Sigil
Sigil is an MCP server that helps AI assistants programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify.
Key facts
- Category
- Developer Tools
- GitHub stars
- 0
- Forks
- 0
- License
- Apache-2.0
- Last commit
- Jun 10, 2026
- Best for
- connecting AI assistants to external tools
- Supported clients
- —
- Last updated
- Jun 12, 2026
GitHub metrics
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Watchers
- 0
- Last commit
- Jun 10, 2026
Scores
GEO score
40/100
Weighted blend: popularity 35%, freshness 25%, growth 25%, maintenance 15%.
Needs ~7 days of metric history
Scores last calculated Jun 12, 2026.
What is Sigil?
Sigil is an MCP server that helps AI assistants programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify. It belongs to the Developer Tools category. It is distributed under the Apache-2.0 license.
How to install Sigil
See the official documentation for installation instructions.
Sigil use cases
A general-purpose MCP server.
Safety notes
- Requires API token
- Yes
- Writes to external systems
- Yes
- Accesses local filesystem
- Unknown
- Connects to a database
- Unknown
- Security docs
- No
Inferred by rule from each server's metadata, README, and category. "Unknown" means the signal could not be determined — always verify against the official docs before granting access.
Data sources
| Field | Value | Source | Confidence |
|---|---|---|---|
| Forks | 0 | GitHub REST API | high |
| Last commit | Jun 10, 2026 | GitHub REST API | high |
| License | Apache-2.0 | GitHub REST API | high |
| Stars | 0 | GitHub REST API | high |
| Topics | ad-verification, advertising, ai-agents, mcp, model-context-protocol | GitHub REST API | high |
| Watchers | 0 | GitHub REST API | high |
| Has Authentication Docs | Yes | Repository README | medium |
| Has Security Docs | No | Repository README | medium |
| Risk level | High | Automated risk inference | medium |
| Requires Api Token | Yes | Automated risk inference | low |
| Uses Network Access | Yes | Automated risk inference | low |
| Writes External System | Yes | Automated risk inference | low |
Confidence reflects the source: high = GitHub REST API, medium = README-derived or synthesized, low = inferred from keywords. Fields that cannot be determined are shown as "Unknown" — never fabricated.
Recent changes
- License set to Apache-2.0
- Last commit set to Jun 10, 2026
Sigil alternatives
- Context7★ 57.2K · MIT · Jun 11, 2026
Another Developer Tools MCP server with similar use cases.
- GitHub MCP Server★ 30.6K · MIT · Jun 12, 2026
Another Developer Tools MCP server with similar use cases.
- MCP Registry Server★ 6.9K · license n/a · Jun 10, 2026
Another Developer Tools MCP server with similar use cases.
- strata★ 5.7K · Apache-2.0 · Jun 1, 2026
Another Developer Tools MCP server with similar use cases.
- Figma MCP Server★ 1.6K · license n/a · Jun 10, 2026
Another Developer Tools MCP server with similar use cases.
- ref-tools-ref-tools-mcp★ 1.1K · MIT · May 6, 2026
Another Developer Tools MCP server with similar use cases.
Sigil vs related MCP servers
| Server | Stars | Forks | License | Last commit |
|---|---|---|---|---|
| Sigil | 0 | 0 | Apache-2.0 | Jun 10, 2026 |
| Context7 | 57.2K | 2.7K | MIT | Jun 11, 2026 |
| GitHub MCP Server | 30.6K | 4.4K | MIT | Jun 12, 2026 |
| MCP Registry Server | 6.9K | 858 | — | Jun 10, 2026 |
Frequently asked questions
What is Sigil?
Sigil is an MCP server that helps AI assistants programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify. It is categorized under Developer Tools.
What are good alternatives to Sigil?
Popular alternatives include Context7, GitHub MCP Server, MCP Registry Server, and strata.
Last updated