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TextForAgents MCP server

Which MCP servers are TextForAgents's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-28

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Whose server it is
  • Registry namecom.textforagents/a2a-agent-card-cross-sdk-signature-conformanceverified in the MCP registry

The registry name sits under textforagents.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-28
  • Stateanswerschecked 2026-10-28
  • Tools3
  • Server calls itselfa2a-agent-card-cross-sdk-signature-conformance
  • Server version1.0.1
  • Protocol version2025-03-26

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 259 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: send a restaurant list by text to a family member; send a photo as a picture message to a group; receive and answer incoming texts from people.
  • Checked on 6 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 2 of 3 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 6, the first on 2026-10-28
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 6 so far
  • What an agent can do with it0 of 3 use cases
  • Answeredmeasuring6 of the 7 daily checks it takes to print a share
  • Median first answer246 ms
  • Space in an agent's context≈ 140 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsC · 67 of 100
  • Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once
  • No description an agent can choose by: 1 of 3
  • Parameters without a description: in 2 of 3
  • Not saying whether it only reads or can destroy: 3 of 3

What an agent can do with it

  • cannot · send a restaurant list by text to a family member
  • cannot · send a photo as a picture message to a group
  • cannot · receive and answer incoming texts from people

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-10-28
  • check_card

    Run one cross-SDK signature conformance verdict check (trial or $0.05 x402 accounting applies).

  • get_check

    Fetch one of your checks by id.

  • list_watches

    List your watches.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "a2a-agent-card-cross-sdk-signature-conformance": {
      "type": "http",
      "url": "https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http textforagents https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp as a custom connector in the settings.

Other servers listed as TextForAgents's
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OpenAPI spec

88 paths, read 2026-10-28. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.