# .txt chat API

**Canonical:** https://apis.io/apis/txt/txt-chat-api/  
**Provider:** .txt — https://apis.io/providers/txt/  
**Base URL:** https://api.dottxt.ai/v1  
**Documentation:** https://docs.dottxt.ai/api/overview

.txt chat API is one of 6 APIs that [.txt](https://apis.io/providers/txt/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Chat. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Create model responses for chat conversations. Supports: - **Multi-turn dialogue** with conversation history - **System prompts** to control model behavior - **Tool calling** for function execution and structured outputs - **Streaming** for real-time token delivery - **Sampling parameters** like temperature, top_p, and frequency penalties

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/txt/refs/heads/main/openapi/txt-chat-api-openapi.yml
- **Documentation** — https://docs.dottxt.ai/api/overview
- **APIReference** — https://docs.dottxt.ai/api/chat-completions

## Other .txt APIs (5)

- [.txt batches API](https://apis.io/apis/txt/txt-batches-api/)
- [.txt embeddings API](https://apis.io/apis/txt/txt-embeddings-api/)
- [.txt files API](https://apis.io/apis/txt/txt-files-api/)
- [.txt models API](https://apis.io/apis/txt/txt-models-api/)
- [.txt responses-api API](https://apis.io/apis/txt/txt-responses-api-api/)

## Tags

Chat

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