NationBuilder Political CRM API
NationBuilder REST API for political campaign and organizing CRM platform. Enables AI agents to manage people and contact records, track tags and memberships, handle event management and RSVPs, manage fundraising and financial data, process survey results, manage blog and website content, integrate voter file data, and sync organizing data with email and digital communication tools.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Supporter personal and political data. SOC2. OAuth2 and API key. US data residency. Non-partisan platform.
⚡ Reliability
Best When
A political campaign, advocacy organization, nonprofit, or community group using NationBuilder wants AI agents to automate supporter engagement, event management, donation tracking, and digital outreach workflows.
Avoid When
PRIVACY: Supporter personal data and political activity records are sensitive. Voter file data has state regulatory requirements. Automated contact must comply with CAN-SPAM, CASL, and TCPA.
Use Cases
- • Managing supporter contact records and engagement history from organizing agents
- • Processing event RSVPs and volunteer coordination from campaign operations agents
- • Tracking membership and donation data from nonprofit development agents
- • Syncing people data with email marketing tools from digital outreach agents
Not For
- • Pure for-profit CRM without community organizing and campaign focus
- • Healthcare CRM without political/advocacy organizing workflows
- • High-volume financial processing without organizing-centric workflows
Interface
Authentication
NationBuilder uses OAuth 2.0 and API key authentication. Nation-level credentials. OAuth for third-party app development. API keys for server-to-server. Scopes control data access. Public developer platform with comprehensive docs.
Pricing
Los Angeles company. Founded 2009. Non-partisan organizing platform used by campaigns, advocacy orgs, and community groups globally. Used by campaigns across the political spectrum. 9,000+ organizations.
Agent Metadata
Known Gotchas
- ⚠ PRIVACY: Supporter personal and political activity data requires careful handling
- ⚠ No public MCP server — REST API with OAuth2 or API key
- ⚠ Non-partisan platform — works for campaigns across political spectrum
- ⚠ Voter file data integration has state regulatory requirements
- ⚠ Automated contact must comply with CAN-SPAM, CASL, TCPA
- ⚠ US data residency only — verify for international political campaigns
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.