Bloomerang website screenshot

Bloomerang

Bloomerang is a cloud-based donor management and fundraising CRM built for small and mid-size nonprofits, covering constituent records, donations and pledges, communications, and reporting. Bloomerang acquired fellow nonprofit platform Kindful in January 2021, but Kindful continues to run its own separate API and product line; this entry documents Bloomerang's own REST API v2 (base https://api.bloomerang.co/v2), authenticated with a private API key or OAuth 2.0, for managing constituents, transactions, interactions, and related donor data.

Bloomerang publishes 24 API contracts indexed on the APIs.io network, including Constituents API, Custom Fields API, Households API, and 21 more. Tagged areas include Non-Profit, Donor Management, CRM, Fundraising, and Fundraising Software.

Bloomerang’s developer surface includes authentication, documentation, engineering blog, and 11 more developer resources.

🌐 Visit website📡 Profile data on GitHub
27.3/100 thin ▬ flat Agent 21/100 agent aware Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →
AccessPaidSelf serve
1 published contract
Non-ProfitDonor ManagementCRMFundraisingFundraising Software

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Institutional Advancement & Alumni Management
BC-4800
ConstituentsInteractionsTransactions
POST /transaction POST /constituent POST /interaction
Customer Relationship Management
BC-420
ConstituentsHouseholdsRelationships
POST /household

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0
Composite quality — 27.3/100 · thin
Contract Quality 7.8 / 19
Developer Ergonomics 3.6 / 15
Access Clarity 2.4 / 15
Operational Transparency 1.0 / 10
Contract Governance 0.0 / 9
Discoverability 5.0 / 8
Regulatory Posture 4.0 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Pagination 0 / 5
Distinct Operations 3 / 3
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site. Kin Score badge preview for Bloomerang It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/bloomerang/"><img src="https://apis.io/badge/bloomerang/card.svg" alt="Bloomerang on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/bloomerang: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Nonprofit and Fundraising undeclared - - -
TX-RAMP Certified Cloud Products (Texas DIR) undeclared - - -

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 24

Individual APIs this provider publishes, each with its own machine-readable definition.

Bloomerang Constituents API

Individuals, households, and organizations tracked as donors and contacts.

Bloomerang Custom Fields API

Account-specific custom field definitions by object type.

Bloomerang Households API

Family-unit grouping of individual constituents.

Bloomerang Interactions API

Logged touches between the organization and a constituent.

Bloomerang Notes API

Freeform notes attached to a constituent record.

Bloomerang Relationships API

Relationships between two constituents.

Bloomerang Transactions API

Donations, pledges, pledge payments, and recurring donation designations.

Bloomerang Addresses API

The Addresses API from Bloomerang — 3 operation(s) for addresses.

Bloomerang Appeals API

The Appeals API from Bloomerang — 3 operation(s) for appeals.

Bloomerang Campaigns API

The Campaigns API from Bloomerang — 4 operation(s) for campaigns.

Bloomerang Email Addresses API

The Email Addresses API from Bloomerang — 3 operation(s) for email addresses.

Bloomerang Email Interests API

The Email Interests API from Bloomerang — 2 operation(s) for email interests.

Bloomerang Funds API

The Funds API from Bloomerang — 3 operation(s) for funds.

Bloomerang Groups API

The Groups API from Bloomerang — 1 operation(s) for groups.

Bloomerang Phones API

The Phones API from Bloomerang — 3 operation(s) for phones.

Bloomerang Pledges API

The Pledges API from Bloomerang — 5 operation(s) for pledges.

Bloomerang Processors API

The Processors API from Bloomerang — 2 operation(s) for processors.

Bloomerang Refunds API

The Refunds API from Bloomerang — 3 operation(s) for refunds.

Bloomerang Relationship Roles API

The Relationship Roles API from Bloomerang — 2 operation(s) for relationship roles.

Bloomerang Soft Credits API

The Soft Credits API from Bloomerang — 3 operation(s) for soft credits.

Bloomerang Tasks API

The Tasks API from Bloomerang — 4 operation(s) for tasks.

Bloomerang Tributes API

The Tributes API from Bloomerang — 4 operation(s) for tributes.

Bloomerang Users API

The Users API from Bloomerang — 5 operation(s) for users.

Bloomerang Wallet Items API

The Wallet Items API from Bloomerang — 3 operation(s) for wallet items.

Scroll for all 24

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Bloomerang REST API v2 Constituents API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Custom Fields API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Households API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Interactions API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Notes API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Reference Data API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Relationships API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Transactions API

OPEN COLLECTION

Bloomerang REST API v2 Constituents Webhooks API

OPEN COLLECTION

Bloomerang REST API v2

OPEN COLLECTION

Scroll for all 10

Pricing Plans 1

Published pricing tiers and plan structures.

Bloomerang Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bloomerang Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Bloomerang Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Bloomerang Authentication

apiKey/oauth2 · 2 schemes

SECURITY

Bloomerang Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Bloomerang Trust Center

SOC 2, ISO 27001

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Bloomerang Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Bloomerang Agentic Access

