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costwright — agent budget analysis MCP server

by hernaninverso·io.github.hernaninverso/costwright-mcp·v0.1.1
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Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.

B78/100grade B
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Safety scan
B78/100

full report

Adoption
New

0 stars61 downloads/wk

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costwright — agent budget analysis tools (4)

write = sends, deletes, buys or posts

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

  • costwright_certify

    Issue a tamper-evident, Ed25519-signed budget certificate for an agent repo (re-run server-side, logged

  • costwright_check

    Statically analyze an LLM-agent repo (LangGraph / CrewAI / OpenAI-Agents-SDK) for runaway-budget risk

  • costwright_pubkey

    Fetch costwright's active Ed25519 public keys (PEM) for offline signature verification of any certificate (public, no key).

  • costwright_verify

    Verify a previously issued costwright certificate by id (public, no key). Returns its state (valid|expired|revoked|signature_invalid), whether the signature checks out, and the certified result.

Public scan report

scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it

no findings
  • Code scan2 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 qualitystatic API keys via environment variables6/15
  • Maintenancelast push 88 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 78/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How costwright — agent budget analysis compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
78/100
higher than 57% of 4,460 AI and agents servers
Tools
4
the typical AI and agents server has 6
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
61
more than 50% of 1,538 AI and agents servers with a package

What its tools let an agent do: 4 read

Install costwright — agent budget analysis in Claude Code, Cursor or VS Code

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

claude mcp add costwright-mcp -- npx -y costwright-mcp
Add to Cursor

What the publisher says

From the costwright — agent budget analysis repository's README, as published. We do not edit it. Read it on GitHub

costwright — MCP server

Static worst-case token-budget analysis for LLM-agent workflows. Point it at a Python repo using LangGraph / CrewAI / OpenAI-Agents-SDK and it reports — by pure AST analysis, without running the code — the worst-case budget ceiling of every workflow graph: which units are certifiable / default-dependent / non-certifiable / runaway, and which LLM calls have no token cap. Optionally issues an Ed25519-signed budget certificate logged to a public transparency log. Wraps the hosted costwright API; backed by a Lean 4 cost-soundness theorem.

Use it before deploying an agent workflow to catch missing token caps and while True: runaway

drivers — the budget version of a type check.

Tools

Setup

{
  "mcpServers": {
    "costwright": {
      "command": "npx",
      "args": ["-y", "costwright-mcp"],
      "env": { "COSTWRIGHT_API_KEY": "your_rapidapi_key" }
    }
  }
}

The key is sent as X-RapidAPI-Key (RapidAPI channel) by default; set COSTWRIGHT_DIRECT=1 to send it as Authorization: Bearer for the direct channel. verify and pubkey work with no key.

check/certify build a .py-only gzip archive of repopath client-side (excluding venv, nodemodules, tests, etc.) and send it for analysis — your source is uploaded to the hosted API. See . MIT licensed.

Nothing above is checked by us. What we check is on the safety report.

costwright — agent budget analysis: common questions

Is costwright — agent budget analysis MCP server safe?
Mostly: it is graded B (78/100). Read the costwright — agent budget analysis safety report
How do I install costwright — agent budget analysis?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does costwright — agent budget analysis need an API key?
Yes. The registry entry asks for COSTWRIGHT_API_KEY.
Is costwright — agent budget analysis maintained?
The last commit was 127 days ago (2026-06-30). The latest release is v0.1.1.
What can I use instead of costwright — agent budget analysis?
Servers from other publishers that do the same job: Commonly MCP server, MCP Server for WinDbg Crash Analysis and mcptoon MCP server.
How does costwright — agent budget analysis compare with other AI and agents MCP servers?
safety score 78/100 (higher than 57% of 4,460 AI and agents servers); tools 4 (the typical AI and agents server has 6); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to costwright — agent budget analysis

Same job from other publishers: the closest match first, then the best rated.

  • Commonly
    Read Commonly pods and post as a Commonly agent you create, with a token from your Commonly account.
    A
  • MCP Server for WinDbg Crash Analysis
    A Model Context Protocol server for Windows crash dump analysis using WinDbg/CDB
    A
  • mcptoon
    MCP tools + agent skills in one zero-dependency CLI: 71,929 -> 581 tokens (-99.2%, measured).
    A
  • Actual Budget MCP Server
    MCP server exposing Actual Budget accounts, transactions, budgets and reporting to LLM assistants.
    B
  • Stata
    Let LLM help you achieve your regression analysis with Stata
    C

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