Sourcegraph

The GraphQL API covers code search (with Sourcegraph's query language), repository management, code intelligence (definitions, references, hover information), and batch changes (automated PRs across repositories). The search API is the primary agent integration surface — agents submit structured search queries and receive matching code locations, file contents, and repository context. Batch Changes enables agents to programmatically generate and track multi-repository code modifications.

Reliability for Sourcegraph Cloud is vendor-managed. Self-hosted Sourcegraph reliability is the team's operational responsibility — the platform requires indexing infrastructure that scales with repository count and size. The search infrastructure is designed for high-throughput query patterns appropriate for agent-driven analysis workflows.

Sourcegraph is a code intelligence and search platform that enables cross-repository search and analysis at scale — finding all usages of a function across 1000 repos, searching for security-vulnerable patterns across a codebase, or tracking how APIs are adopted across an organization's repositories. For agents involved in codebase analysis, security scanning, or automated refactoring, Sourcegraph's GraphQL API provides programmatic access to the search and code intelligence layer that manual text search cannot practically deliver at scale.

Authentication uses access tokens for the GraphQL API. Sourcegraph access tokens provide access to repositories configured in the Sourcegraph instance. For Sourcegraph Cloud, teams use personal access tokens; for self-hosted instances, service accounts with appropriate repository access are the appropriate automation credential.

Documentation is comprehensive and the GraphQL API is self-documenting with introspection. The search query language documentation is thorough — agents building code search capabilities should invest time in the query language reference to build effective searches. The Batch Changes documentation covers the programmatic multi-repo modification pattern clearly.