a paid recommendation this publication archived. Returns 422 if the sponsor archived it.
- [GET /v3/publications/:publication_uuid/earn/directory/recommendations]
…

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