# Apperio

**Canonical:** https://apis.io/providers/apperio/  
**Website:** https://www.apperio.com  
**APIs profiled:** 5

Apperio is a legal spend management and matter management platform for in-house legal teams and the law firms they work with. It connects directly to law-firm time-and-billing systems to give continuous, real-time visibility into billed and unbilled ("work in progress") legal spend, benchmarking to negotiate rates, and AI-assisted e-billing review against Outside Counsel Guidelines. The Apperio REST API exposes the same secure data that powers the platform's analytics — legal-spend analytics, matter (engagement) and invoice discovery, matter tagging, and e-billing invoice approval workflows — across its two-sided business/law-firm model. Apperio is a Seedcamp portfolio company and is now part of Persuit.

## Kin Score — 50.9 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 50.9).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 52.1 |
| Governance | 11.5 |
| Operational Transparency | 44.7 |
| Developer Ergonomics | 62.5 |
| Commercial Clarity | 50.0 |

## Agent readiness — 44.4 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (5)

- **Apperio Analytics API** — A set of non resource based endpoints that power various components within Apperio. These endpoints primarily support discovery and data investigation.
- **Apperio E-billing API** — The e-billing endpoints provide access to the e-billing invoices in Apperio. They allow you to retrieve information about the invoices and the approval workflow, and also to app...
- **Apperio Filter API** — The filter endpoints provide resource discovery in Apperio. This has two basic mechanisms. Firstly there are the resource discovery endpoints. These are: * `/api/v1/filter/engag...
- **Apperio Matter information API** — A set of endpoints returning information about a specific matter.
- **Apperio Users API** — The users endpoints allow you to manage your API tokens. Tokens are used to authenticate requests to the Apperio API. You can list your existing tokens, delete tokens that are n...

## MCP servers (1)

- **apperio-mcp.yml**

## Agentic access (1)

- **Apperio Agentic Access** — 30 operations · 17 acting

## Security (3)

- **Apperio Authentication** — apiKey · 1 scheme
- **Apperio Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Apperio Trust Center** — ISO/IEC 27001, SOC 2 Type 2, Cyber Essentials

## Tags

Legal, Legal Spend Management, Legal Tech, E-Billing, Matter Management, Legal Operations, Analytics, Company

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