Fastly alternatives
The highest-scoring alternative to Fastly is Cloudflare at 98/100 on the AgentReady, against 60/100 for Fastly.
All scored in CDN & Edge.
What Cloudflare does that Fastly does not
Cloudflare passes clear product positioning, llms-full.txt / full agent docs, agent compatibility verified, and Fastly fails them. That is the whole of the gap between the two scores, so if none of those matter to your agent the ranking above overstates the difference.
Why people look for an alternative
Fastly fails clear product positioning, llms-full.txt / full agent docs, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.
Where Fastly loses the points
| Pillar | Fastly | What it measures |
|---|---|---|
| Discover | 80 | Can an agent find it at all: sitemap, robots, structured data. |
| Understand | 46 | Is there a spec, an llms.txt, a machine-readable description. |
| Adopt | 80 | Signup, keys, SDKs, and whether a human has to be involved. |
| Operate | 35 | Rate-limit headers, errors, status, and behaviour under load. |
Fastly is weakest on operate at 35/100. Missing rate-limit headers mean an agent finds the limit by hitting it. If that is the part your agent depends on, take the ranking above seriously; if it is not, Fastly may still be the right pick.
What an agent runs into with Fastly
These are the findings from the last audit on 2026-09-08. Each one is a place unattended software stops, which is the practical reason to look at the list above.
- Flesh out the OpenAPI: paths, schemas, and descriptions.
- Document error responses as an enum in your OpenAPI.
- Let agents create API keys programmatically.
- Return X-RateLimit / Retry-After headers so agents pace themselves.
- Publish an AGENTS.md or llms-full.txt with full agent context.
- Add request examples to your API reference.
- Add response examples to your API reference.
- Support an Idempotency-Key so retries are safe.
What this category actually supports
Across the 8 products scored in CDN & Edge, cache at the edge / cdn is offered by 88%.
An agent can get this list directly: resolve("alternative to Fastly") over the MCP server, or GET /v1/categories/cdn-edge.