Goodstack
Goodstack (formerly Percent) is an impact platform whose REST API lets businesses build charitable giving, nonprofit verification, and fund disbursement into their own products. The Goodstack Services API covers monetary donations (direct and via a hosted donation gateway), a global registry of verified nonprofit and educational organisations, organisation name search, eligibility and monitoring subscriptions, agent verifications, validation requests and submissions, Gift Aid declarations, categories, and webhook subscriptions. Goodstack handles the vetting, validation, and timely disbursement of donations to good causes across multiple countries and currencies. The API is organised around REST, uses API-key authentication (publishable pk_ and secret sk_ keys), returns JSON with standard HTTP status codes, and offers a sandbox environment.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Goodstack the way a machine reads it — 47 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Goodstack scores 51.1/100 (developing), with a separate agent-readiness read of 42/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Goodstack's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/goodstack/"
title="Goodstack on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/goodstack.svg"
alt="Goodstack Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/goodstack/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/goodstack/"
title="Goodstack on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/goodstack/card.svg"
alt="Goodstack Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Goodstack
Each block below is one kind of artifact we hold for Goodstack. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 21
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Goodstack Activities API
The Activities API from Goodstack — 2 operation(s) for activities.
Goodstack Agent Verifications API
Agent verification is a one-off check. It is used to confirm that: 1. The person applying is who they say they are. 2. They represent the nonprofit. They are not editable once c...
Goodstack Categories API
Categories represent collections of Organisations, which can be used to group and filter Organisations.
Goodstack Countries API
The Countries API from Goodstack — 1 operation(s) for countries.
Goodstack Donation Sessions API
The Donation Sessions API from Goodstack — 2 operation(s) for donation sessions.
Goodstack Donations API
A Donation object tracks the lifecycle of a Donation from creation and payment to disbursement to the nonprofit. Donations can be created during a Donation Session by the Hosted...
Goodstack Eligibility Subscriptions API
The Eligibility Subscriptions API from Goodstack — 3 operation(s) for eligibility subscriptions.
Goodstack Gift Aid API
The Gift Aid API from Goodstack — 2 operation(s) for gift aid.
Goodstack Monitoring Subscriptions API
The Monitoring Subscriptions API from Goodstack — 3 operation(s) for monitoring subscriptions.
Goodstack Org name search API
The Org name search API from Goodstack — 1 operation(s) for org name search.
Goodstack Organisation API
The Organisation API from Goodstack — 1 operation(s) for organisation.
Goodstack Organisations API
Nonprofits are represented by the Organisation object. You can retrieve and query for Organisations.
Goodstack Registries API
The Registries API from Goodstack — 2 operation(s) for registries.
Goodstack Users API
The User object represents a user of your application. It can be used to track Donations that belong to that user.
Goodstack Validation Invites API
The Validation Invites API from Goodstack — 1 operation(s) for validation invites.
Goodstack Validation Request Documents API
The Validation Request Documents API from Goodstack — 1 operation(s) for validation request documents.
Goodstack Validation Requests API
If you want to know if a nonprofit exists in an official registry, create a Validation Request and we will check it for you. Documentary evidence can be attached to a Validation...
Goodstack Validation Submission Configuration API
The Validation Submission Configuration API from Goodstack — 2 operation(s) for validation submission configuration.
Goodstack Validation Submission Documents API
The Validation Submission Documents API from Goodstack — 2 operation(s) for validation submission documents.
Goodstack Validation Submissions API
The Validation Submissions API from Goodstack — 2 operation(s) for validation submissions.
Goodstack Webhook Subscriptions API
The Webhook Subscriptions API from Goodstack — 2 operation(s) for webhook subscriptions.
Scroll within the panel for all 21 ·
Open Collections 22
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONGoodstack Services Activities API
OPEN COLLECTIONGoodstack Services Activities Agent Verifications API
OPEN COLLECTIONGoodstack Services Activities Categories API
OPEN COLLECTIONGoodstack Services Activities Countries API
OPEN COLLECTIONGoodstack Services Activities Donation Sessions API
OPEN COLLECTIONGoodstack Services Activities Donations API
OPEN COLLECTIONGoodstack Services Activities Eligibility Subscriptions API
OPEN COLLECTIONGoodstack Services Activities Gift Aid API
OPEN COLLECTIONGoodstack Services Activities Monitoring Subscriptions API
OPEN COLLECTIONGoodstack Services Activities Org name search API
OPEN COLLECTIONGoodstack Services Activities Organisation API
OPEN COLLECTIONGoodstack Services Activities Organisations API
OPEN COLLECTIONGoodstack Services Activities Registries API
OPEN COLLECTIONGoodstack Services Activities Users API
OPEN COLLECTIONGoodstack Services Activities Validation Invites API
OPEN COLLECTIONGoodstack Services Activities Validation Requests API
OPEN COLLECTIONGoodstack Services Activities Validation Submissions API
OPEN COLLECTIONGoodstack Services Activities Webhook Subscriptions API
OPEN COLLECTIONScroll within the panel for all 22 ·
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Goodstack Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Goodstack — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Access & Security 3
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/goodstack · machine-readable index on apis.io
This is an independent, third-party profile of Goodstack, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put 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.