Best Cross-Repo Code Intelligence Tools in 2026

No one tool does all of cross-repo code intelligence, so pick by job. Sourcegraph leads search and precise navigation across thousands of repositories, Moderne leads deterministic refactors at that scale, CodeScene finds coupling between repos from git history, and repowise builds the service graph from the code, matching API contracts provider to consumer for people and coding agents. If you only need org-wide grep and your code is on GitHub, GitHub code search is already included in your account.

We build repowise. We read the docs, pricing page or repository of every tool below on 29 October 2026, and ran repowise on seven public repositories the same day; that output is shown below.

What cross-repo code intelligence means

Cross-repo code intelligence is any analysis that follows code across repository boundaries: finding text, jumping to a definition in another repo, knowing which service calls an endpoint, seeing which files in different repos change together, or applying one change to many repos. You hit the need when a change to one service's API has to be checked against code in repositories you do not have cloned.

Cross-repo code intelligence tools compared

For each tool: which of those jobs its own docs say it covers, where its data comes from (parsed code, compiler indexes, git history, hand-written metadata or a model), deployment, October 2026 price, and whether a coding agent can query it over MCP.

What a code-derived service graph looks like

We indexed the seven repositories of the public Sock Shop microservices demo as one repowise workspace on 29 October 2026, with repowise 0.59.0, no model and no API key, in 1 minute 58 seconds on a Windows laptop. The repos are a Node.js front end and six services in Go and Java (Spring): carts, catalogue, orders, payment, shipping and user.

cd sockshop                 # front-end/, carts/, catalogue/, orders/, payment/, shipping/, user/
repowise init . --yes --no-prose --no-editor-setup --no-hook
repowise workspace diagnostics

repowise workspace diagnostics reports what it extracted per repo and how much of it linked:

┌───────────┬───────────┬───────────┬─────────────────────┐
│ Repo      │ Providers │ Consumers │ By type             │
├───────────┼───────────┼───────────┼─────────────────────┤
│ carts     │         9 │         0 │ http:9/0            │
│ catalogue │        10 │         6 │ data:3/6, http:7/0  │
│ front-end │        37 │        22 │ http:37/22          │
│ orders    │         2 │         0 │ http:2/0            │
│ payment   │         3 │         0 │ http:3/0            │
│ shipping  │         5 │         0 │ http:4/0, topic:1/0 │
│ user      │        11 │         0 │ http:11/0           │
└───────────┴───────────┴───────────┴─────────────────────┘

  13 cross-repo link(s) matched from 77 provider(s) and 28 consumer(s).

The 13 links fold into a system graph of typed edges, each pointing from the caller to the service it calls. Read from .repowise-workspace/system_graph.json:

front-end -> carts      http  exact  6 contracts
front-end -> user       http  exact  5 contracts
front-end -> catalogue  http  exact  1 contract
front-end -> orders     http  exact  1 contract

That is the front end's call map across four services, read from HTTP calls in Node.js and from Spring and Go routers, three languages in all. When a provider file changes, the workspace names the consumer code exposed to it:

repowise workspace impacted-tests carts:src/main/java/works/weave/socks/cart/controllers/ItemsController.java

│ front-end │ api/cart/index.js │ http::GET::/carts/{param}/items            │
│ front-end │ api/cart/index.js │ http::DELETE::/carts/{param}/items/{param} │
│ front-end │ api/cart/index.js │ http::POST::/carts/{param}/items           │
│ front-end │ api/cart/index.js │ http::PATCH::/carts/{param}/items          │

Four front-end calls depend on routes in ItemsController.java, all in one file of another repository. The command could not tie them to a front-end test, and its output says so instead of returning an empty list: No tests found: 4 link(s) could not be determined. The diagnostics table also shows providers with no consumer in the workspace (carts exposes 9 HTTP routes and consumes none); those are candidates for dead endpoints, to check against external clients before deleting anything.

