# Headnote

**Canonical:** https://apis.io/providers/headnote/  
**Website:** https://headnote.com/  
**APIs profiled:** 0

Headnote is a legal payments and accounts-receivable platform built specifically for law firms. Founded in 2016 by attorney Sarah Schaaf, it lets firms accept trust-compliant credit card and eCheck (ACH) payments via shareable payment links and a hosted client payment portal, then automates collections, AR tracking, and client NPS/satisfaction reporting. Headnote is designed to be 100% compliant with IOLTA rules, the ABA Model Rules of Professional Conduct, and lawyer trust/operating account requirements across all 50 states, and integrates with existing billing and practice-management software by attaching a Headnote payment link to invoices. Card and bank data are tokenized with Stripe and Plaid and the platform runs on AWS with PCI-compliant, encrypted-at-rest-and-in-transit infrastructure. Headnote was acquired by ASG LegalTech (an Alpine Investors platform, alongside PracticePanther, Bill4Time, and MerusCase) in 2020. It was surfaced in the API Evangelist network as a portfolio company of Uncork Capital. Headnote does not publish a public developer API, OpenAPI, or developer portal; this profile is an identity record.

## Kin Score — 13.9 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 13.9).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Payments**: 29.7 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Headnote Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Legal, Legal Tech, Payments, Accounts Receivable, Law Firms, eCheck, ACH, Credit Card Payments, Trust Accounting, IOLTA, Compliance

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/headnote/). Scores are computed from the provider's own public artifacts under a published rubric.