# Fluxx (fluxx-grants) > ### About this repository > > **This is not our API.** This repository is an independent, third-party profile of a company's > **publicly available** API surface, maintained by [API Evangelist](https://apievangelist.com). > API Evangelist does not operate, host, resell, or support this company's APIs, and is not > affiliated with or endorsed by the company unless stated on the profile. > > **Where the information came from.** Everything here is assembled from material a member of the > public can reach with a browser and no credentials — the company's own website, developer portal > and documentation, the specifications it publishes for public use (OpenAPI, AsyncAPI, JSON Schema, > `apis.json`, `llms.txt` and similar), its public repositories, and its public status, pricing and > changelog pages. **Nothing here is obtained by breaching a system, defeating an access control, or > using credentials of any kind.** > > **The rating is an independent assessment.** The Kin Score and Agent Readiness rating are > independently calculated scores of a company's *public* API artifacts, produced by API Evangelist > against a published rubric. 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Any issue, comment, or email > claiming otherwise and offering a download link is not from us and is hostile. Do not follow the > link; it is a lure. Report it to GitHub and, if you like, tell us at > [info@apievangelist.com](mailto:info@apievangelist.com) so we can take it down. > > **On a security or compliance team?** Email > [info@apievangelist.com](mailto:info@apievangelist.com) with *security* in the subject line and > you will get a person, not a form. We will tell you exactly which public URLs this profile was > built from so your team can see the same surface we did, and we will take the listing down on > request while you work through it. > > Full detail: **[Where this data comes from](https://apievangelist.com/about/where-our-data-comes-from)** Fluxx is a cloud grants management platform for foundations, government agencies, corporations, and nonprofits, covering the full grant lifecycle - from funding announcement through pre-award applications, post-award payments, and measurement and evaluation. Founded in 2010 and headquartered in San Francisco, Fluxx is "purpose-built by grantmakers for grantmaking" and ranks as a leading grants management solution in the Technology Association of Grantmakers survey. **APIs.json:** [https://raw.githubusercontent.com/api-evangelist/fluxx-grants/refs/heads/main/apis.yml](https://raw.githubusercontent.com/api-evangelist/fluxx-grants/refs/heads/main/apis.yml) ## Access Model (Read This First) Fluxx exposes a **real, documented REST API (REST API v2)** - but it is **not a public, self-serve developer API**. Access is **gated per customer instance**: - The API is included with **Fluxx Grantmaker** (enterprise, contact-sales) and is enabled per customer. - It is served from each customer's own Fluxx deployment under `https://{client}.fluxx.io/api/rest/v2`. - The **reference documentation is generated per instance** at `/api/rest/v2/doc` (for example `/api/rest/v2/doc/GrantRequest`), so there is no single hosted public API reference or OpenAPI to link to. - The data model is **dynamic and instance-specific**: available models, fields, and permissions are configured per deployment. Because the surface lives behind an authenticated customer instance, the endpoints in this catalog are **honestly modeled** (`endpointsModeled`) from Fluxx's documented REST v2 conventions and from third-party integrations, rather than harvested from a public reference. No OpenAPI, plans, rate-limit, FinOps, or collection artifacts were fabricated. ## Design: Per-Client Instance + Dynamic Model Fluxx is a multi-tenant SaaS where each customer gets its own instance (subdomain). The REST API mirrors that: - **Per-client base URL** - every request targets the customer's own host, e.g. `https://acme-foundation.fluxx.io/api/rest/v2`. - **Dynamic model API** - records are accessed generically as `/api/rest/v2/{model}` (e.g. `grant_request`, `organization`, `user`, `request_transaction`, `model_document`). The set of models and their fields is defined by the instance's configuration, and the per-instance `/api/rest/v2/doc` endpoint enumerates what is actually available for that deployment. - **OAuth 2.0** - an administrator registers an application at `/oauth/applications` on the instance to get a client ID and secret, then exchanges them for an access token at `/oauth/token`. - **Query conventions** - list requests support `cols` (select fields/relations), `filter` (three-part `field relator value` criteria such as `grant_id eq R-2024-00003` or `created_at last-n-months 5`), and `page` / `per_page` pagination. ## APIs ### Fluxx Records API RESTful create, list, get, update, and delete access to Fluxx model records such as `GrantRequest`, `Organization`, and `RequestTransaction` under `/api/rest/v2/{model}`. Supports column selection, filtering, and pagination. Modeled from REST v2 conventions; concrete fields and available models are per instance. - **Base URL:** `https://{client}.fluxx.io/api/rest/v2` ### Fluxx OAuth API OAuth 2.0 authorization for the REST API. Register an application at `/oauth/applications`, obtain a client ID and secret, then exchange them for an access token at `/oauth/token`. - **Base URL:** `https://{client}.fluxx.io/oauth` ### Fluxx Documents API Access to files and documents attached to grant records via Fluxx document models (such as `ModelDocument`) under `/api/rest/v2/{model}`. Used to list and retrieve attachments associated with a `GrantRequest` or other record. - **Base URL:** `https://{client}.fluxx.io/api/rest/v2` ### Fluxx Users and Organizations API RESTful access to Fluxx people and organization records - the `User` and `Organization` models under `/api/rest/v2/{model}` that represent grantees, grantseekers, staff, and funding organizations. - **Base URL:** `https://{client}.fluxx.io/api/rest/v2` ## Pricing Fluxx Grantmaker (the grantmaker/foundation product that includes the REST API) is **enterprise, contact-sales** - no public pricing is published; the site directs prospects to request a demo and contact sales. A separate consumer-facing product, Fluxx Grantseeker (for grant seekers), publishes tiered pricing but is a different product and is not the API surface described here. ## WebSocket **No.** Fluxx does not publish a documented public WebSocket API. The REST API v2 is request/response REST over HTTPS with OAuth 2.0, and no `ws://`/`wss://` or server-push transport is documented. See [review.yml](review.yml). ## Tags - Grants Management - Grantmaking - Nonprofit - Philanthropy - Foundations - REST API ## Common Properties - [LinkedIn](https://www.linkedin.com/company/fluxx) - [Website](https://www.fluxx.io/) - [GitHub Organization](https://github.com/fluxxlabs) - [Documentation](https://www.fluxx.io/resource-center) ## Maintainers **FN:** Kin Lane **Email:** kin@apievangelist.com