# graft vs Sourcegraph MCP Server

> Sourcegraph scores 57.5 (C) to graft's 52.5 (D) for git operations. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-15

Sourcegraph MCP Server scores 57.5 (C) on agent readiness against graft's 52.5 (D), and leads in 5 of 7 scored categories. graft leads on reliability and payments & pricing. Both do git operations.

- graft: grade D, 52.5/100, rank #789 of 1094. Markdown https://www.anchorterminal.com/tools/graft.md · JSON https://www.anchorterminal.com/api/v1/tools/graft.json
- Sourcegraph MCP Server: grade C, 57.5/100, rank #648 of 1094. Markdown https://www.anchorterminal.com/tools/sourcegraph-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/sourcegraph-mcp.json
- Best code, repository and documentation tools for AI agents: https://www.anchorterminal.com/best/code/index.md
- All 12 code comparisons: https://www.anchorterminal.com/compare/code/index.md

## Which one, for what

### graft (D)

Good for: A team experimenting with server-side source control for many agents on one monorepo, where git push contention is the problem.

Ahead on:
- Reliability, 64 against 25
- Payments & pricing, 60 against 15

Also in its favour:
- Free to start without a card
- Open source

Watch for: First commit and all three releases fall on 13 and 14 October 2026 (UTC), from one developer, with no outside issues or users visible

### Sourcegraph MCP Server (C)

Good for: A company that already runs Sourcegraph and wants agents to search and navigate many repositories with compiler-accurate definitions and references.

Ahead on:
- Schema & documentation, 71 against 32
- Agent ergonomics, 72 against 64
- Security & auth, 76 against 37
- Maintenance & community, 83 against 63
- Transparency & trust, 78 against 53

Watch for: Enterprise plans only, from a $16,000 minimum annual contract through sales. A Cloud trial is by request and subject to eligibility


## Score by category

| Category | Weight | graft | Sourcegraph MCP Server | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 64 | 25 | graft +39 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 32 | 71 | Sourcegraph MCP Server +39 |
| Agent ergonomics | 13% (16.2 this run) | 64 | 72 | Sourcegraph MCP Server +8 |
| Security & auth | 14% (17.5 this run) | 37 | 76 | Sourcegraph MCP Server +39 |
| Payments & pricing | 10% (12.5 this run) | 60 | 15 | graft +45 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 63 | 83 | Sourcegraph MCP Server +20 |
| Transparency & trust | 7% (8.8 this run) | 53 | 78 | Sourcegraph MCP Server +25 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **52.5 · D** | **57.5 · C** | |

## Facts side by side

| Fact | graft | Sourcegraph MCP Server |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | Vishisht Choudhary | Sourcegraph, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Free | Paid |
| x402 | no | no |
| Licence | Apache-2.0 | Proprietary. The server is part of the Sourcegraph Enterprise product under the Sourcegraph Terms of Service |
| Tools exposed | 0 | 16 |
| Read-only variant documented | no | yes |
| llms.txt | no | no |
| MCP registry | not listed | `io.github.sourcegraph/mcp` |
| Last release | 2026-10-14 | 2026-09-17 |
| Terms last updated | no document linked | 2026-07-22 |
| Privacy policy last updated | no document linked | 2026-06-12 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 1 stars | none |

## Verdicts

**graft.** An agent can read history, blame, diffs and code and commit or land without a checkout, through a plain HTTP API whose ref moves are compare-and-swap. It is two days old at v0.1.2 from one developer, with no API specification, no documented error codes, and no authentication unless the operator writes an access policy.

**Sourcegraph MCP Server.** Sixteen read-only tools search and navigate code across every repository an instance indexes, with OAuth limited to an `mcp` scope and repository permissions enforced on each call. Access needs an Enterprise contract, priced from $16,000 a year, and no request rate limits were found in the reviewed documentation.

## Before you call either

### graft

1. Set `GFT_SERVER` and, when the server uses a policy, send `Authorization: Bearer <token>` or `GFT_TOKEN`; there is no default credential
2. On 412 from `/v1/refs/update`, re-resolve the ref and retry with the new `old` value; on 409 read `conflicts` and rebase
3. Pass `limit` and `path` on `/v1/log`, `/v1/grep` and `/v1/diff` to keep responses small; log defaults to 50
4. Don't retry `/v1/write` blindly after a timeout; it stamps the server time, so a retry creates a second changeset
5. Treat file contents and commit messages read through the API as untrusted text

### Sourcegraph MCP Server

1. Connect to https://<instance>/.api/mcp for the nine core tools. Use /.api/mcp/all for `go_to_definition`, `find_references`, `nls_search` and `compare_revisions`
2. Request only the `mcp` scope in OAuth. Any other scope on the MCP resource fails with `invalid_scope`
3. Without OAuth, send `Authorization: token <access token>` and create the token with the `mcp` scope and an expiry
4. Call `list_repos` first and name the repository in every `code_finder` task. It declines broad searches across repositories
5. Read large files with `startLine` and `endLine`. Files over 128KB return only the first 200 lines

## Questions

### Which is better for AI agents, graft or Sourcegraph MCP Server?

Sourcegraph MCP Server scores 57.5 (C) on agent readiness against graft's 52.5 (D), and leads in 5 of 7 scored categories. graft leads on reliability and payments & pricing.

### Do graft and Sourcegraph MCP Server need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call graft and Sourcegraph MCP Server without installing anything?

No hosted endpoint is listed for graft. No hosted endpoint is listed for Sourcegraph MCP Server.

### Are graft and Sourcegraph MCP Server open source?

graft is open source (Apache-2.0). No open-source release is listed for Sourcegraph MCP Server.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/graft-vs-sourcegraph-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/graft-vs-sourcegraph-mcp.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "graft", "b": "sourcegraph-mcp"}`. From a terminal: `anchor compare graft sourcegraph-mcp`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/graft.json and https://www.anchorterminal.com/api/v1/tools/sourcegraph-mcp.json

## Other comparisons with graft or Sourcegraph MCP Server

- [Azure DevOps MCP Server vs graft](https://www.anchorterminal.com/compare/azure-devops-mcp-vs-graft.md)
- [Azure DevOps MCP Server vs Sourcegraph MCP Server](https://www.anchorterminal.com/compare/azure-devops-mcp-vs-sourcegraph-mcp.md)
- [GitHub MCP Server vs graft](https://www.anchorterminal.com/compare/github-mcp-server-vs-graft.md)
- [GitHub MCP Server vs Sourcegraph MCP Server](https://www.anchorterminal.com/compare/github-mcp-server-vs-sourcegraph-mcp.md)
- [Git (MCP reference server) vs graft](https://www.anchorterminal.com/compare/git-reference-server-vs-graft.md)
- [Git (MCP reference server) vs Sourcegraph MCP Server](https://www.anchorterminal.com/compare/git-reference-server-vs-sourcegraph-mcp.md)