# Fastly Header API

**Canonical:** https://apis.io/apis/fastly/fastly-header-api/  
**Provider:** Fastly — https://apis.io/providers/fastly/  
**Base URL:** https://api.fastly.com  
**Documentation:** https://www.fastly.com/documentation/reference/api/services/

Fastly Header API is one of 80 APIs that [Fastly](https://apis.io/providers/fastly/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. Tagged areas include Header. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

Operations for managing header manipulation rules that add, modify, or remove HTTP headers during request and response processing.

## Machine-readable artifacts (26)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/fastly/refs/heads/main/openapi/fastly-header-api-openapi.yml
- **Documentation** — https://www.fastly.com/documentation/reference/api/services/
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/fastly/refs/heads/main/graphql/fastly-graphql.md
- **Documentation** — https://www.fastly.com/documentation/reference/api/purging/
- **Documentation** — https://www.fastly.com/documentation/reference/api/logging/
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/fastly/refs/heads/main/asyncapi/fastly-streaming-asyncapi.yml
- **Documentation** — https://www.fastly.com/documentation/reference/api/metrics-stats/
- **Documentation** — https://www.fastly.com/documentation/reference/api/tls/
- **Documentation** — https://www.fastly.com/documentation/reference/api/vcl-services/
- **Documentation** — https://www.fastly.com/documentation/reference/api/account/
- **Documentation** — https://www.fastly.com/documentation/reference/api/auth-tokens/
- **Documentation** — https://www.fastly.com/documentation/reference/api/acls/
- **Documentation** — https://www.fastly.com/documentation/reference/api/dictionaries/
- **Documentation** — https://www.fastly.com/documentation/guides/compute/
- **Documentation** — https://www.fastly.com/documentation/reference/api/ngwaf/
- **Documentation** — https://www.fastly.com/documentation/reference/api/domain-management/
- **Documentation** — https://www.fastly.com/documentation/reference/api/products/
- **Documentation** — https://www.fastly.com/documentation/reference/api/observability/
- **Documentation** — https://www.fastly.com/documentation/reference/api/api-security/
- **Documentation** — https://www.fastly.com/documentation/reference/api/ddos-protection/
- **Documentation** — https://www.fastly.com/documentation/reference/api/client-side-protection/
- **Documentation** — https://www.fastly.com/documentation/reference/api/publishing/
- **Documentation** — https://www.fastly.com/documentation/reference/api/load-balancing/
- **Documentation** — https://www.fastly.com/documentation/reference/api/utils/
- **Documentation** — https://www.fastly.com/products/ai
- **Documentation** — https://www.fastly.com/products/object-storage

## Other Fastly APIs (12)

- [Fastly ACL API](https://apis.io/apis/fastly/fastly-acl-api/)
- [Fastly ACL Entry API](https://apis.io/apis/fastly/fastly-acl-entry-api/)
- [Fastly Alerts API](https://apis.io/apis/fastly/fastly-alerts-api/)
- [Fastly API Discovery API](https://apis.io/apis/fastly/fastly-api-discovery-api/)
- [Fastly Automation Tokens API](https://apis.io/apis/fastly/fastly-automation-tokens-api/)
- [Fastly Backend API](https://apis.io/apis/fastly/fastly-backend-api/)
- [Fastly Bot Management API](https://apis.io/apis/fastly/fastly-bot-management-api/)
- [Fastly Buckets API](https://apis.io/apis/fastly/fastly-buckets-api/)
- [Fastly Cache Settings API](https://apis.io/apis/fastly/fastly-cache-settings-api/)
- [Fastly Chat Completions API](https://apis.io/apis/fastly/fastly-chat-completions-api/)
- [Fastly Condition API](https://apis.io/apis/fastly/fastly-condition-api/)
- [Fastly Config Store API](https://apis.io/apis/fastly/fastly-config-store-api/)

## Tags

Header

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