The tools, one by one

Sourcegraph: search and precise navigation across thousands of repos

Sourcegraph searches and navigates code across many repositories and code hosts. Search-based navigation works out of the box; precise navigation uses SCIP indexes, uploaded from CI or built by auto-indexing, and "tracks references across repositories and package dependencies". Batch Changes opens and tracks pull requests across many repos, and the MCP server gives agents 16 tools including go_to_definition, find_references and deepsearch. find_references takes a single repo, so cross-repo references come through SCIP-backed navigation, not that tool.

The pricing page lists one plan, Enterprise, starting at $16K a year with a minimum annual contract, and lists single-tenant cloud and self-hosted deployment. The core product is not publicly available; Zoekt and SCIP are Apache-2.0. Pick it if you need compiler-grade go-to-definition across hundreds of repos and can fund an enterprise contract. Our Sourcegraph alternatives post covers the cheaper routes.

GitHub code search: org-wide search included with GitHub

GitHub code search searches every repository you can access with org: or several repo: qualifiers joined by OR, supports regex, and finds definitions with symbol:. The web index covers only the default branch, skips files over 350 KiB, and caps results at 100. Code navigation (jump to definition) stays inside one repository. Agents reach it through the search_code tool in GitHub's MCP server; GitHub's REST code-search API is capped at 10 requests a minute. For "where is this used anywhere in the org" on GitHub-hosted code, it is the obvious first tool.

Moderne and OpenRewrite: one refactor, applied everywhere

Moderne builds OpenRewrite's Lossless Semantic Trees (type-attributed syntax trees) for every repository, then runs deterministic recipes across all of them: framework upgrades, CVE fixes, API migrations, with pull requests opened for you. It also searches types and methods across repos and exposes an MCP server (mod mcp, marked experimental) with tools such as find_types, find_implementations and run_recipe. The OpenRewrite core and original recipes are Apache-2.0; newer language modules and many recipes are under Moderne's source-available or proprietary licenses (licensing).

Moderne's pricing lists typical programs at $250K, $2M and $5M a year. Pick it if you run a large estate, mostly JVM, and need the same change applied safely everywhere.

CodeScene: coupling between repos from git history

CodeScene's change coupling finds files that change together, in the same commit, by the same author within a time window, or under the same ticket ID, and it "works across Git repository boundaries"; CodeScene's guide uses it to "uncover inter-service dependencies in a microservice architecture". The pricing page does not say which plan includes the cross-repo view, so ask before buying. It adds hotspots and team-level views on top. Plans are 18 EUR (Standard) and 27 EUR (Pro) per active author a month, billed yearly, on cloud or on-prem (pricing).

Pick it if you want behavioural evidence of hidden coupling, together with hotspots and team boundaries, from a commercial vendor.

Nx Polygraph: a repo-to-repo graph for Nx shops

Nx Polygraph, announced in June 2026, connects many repositories into one Workspace Graph that shows which repos consume which shared libraries, so you can see impact before a breaking change. Repositories that do not use Nx can join as metadata-only workspaces. Nx's docs list it as an Nx Cloud Enterprise feature, and a September 2026 Nx post describes it as free during early access.

It fits teams that already run Nx and want package-level dependencies across repos inside the same tool.

Backstage: the declared map of services and owners

Backstage is the open-source developer portal framework (Apache-2.0). Its software catalog draws dependsOn, providesApi and consumesApi relations between components from YAML files teams keep in each repository. It does not read code, so the graph is as current as the YAML. An MCP actions plugin (@backstage/plugin-mcp-actions-backend) can expose catalog actions to agents.

Pick it if you want a portal and a catalog of record, and pair it with a code-derived tool to check the catalog against what the code calls.

