Field note
Firecrawl launched a Developer Index aimed at coding agents: more than 70 million technical documents, READMEs, issues and merged pull requests in a single index, with most sources refreshed daily, reachable through one API, an MCP server, or a CLI setup command, and with no API key required to start. Firecrawl claims the highest recall of any coding-specific index.
The design choice worth noticing is what it indexes. The published example query is a runtime symptom rather than an API name — asking why a retry backoff is not firing on 429 returns a Sidekiq issue thread, a merged pull request in the AWS SDK that adds 429 to the throttling error list, and a Stripe rate-limit doc. Documentation alone rarely answers that question, because the answer lives in the bug report where someone hit the same wall and in the diff that fixed it.
This is the same move as Mintlify exposing a retrieval surface for developer documentation, extended past docs into issues and merged code, and it matters because local coding agents are becoming shared workspaces whose answers need provenance. The coding agents hub tracks how that retrieval layer forms.
The recall claim is the vendor's own and comes without a published benchmark or comparison set. The condition to watch is whether the index publishes a reproducible recall evaluation against a named competitor, because an unmeasured recall claim cannot be distinguished from a broad crawl.