generated: '2026-09-19'
method: searched
source: https://github.com/zse4321/decision-anchor-sdk
docs: https://github.com/zse4321/decision-anchor-sdk#installation
package_count: 1
official_count: 1
summary: >-
  Decision Anchor ships ONE first-party client library, a zero-dependency Node.js SDK, and distributes it
  by git clone only — package.json carries "private": true and the package is absent from npm (and from
  PyPI, and from any other registry). It is unmistakably first-party: the apex homepage's JSON-LD lists it as
  the WebAPI's SoftwareSourceCode, llms.txt calls it "Node.js SDK with 17 API groups and 80+ methods", the
  agent card's documentationUrl and the MCP discovery document both point into it, and the MCP registry entry
  names it as the server's repository. The same repository holds the AGENTS.md guide and framework examples
  (LangGraph, CrewAI) that connect to the remote MCP server rather than wrap the REST API.
packages:
  - language: javascript
    runtime: Node.js >= 18 (native fetch; no dependencies)
    registry: github
    name: decision-anchor-sdk
    url: https://github.com/zse4321/decision-anchor-sdk
    install: 'git clone https://github.com/zse4321/decision-anchor-sdk.git && const DecisionAnchor = require("./src/index")'
    official: true
    license: MIT
    version: 1.5.0
    published: null
    version_source: package.json on main (private:true); read 2026-09-19
    last_commit: '2026-09-15'
    repository_created: '2026-04-02'
    api_groups: 17 (per llms.txt); 81 async methods in src/index.js
    note: >-
      Not published to any registry, so there is no registry release date: version 1.5.0 is the package.json
      value on the default branch and last_commit is the most recent push (docs commits on 2026-09-15). No
      git tags or GitHub releases exist. The README states the SDK never handles payments or private keys —
      on HTTP 402 it throws PaymentRequiredError carrying the decoded x402 v2 challenge and the caller retries
      with a PAYMENT-SIGNATURE header using its own wallet tooling.
    examples:
      - examples/basic-dd.js
      - examples/ara-observe.js
      - examples/tsl-market.js
      - examples/x402-da-anchoring.js
searched:
  - {registry: npm, query: 'https://registry.npmjs.org/decision-anchor-sdk', result: '{"error":"Not found"}'}
  - {registry: npm, query: 'https://registry.npmjs.org/decision-anchor', result: '{"error":"Not found"}'}
  - {registry: npm, query: 'https://registry.npmjs.org/@decision-anchor/sdk', result: '{"error":"Not found"}'}
  - {registry: npm, query: 'https://registry.npmjs.org/-/v1/search?text=decision-anchor&size=10', result: 0 matching packages (all hits unrelated)}
  - {registry: pypi, query: 'https://pypi.org/pypi/decision-anchor/json', status: 404}
  - {registry: pypi, query: 'https://pypi.org/pypi/decision-anchor-sdk/json', status: 404}
  - {registry: github, query: 'https://api.github.com/repos/zse4321/decision-anchor-sdk', result: 'JavaScript, MIT, 1 star, pushed 2026-09-15, topics include mcp-server, x402, usdc, ai-agent'}
  - {registry: github-user, query: 'https://api.github.com/users/zse4321/repos', result: 'a personal account; decision-anchor-sdk is the only original repository, the rest are forks of awesome-mcp-servers / x402 lists and CrewAI/LangChain examples'}
  - {registry: mcp-registry, query: 'https://registry.modelcontextprotocol.io/v0.1/servers?search=decision-anchor', result: 'com.decision-anchor/da listed (remote streamable-http), repository = this SDK repo; no stdio package'}
not_packages:
  - {path: 'examples/langgraph-da-integration.py', note: 'Python example script using langchain-mcp-adapters against the remote MCP server; not a library'}
  - {path: 'examples/crewai-da-integration.py', note: 'Python example script using crewai-tools MCPServerAdapter; not a library'}