# Signal Sprint

> Paid x402 MCP utilities for Base-USDC balances, blocks, gas, HTTPS headers, and agent profile bios.

- name: space.manus.signalsprint-mqysbksh/signal-sprint
- version: 1.0.0
- connection class: unknown (unknown)
- trust: 48/100 flags: no-repository, unreachable
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/space.manus.signalsprint-mqysbksh%2Fsignal-sprint
- tools: https://api.protogrid.dev/v1/servers/space.manus.signalsprint-mqysbksh%2Fsignal-sprint/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "signal-sprint": {
      "type": "http",
      "url": "https://signalsprint-mqysbksh.manus.space/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 5
- freshness: 85
- provenance: 45
- drivers: +dns-namespace -unreachable(3 failures) ~updated-62d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: signal_sprint_base_usdc_balance (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); signal_sprint_base_block (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); signal_sprint_base_gas_price (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 461 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 461 tokens to load them all
- tool set hash: 79d3546083dfe7827ea4bdc378767a0e
- badge: [![protogrid quality](https://protogrid.dev/badge/space.manus.signalsprint-mqysbksh/signal-sprint.svg)](https://protogrid.dev/servers/space.manus.signalsprint-mqysbksh/signal-sprint)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://signalsprint-mqysbksh.manus.space/mcp (streamable-http, auth none, reachable false, uptime30d 0.86567163)

## Packages

_none_

## Tools (4)

- `signal_sprint_base_block`: Return compact public metadata for one Base block hash. The paid REST endpoint GET /service/base-block costs $0.005 USDC through x402 and does not return transaction bodies.
- `signal_sprint_base_gas_price`: Return the current Base gas-price observation in wei and decimal gwei. The paid REST endpoint GET /service/base-gas-price costs $0.005 USDC through x402 and includes the observed block number.
- `signal_sprint_base_usdc_balance`: Return the current USDC balance for an EVM address on Base. The paid REST endpoint GET /service/base-usdc-balance costs $0.005 USDC through x402 and returns the observed block number.
- `signal_sprint_profile_bio`: Generate a concise professional profile bio for an AI agent. Invoke the paid REST endpoint POST /service/profile-bio; the call costs $1.00 USDC on Base through x402 and returns HTTP 402 before settlement.