27 operations · 10 acting

27 operations · 10 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap

Source (apis.yml)

apis.yml Raw ↑ 
aid: bloomerang
url: https://raw.githubusercontent.com/api-evangelist/bloomerang/refs/heads/main/apis.yml
name: Bloomerang
kind: company
description: Bloomerang is a cloud-based donor management and fundraising CRM built for small and mid-size nonprofits, covering
  constituent records, donations and pledges, communications, and reporting. Bloomerang acquired fellow nonprofit platform
  Kindful in January 2021, but Kindful continues to run its own separate API and product line; this entry documents Bloomerang's
  own REST API v2 (base https://api.bloomerang.co/v2), authenticated with a private API key or OAuth 2.0, for managing constituents,
  transactions, interactions, and related donor data.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bloomerang.png
tags:
- Non-Profit
- Donor Management
- CRM
- Fundraising
- Fundraising Software
tags_raw:
- Nonprofit
- Donor Management
- CRM
- Fundraising
- Fundraising Software
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: bloomerang:bloomerang-constituents-api
  name: Bloomerang Constituents API
  description: Individuals, households, and organizations tracked as donors and contacts.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Constituents
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-constituents-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-custom-fields-api
  name: Bloomerang Custom Fields API
  description: Account-specific custom field definitions by object type.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Custom Fields
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-custom-fields-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-households-api
  name: Bloomerang Households API
  description: Family-unit grouping of individual constituents.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Households
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-households-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-interactions-api
  name: Bloomerang Interactions API
  description: Logged touches between the organization and a constituent.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Interactions
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-interactions-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-notes-api
  name: Bloomerang Notes API
  description: Freeform notes attached to a constituent record.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Notes
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-notes-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-relationships-api
  name: Bloomerang Relationships API
  description: Relationships between two constituents.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Relationships
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-relationships-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-transactions-api
  name: Bloomerang Transactions API
  description: Donations, pledges, pledge payments, and recurring donation designations.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-transactions-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-addresses-api
  name: Bloomerang Addresses API
  description: The Addresses API from Bloomerang — 3 operation(s) for addresses.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Addresses
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-addresses-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-appeals-api
  name: Bloomerang Appeals API
  description: The Appeals API from Bloomerang — 3 operation(s) for appeals.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Appeals
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-appeals-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-campaigns-api
  name: Bloomerang Campaigns API
  description: The Campaigns API from Bloomerang — 4 operation(s) for campaigns.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-campaigns-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-email-addresses-api
  name: Bloomerang Email Addresses API
  description: The Email Addresses API from Bloomerang — 3 operation(s) for email addresses.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Email Addresses
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-email-addresses-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-email-interests-api
  name: Bloomerang Email Interests API
  description: The Email Interests API from Bloomerang — 2 operation(s) for email interests.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Email Interests
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-email-interests-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-funds-api
  name: Bloomerang Funds API
  description: The Funds API from Bloomerang — 3 operation(s) for funds.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Fund
  tags_raw:
  - Funds
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-funds-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-groups-api
  name: Bloomerang Groups API
  description: The Groups API from Bloomerang — 1 operation(s) for groups.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-groups-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-phones-api
  name: Bloomerang Phones API
  description: The Phones API from Bloomerang — 3 operation(s) for phones.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Phone
  tags_raw:
  - Phones
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-phones-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-pledges-api
  name: Bloomerang Pledges API
  description: The Pledges API from Bloomerang — 5 operation(s) for pledges.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Pledges
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-pledges-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-processors-api
  name: Bloomerang Processors API
  description: The Processors API from Bloomerang — 2 operation(s) for processors.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Processors
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-processors-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-refunds-api
  name: Bloomerang Refunds API
  description: The Refunds API from Bloomerang — 3 operation(s) for refunds.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Refunds
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-refunds-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-relationship-roles-api
  name: Bloomerang Relationship Roles API
  description: The Relationship Roles API from Bloomerang — 2 operation(s) for relationship roles.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Relationship Roles
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-relationship-roles-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-soft-credits-api
  name: Bloomerang Soft Credits API
  description: The Soft Credits API from Bloomerang — 3 operation(s) for soft credits.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Soft Credits
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-soft-credits-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-tasks-api
  name: Bloomerang Tasks API
  description: The Tasks API from Bloomerang — 4 operation(s) for tasks.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-tasks-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-tributes-api
  name: Bloomerang Tributes API
  description: The Tributes API from Bloomerang — 4 operation(s) for tributes.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Tributes
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-tributes-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-users-api
  name: Bloomerang Users API
  description: The Users API from Bloomerang — 5 operation(s) for users.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-users-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
- aid: bloomerang:bloomerang-wallet-items-api
  name: Bloomerang Wallet Items API
  description: The Wallet Items API from Bloomerang — 3 operation(s) for wallet items.
  humanURL: https://bloomerang.com/api/rest-api
  baseURL: https://api.bloomerang.co/v2
  tags:
  - Wallet Items
  properties:
  - type: OpenAPI
    url: openapi/bloomerang-wallet-items-api-openapi.yml
  - type: Documentation
    url: https://bloomerang.com/api/rest-api
common:
- type: CapabilityMap
  url: capabilities/bloomerang-capability-edges.yml
  name: Bloomerang Business Capability Map
- type: AgenticAccess
  url: agentic-access/bloomerang-agentic-access.yml
- type: TrustCenter
  url: security/bloomerang-trust-center.yml
- type: DomainSecurity
  url: security/bloomerang-domain-security.yml
- type: Authentication
  url: authentication/bloomerang-authentication.yml
- type: OAuthScopes
  url: scopes/bloomerang-scopes.yml
- type: GitHubOrganization
  url: https://github.com/Bloomerang
- type: LinkedIn
  url: https://www.linkedin.com/company/bloomerang-donor-management-software
- type: Website
  url: https://bloomerang.com
- type: Documentation
  url: https://bloomerang.com/api
- type: Plans
  url: plans/bloomerang-plans-pricing.yml
- type: RateLimits
  url: rate-limits/bloomerang-rate-limits.yml
- type: FinOps
  url: finops/bloomerang-finops.yml
- url: https://bloomerang.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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A second provider on the same verified email joins the account you already have.