Delta Witness MCP server

by 15998194110·io.github.15998194110/delta-witness·v0.7.1

Paid Capture and Guard tools for public-source observations before autonomous actions.

A92/100grade A

What users say

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Safety scan

A92/100

Adoption

Growing

0 stars103 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

delta_capture
Capture costs 1 USDC. Requires the buyer's explicit DELTA_MAX_USD_PER_CALL approval of at least 1.00; pays exactly 1 USDC via x402. Preserves a public webpage and returns proof metadata and hashes; raw artifacts remain private.
delta_preflight
Public Preflight costs 5 USDC. Requires the buyer's explicit DELTA_MAX_USD_PER_CALL approval of at least 5.00; pays exactly 5 USDC via x402. Compares public-source hashes/text before a consequential action. Safe means expectations matched, not that the source is true. This is not the 10 USDC Guarded-Action Pilot.
delta_quote
Get the current owner-authorized price before any payment is signed.
delta_verify_proof
Read public proof metadata, hashes, and manifest integrity status without exposing private raw artifacts.

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

no findings

Code scan5 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 0 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Runs npx -y delta-witness-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add delta-witness -- npx -y delta-witness-mcp

Is Delta Witness MCP server safe?: Yes, by our scan: it is graded A (92/100). Read the Delta Witness safety report
How do I install Delta Witness?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Delta Witness need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Delta Witness maintained?: The last commit was in the last day (2026-09-19). The latest release is v0.7.1.