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PayperAnswer

R0· no sign-in

Pay-per-call chat on GPT-6.1, Claude, Gemini and Grok over x402. No API key; a failed call is free.

v0.4.1 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality90strong
Trust82of 100
Uptime, 30 days96%
Latency p50417 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "ai": {
      "type": "http",
      "url": "https://payperwork.app/ai/mcp"
    }
  }
}
claude mcp add --transport http ai https://payperwork.app/ai/mcp
[mcp_servers.ai]
url = "https://payperwork.app/ai/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai": {
      "type": "remote",
      "url": "https://payperwork.app/ai/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "ai": {
      "type": "http",
      "url": "https://payperwork.app/ai/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=ai&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcGF5cGVyd29yay5hcHAvYWkvbWNwIn0%3D"
}
{
  "servers": {
    "ai": {
      "type": "http",
      "url": "https://payperwork.app/ai/mcp"
    }
  }
}
{
  "mcpServers": {
    "ai": {
      "httpUrl": "https://payperwork.app/ai/mcp"
    }
  }
}
extensions:
  "ai":
    enabled: true
    name: "ai"
    type: streamable_http
    uri: "https://payperwork.app/ai/mcp"
    timeout: 300

Quality 90 / 100strong

protocol88 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • warn
    protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene88 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations2 of 2 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: models (destructiveHint, idempotentHint, openWorldHint); chat (destructiveHint, idempotentHint, openWorldHint)
  • pass
    tools.token_costabout 451 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
  • pass
    tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations
stability100 · weight 15
  • pass
    stability.changes1 tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
  • pass
    stability.new_linksno tool change named a new site
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 451 tokens to load them all · tool set 50cd25038168 · tools last changed 2026-11-01 · checked 2026-11-14 07:03 UTC

Tool changes

  • chatchangeddescription
    before

    Chat completion on a frontier model: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna (default anthropic/claude-haiku-5.5; see the models tool). Same shape as OpenAI chat: messages, optional max_tokens (default 1024, max 8192), temperature, tools. Price is quoted per call from your input size and max_tokens: (estimated input tokens x input rate + max_tokens x output rate) x 1.4 + $0.0005, minimum $0.002; the 402 states the exact amount. Charged only if the model call succeeds. Thinking models (GPT-5.5, Gemini, Grok, gpt-oss) spend part of max_tokens on reasoning: give them room, or set reasoning_effort (default low). Prompts go to the model's provider and are not stored by Payperwork. No streaming.

    after · 100% of words in common

    Chat completion on a frontier model: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna (default anthropic/claude-haiku-5.5; see the models tool). Same shape as OpenAI chat: messages, optional max_tokens (default 1024, max 8192), temperature, tools. Price is quoted per call from your input size and max_tokens: (estimated input tokens x input rate + max_tokens x output rate) x 1.4 + $0.0005, minimum $0.002; the 402 states the exact amount. Charged only if the model call succeeds. Thinking models (GPT-5.5, Gemini, Grok, gpt-oss) spend part of max_tokens on reasoning: give them room, or set reasoning_effort (default low). Prompts go to the model's provider and are not stored by PayperWork. No streaming.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness98
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-96% +updated-12d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://payperwork.app/ai/mcp streamable-httpnoneyes96%417 ms2026-07-282026-11-14

Tools (2)

chatread-onlyChat completion on a frontier model: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna (default anthropic/claude-haiku-5.5; see the models tool). Same shape as OpenAI chat: messages, optional max_tokens (default 1024, max 8192), temperature, tools. Price is quoted per call from your input size and max_tokens: (estimated input tokens x input rate + max_tokens x output rate) x 1.4 + $0.0005, minimum $0.002; the 402 states the exact amount. Charged only if the model call succeeds. Thinking models (GPT-5.5, Gemini, Grok, gpt-oss) spend part of max_tokens on reasoning: give them room, or set reasoning_effort (default low). Prompts go to the model's provider and are not stored by PayperWork. No streaming.
modelsread-onlyList the available models with provider rates, the pricing formula and limits. Free.

Schemas: list_tools.

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More from app.payperwork

Official server.json
{
  "name": "app.payperwork/ai",
  "title": "PayperAnswer",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://payperwork.app/ai/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.4.1",
  "websiteUrl": "https://payperwork.app",
  "description": "Pay-per-call chat on GPT-6.1, Claude, Gemini and Grok over x402. No API key; a failed call is free."
}