Augment Context Engine: semantic retrieval across repos for agents

Augment's Context Engine indexes selected repositories in its remote mode and serves relevant code to any MCP client through a codebase-retrieval tool, with cross-repo context as a stated strength. Plans start at $20 a month, and each MCP query is billed in tokens at about $0.03 to $0.06. It returns ranked snippets, not a graph you can traverse. Remote mode needs a GitHub App install and a choice of repositories, and there is no infrastructure to run.

GitNexus: repo groups linked through contracts

GitNexus indexes each repository into a local knowledge graph, and its repository groups extract contracts and link them across repos, with group impact for cross-repo blast radius and two group tools over MCP. A unified graph across repositories is part of its Enterprise tier. The license is PolyForm Noncommercial 1.0.0, so commercial use needs a paid license; for personal or research work it gives you a local graph with cross-repo links.

repowise: a service graph built from the code, for people and agents

A repowise workspace indexes several repositories together. Each repo keeps its own graph, wiki, health and search, and the workspace adds the cross-repo layer:

• Contracts matched provider to consumer: HTTP routes and calls across JavaScript and TypeScript, Python, Java and Kotlin, Go, C#, PHP, Ruby, Rust and Apex frameworks; gRPC from .proto files; Kafka, RabbitMQ, NATS, SQS and other topics; WebSocket events; and database tables. Each link is exact or a lower-confidence candidate.
• A system graph of services with typed edges (http, grpc, event, package, db, co_change), drawn as a live system map in repowise serve.
• Co-change across repos from git history, kept apart from structural edges so "changes together" is never shown as "calls".
• Cross-repo blast radius (also an opt-in MCP tool, get_blast_radius), a breaking-change guard that diffs contracts on every update, and test impact in consumer repos.
• Architecture rules: repowise workspace check fails CI when a service depends on one it is not allowed to, or when services form a cycle.

Agents get one MCP server for every repo in the workspace; search_codebase, get_dead_code, get_overview and get_why accept repo="all", and the PR-mode get_risk adds the consumers a change could break. On the hosted side, Pro includes single-owner workspaces and Teams shares them across a team.

Pick it if your services live in separate repos and you want the dependency map from the code itself.

Also worth knowing: Zoekt and OpenGrok

For self-hosted search alone, Zoekt (Apache-2.0) is the trigram search engine behind Sourcegraph search and can mirror a whole GitHub organization, and OpenGrok (CDDL-1.0, actively released) is Oracle's search and cross-reference engine for many repositories and version control systems. Neither builds a cross-repo graph.

How to choose a cross-repo code intelligence tool

• "Where is this used anywhere?" GitHub code search if you are on GitHub; Sourcegraph or Zoekt when you need more scale, precision or code hosts.
• "Jump to the definition in the other repo." Sourcegraph precise navigation.
• "Which services call this endpoint, and what breaks if I change it?" repowise workspaces, from the code; Backstage, from what teams declare.
• "What else usually changes when this changes?" CodeScene or repowise.
• "Apply this upgrade to every repo." Moderne, or Sourcegraph Batch Changes for scripted changes.
• No budget: GitHub code search for search, plus self-hosted repowise for the service graph and co-change.
• "Give my coding agent context across repos." repowise for structure, contracts and history over MCP; Augment for hosted semantic retrieval; Sourcegraph's MCP server if you already run Sourcegraph.

If the repos already sit in one monorepo, the question becomes a monorepo graph problem; our dependency graph tools for monorepos post covers that. For agent context inside one repo, see the best code graph MCP servers.

Reproduce the Sock Shop run

The run above uses only public repositories, so you can repeat it and compare the 13 links:

pip install repowise
mkdir sockshop && cd sockshop
for r in front-end carts catalogue orders payment shipping user; do
  git clone https://github.com/microservices-demo/$r
done
repowise init . --yes --no-prose --no-editor-setup --no-hook
repowise workspace diagnostics
repowise serve              # workspace dashboard, system map, contracts, co-changes

For your own services, put the repositories under one parent folder and run the same init; --no-prose keeps it model-free. The cross-repo docs list every supported framework and how links are matched.