TreasurySpring Public API

Build investment workflows on TreasurySpring

Authenticate with OAuth, list available entities and indications, submit subscriptions, and follow the holding lifecycle through redemption — all over a single REST API.

Get started API reference

Sandbox available · OAuth 2.0 · OpenAPI 3.1

request.sh

# Request an access token, then list entities
curl 'https://api.sandbox.treasuryspring.com/oauth/token' \
  -H 'Authorization: Basic <base64_client_id_and_secret>' \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'grant_type=client_credentials'

curl 'https://api.sandbox.treasuryspring.com/api/v1/entity' \
  -H 'Authorization: Bearer <access_token>'

Documentation

Where to go next

Authentication

Grant types, sandbox access, and how to obtain an OAuth access token.

Quickstart

From your first token to your first holding, in five copy-pasteable steps.

FTF lifecycle

The full subscription-to-holding status flow, with the events emitted at each transition.

API surface

Core endpoints

Every endpoint speaks JSON, uses Bearer authentication, and is exercised from the embedded API explorer.

Entities

List the organisations your API user can act on behalf of.

GET/entity

Indications

Find pre-subscription investment opportunities by entity.

GET/indication/{code}

Subscriptions

Submit a subscription request and track it through to a holding.

POST/subscribe

Holdings

The authoritative investment record once issuance completes.

GET/holding/{uid}

Events

Cursor-based event stream for reconciling lifecycle changes.

GET/event

Webhooks

POST/webhook

Ready when you are

From subscription to holding in five calls

The quickstart walks through authentication, listing entities, finding an indication, submitting a subscription, and retrieving the resulting holding.

Get started