app.getstringer由 getstringer.app 发布官方发布者v0.1.1更新于 Oct 24, 2026
Grounded synthesis from public sources. 3 free calls total; then $0.10 brief or $0.25 deep via x402.
发布方自己的服务：Stringer CleanExtract
远程 MCP 服务器，从经过验证的公开来源返回带引文和出处的摘录式引用，无法佐证的主题会被拒绝。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/app.getstringer%2Fsynthesizer/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"stringer-grounded-synthesizer": {
"type": "http",
"url": "https://synthesis.getstringer.app/mcp"
}
}
}This is a runnable reference implementation of the Stringer Grounded Synthesizer, a research
service that returns extractive quotations with citations from verified public sources and
refuses a topic it cannot ground. It mirrors the caller-observable surface of the hosted
service at synthesis.getstringer.app and holds nothing back that a caller can see.
The boundary rule is the one stated in the worker header: a behaviour belongs here when an unauthenticated caller can observe it from outside. The bearer-gated admin stats route, the Durable Object funnel counters, the caller hashing, and the provider cost rate card stay out.
Node.js 20 or newer. The Worker is dependency-free and runs with no API keys and no external state, because the default research provider is a fixture-backed stub. That is the point: a stranger can clone the tree and watch the grounding and the refusal end to end without holding a single paid key.
To run it as a Worker locally, use Wrangler 4 (npx wrangler dev). No secret setup is
required; the free allowance is held in process for the reference and is documented as such
in wrangler.toml.
https://synthesis.getstringer.app/mcpsynthesize_intelligencePOST https://synthesis.getstringer.app/v1/synthesizePOST https://synthesis.getstringer.app/v1/execute/.well-known/mcp.json, /server.json, /llms.txt, /llms-full.txt, /robots.txt, /sitemap.xmlThe first three calls are free, total, with no signup and no claim header. The allowance does
not reset. After that, a brief synthesis costs USD 0.10 and a deep synthesis costs USD 0.25,
both paid through x402 v2 USDC on Base (eip155:8453). An unpaid call after the allowance is
exhausted returns HTTP 402 with the accepted payment requirement in PAYMENT-REQUIRED and
the tier price in X-402-Price-USD.
GROUNDED: the quotation checks passed.REFUSED_UNVERIFIED_CLAIMS: fewer than the required verified sources, or a quote failed
verbatim verification.SOURCE_EXTRACTION_FAILED: a named source could not be fetched or extracted.The refusal is the product's whole claim. The test harness observes the grounded case and the refusal case red before making each green, so neither path can pass on a test that has never failed.
The research provider is an injectable seam. synthesizeGroundedReport takes a provider
argument, and the fetch handler reads env.researchProvider. The default is
createFixtureProvider(), which searches a fixed corpus of three source documents and never
makes a network call.
A real provider implements the same two methods:
Wire one in by exporting it on the Worker environment, for example with an Exa search key and a Firecrawl scrape key held as Worker secrets. The reference never hard-codes a provider's unit cost and never names the hosted service's margin internals; the seam is the only thing a reader needs to change.
Free responses carry X-Stringer-Access-Tier: free and X-Stringer-Free-Remaining. The
fourth call returns HTTP 402. See openapi.json and RECIPES.md for the full flow.
Streamable HTTP at https://synthesis.getstringer.app/mcp. Clients must send both
application/json and text/event-stream in Accept. The server implements initialize,
ping, tools/list, and tools/call for synthesize_intelligence.
MIT. See LICENSE.
来源：README.md，提交 e1970f9
Return extractive quotations with citations and source provenance from verified public sources. The first 3 calls are free, total, with no signup and no claim header. The allowance does not reset. Free calls include web discovery when no source URLs are given.
depthtopic必填source_urlsdomains_filter已满足适用检查项的 100%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
git clone <this repository>cd synthesizer-publicnode --test test_discovery.mjs test_worker.mjs{ async search(query, numResults, domainsFilter) { // Return [{ url, title }] from your search backend. }, async extract(url) { // Return { ok: true, document: { url, title, markdown, via } } on success, or // { ok: false, source_url: url, stage, reason } on failure. },}curl -i https://synthesis.getstringer.app/v1/synthesize \ -H 'Content-Type: application/json' \ --data '{"topic":"Base network USDC settlement","depth":"brief"}'node --test test_discovery.mjs test_worker.mjspython3 -m py_compile client_sdk.py