# FirstSales Analyze API

**Canonical:** https://apis.io/apis/firstsales-io/firstsales-io-analyze-api/  
**Provider:** FirstSales — https://apis.io/providers/firstsales-io/  
**Base URL:** https://firstsales.io  
**Documentation:** https://developer.firstsales.io/api-reference/introduction

FirstSales Analyze API is one of 7 APIs that [FirstSales](https://apis.io/providers/firstsales-io/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 2 JSON Schema definitions. Tagged areas include Analyze. The published artifact set on APIs.io includes an OpenAPI specification and 2 JSON Schemas.

AI-assisted cold-email content analysis.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| POST | `/api/v1/analyze/spam` | Score email content for spam-trigger risk |
| POST | `/api/v1/analyze/subject-line` | Score and improve a cold-email subject line |
| POST | `/api/v1/analyze/cold-email` | Grade a full cold-email draft across 8 deliverability/effectiveness dimensions |
| POST | `/api/v1/analyze/email-body` | Score and improve a cold-email body |
| POST | `/api/v1/analyze/personalization` | Detect and score personalization signals in cold-email content |

## Machine-readable artifacts (4)

- **OpenAPI** — https://artifacts.apis.io/firstsales-io/openapi/firstsales-io-analyze-api-openapi.yml
- **JSONSchema** — https://artifacts.apis.io/firstsales-io/json-schema/firstsales-io-cold-email-analysis-result-schema.json
- **JSONSchema** — https://artifacts.apis.io/firstsales-io/json-schema/firstsales-io-personalization-analysis-result-schema.json
- **APIsJSON** — https://artifacts.apis.io/firstsales-io/apis.yml

## Other FirstSales APIs (6)

- [FirstSales DNS API](https://apis.io/apis/firstsales-io/firstsales-io-dns-api/)
- [FirstSales Domain API](https://apis.io/apis/firstsales-io/firstsales-io-domain-api/)
- [FirstSales Email API](https://apis.io/apis/firstsales-io/firstsales-io-email-api/)
- [FirstSales Mail Tester API](https://apis.io/apis/firstsales-io/firstsales-io-mail-tester-api/)
- [FirstSales System API](https://apis.io/apis/firstsales-io/firstsales-io-system-api/)
- [FirstSales Tutorials API](https://apis.io/apis/firstsales-io/firstsales-io-tutorials-api/)

## Tags

Analyze

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/firstsales-io/firstsales-io-analyze-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/firstsales-io/.