HelloAsso API

Name: HelloAsso API
Brand: HelloAsso API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentPaymentsPayment Processingoauth235 EndpointsREST

For Agents

Initiate checkout intents, list organisations and forms, and look up items and orders on HelloAsso across 35 endpoints.

Install Jentic One Beta

Connect the HelloAsso API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the HelloAsso API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with HelloAsso API.

Initialise a checkout intent for a donation or registration via POST /organizations/{organizationSlug}/checkout-intents

Retrieve a checkout intent and its order once the payment is authorised via GET /organizations/{organizationSlug}/checkout-intents/{checkoutIntentId}

Search the directory of organisations and forms via POST /directory/organizations and POST /directory/forms

GET STARTED

Start building with HelloAsso API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use HelloAsso API for, with concrete tasks.

★ Embedded Donation Checkout

A French non-profit's website embeds donation flows by initialising a HelloAsso checkout intent and redirecting the donor to the returned payment URL. After payment, the website calls GET /organizations/{organizationSlug}/checkout-intents/{checkoutIntentId} to confirm the order and write a receipt record. HelloAsso handles card processing, SEPA, and tax-receipt rules.

Call POST /organizations/myassociation/checkout-intents with amount and itemBody, then poll GET /organizations/myassociation/checkout-intents/{id} until the order is authorised

Event Registration Site

An association launches a paid event by quick-creating a form via /organizations/{organizationSlug}/forms/{formType}/action/quick-create and exposing it on its site. Registration orders are pulled with /organizations/{organizationSlug}/forms/{formType}/{formSlug}/orders for back-office reporting.

Quick-create an event form via the action/quick-create endpoint, then list its registrations via GET /organizations/{slug}/forms/Event/{formSlug}/orders

Directory Discovery for Aggregators

An aggregator site lists French associations and their fundraising campaigns. POST /directory/organizations and POST /directory/forms apply structured filters such as category and location, returning paginated results suitable for index pages and search experiences.

Call POST /directory/forms with a category filter and paginate through the response to populate an index page

AI Agent Donation Assistant

An AI assistant on a French association's site helps donors find the right campaign and complete a donation. Through Jentic, the agent searches for the checkout-intent operation, loads its body schema, and submits the donation amount and donor info on the user's behalf.

Search Jentic for 'create a helloasso checkout intent', load the operation, and execute it with the donor amount and selected form

Key Endpoints

35 endpoints — jentic publishes the only available openapi specification for helloasso api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/organizations/{organizationSlug}/checkout-intents

Initialise a checkout intent

GET

/organizations/{organizationSlug}/checkout-intents/{checkoutIntentId}

Retrieve a checkout intent and its order

POST

/directory/organizations

Search organisations in the directory

POST

/directory/forms

Search forms in the directory

POST

/organizations/{organizationSlug}/forms/{formType}/action/quick-create

Quick-create a simplified event form

GET

/organizations/{organizationSlug}/forms/{formType}/{formSlug}/public

Get public data for a form

GET

/orders/{orderId}

Retrieve a single order

GET

/items/{itemId}

Retrieve a single item

POST

/organizations/{organizationSlug}/checkout-intents

Initialise a checkout intent

GET

/organizations/{organizationSlug}/checkout-intents/{checkoutIntentId}

Retrieve a checkout intent and its order

POST

/directory/organizations

Search organisations in the directory

POST

/directory/forms

Search forms in the directory

POST

/organizations/{organizationSlug}/forms/{formType}/action/quick-create

Quick-create a simplified event form

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

HelloAsso OAuth 2.0 client_id and client_secret are stored encrypted in the Jentic vault. Tokens are minted at execution time — the secrets never enter the agent's chat context.

Intent-based discovery

Agents search by intent (e.g. 'create a donation checkout' or 'list an organisation's forms') and Jentic returns the matching HelloAsso operation with its body schema and required organizationSlug parameter.

Time to first call

Direct integration: 1-2 days to wire up OAuth, checkout-intent polling, and webhook handling. Through Jentic: under an hour — search, load, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Alternative

Stripe API

Stripe is a global payments platform — broader than HelloAsso's France-focused non-profit niche

Choose Stripe for global merchants and full payments breadth; choose HelloAsso when the user is a French association needing tax-receipt-aware donation flows

Alternative

PayPal Payments API

PayPal supports donation buttons and global checkout — alternative to HelloAsso for non-profits without French specifics

Pick PayPal when wallet checkout matters globally; pick HelloAsso for French association compliance

Alternative

Donorbox API

Donorbox is a non-profit donation platform comparable to HelloAsso outside France

Use Donorbox for international non-profit donation flows; use HelloAsso for France-specific associations

Complementary

Ticketmaster Discovery API

Ticketmaster handles large-scale ticketed events while HelloAsso handles association event registrations

Pick Ticketmaster for paid commercial events; pick HelloAsso when the event is run by a French non-profit

FAQs

Specific to using HelloAsso API through Jentic.

Why is there no official OpenAPI spec for HelloAsso API?

HelloAsso publishes a Swagger UI on api.helloasso.com/v5/swagger but the underlying OpenAPI is not directly redistributed. Jentic generates and maintains this spec so AI agents and developers can call HelloAsso via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the HelloAsso API use?

HelloAsso uses OAuth 2.0 with client credentials issued from your association's HelloAsso account. Through Jentic, the client_id and client_secret live in the encrypted vault and the access token is minted at execution time.

Can I take a donation through the HelloAsso API?

Yes. Initialise a checkout intent via POST /organizations/{organizationSlug}/checkout-intents, redirect the donor to the returned payment URL, and confirm the order via GET /organizations/{organizationSlug}/checkout-intents/{checkoutIntentId}.

What are the rate limits for the HelloAsso API?

The OpenAPI spec does not publish hard rate limits; HelloAsso applies fair-use limits per OAuth client. For directory crawls, paginate /directory/organizations and /directory/forms instead of polling them in tight loops.

How do I create a checkout intent through Jentic?

Run pip install jentic, have the agent search for 'create a helloasso checkout intent', load POST /organizations/{organizationSlug}/checkout-intents, and execute it with totalAmount, itemBody, and the payer details.

Does HelloAsso support event registration as well as donations?

Yes. HelloAsso models events as forms with formType=Event. Quick-create a registration form via the action/quick-create endpoint, then list registrations via GET /organizations/{slug}/forms/Event/{formSlug}/orders.