Palantir SDK Selection and OAuth Setup

Overview

Choose the SDK from the job: a generated OSDK for application-specific Ontology access, or the Platform SDK for broader Foundry/AIP REST APIs. Then configure OAuth through Developer Console with the minimum grant, scope, resources, and operations.

Prerequisites

Identify the application type, language, Foundry environment, acting user or service user, required APIs, and accountable owner.
List the minimum Ontology entities or Platform API operations before creating credentials.
Read references/official-docs.md and use Developer Console's generated Start developing instructions for the target application.
Prepare an approved secret store and non-production verification resource.

Current Contract

Foundry APIs use OAuth 2.0 bearer tokens.
Authorization Code grant is for applications acting on behalf of users; Client Credentials grant is for backend services acting as a service user.
Developer Console application restrictions limit available Ontology resources or Platform SDK operations in addition to requested scopes and principal permissions.
Temporary user API tokens may support development, but production applications should use the appropriate OAuth grant.

Authentication

Never ask for, print, or commit a bearer token, client secret, authorization code, or refresh token. Store secrets only in an approved manager. Record the client ID only where allowed, and inventory grant type, redirect URLs, requested scopes, application restrictions, service-user permissions, owners, and rotation.

Instructions

Choose generated OSDK or Platform SDK and document why the other surface is insufficient or unnecessary.
Create or select the Developer Console application and configure the user-delegated or backend-service grant.
Restrict the client to the required Ontology entities or Platform SDK operations and request the minimum scopes.
Install and pin the generated/package SDK plus its compatible client using the application-specific instructions.
Verify a bounded read in the target environment, test denial outside the intended restriction, and record secret rotation and revocation.

Tool Discipline

Use Glob to locate candidate repositories, manifests, configurations, and evidence without widening scope.
Use Grep to find relevant identifiers, declarations, permissions, errors, and stale claims.
Use Read to inspect the smallest required files and authoritative evidence.
Use Write only for a new approved local draft, test, manifest, or evidence artifact.
Use Edit only for a bounded approved change whose rollback is known.
Do not use file tools as a substitute for authenticated Foundry operations or owner approval.

Approval Boundaries

The application owner approves the OAuth client and redirect behavior; the Ontology or platform owner approves resource restrictions; the security owner approves secret storage; the data owner approves the verification read.

Output

An SDK decision, pinned dependency set, Developer Console configuration inventory, grant and principal, scope/restriction matrix, secret-store references, positive/negative verification, and rotation/revocation ownership.

Error Handling

Condition	Response
A token works outside intended resources	Tighten application restrictions and principal permissions, revoke affected credentials, and retest.
A client-credentials request is forbidden	Check service-user permissions, scopes, and application restrictions independently.
Generated code disagrees with a copied example	Use the target application's generated instructions and current SDK package as authoritative.
A secret appears in source or logs	Revoke and rotate it immediately, remove it from history, and regenerate sanitized evidence.

Examples

Example 1

Bootstrap a TypeScript OSDK user application with Authorization Code grant, one selected object type, one Action, explicit redirect URLs, and a negative test for an unselected resource.

Example 2

Configure a Python Platform SDK backend service with Client Credentials grant, only the required operation restrictions and scopes, a secret-manager reference, and a bounded read verification.

Validation

The chosen SDK corresponds to the required API surface.
Grant type and acting principal match the application architecture.
Scopes, application restrictions, and Foundry permissions are all minimum and separately documented.
Dependencies are pinned to the generated/current compatible versions.
Revocation, rotation, and negative-access tests succeed.

Resources

Official documentation and contract notes
Re-check the dated contract before any live operation.
Treat unresolved or changed vendor behavior as a stop condition.

palantir-install-auth