# io.usefulapi/simpletexting (remote · simpletexting.usefulapi.io)

Send SMS/MMS, manage contacts, and read campaigns, messages and media on SimpleTexting.

- Trust score: 72/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `simpletexting.usefulapi.io`: 72/100 (this document), [markdown](https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting.md), [page](https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting)

## Channel facts

- Endpoint: `https://simpletexting.usefulapi.io/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 78/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token.
  - HTTPS not yet verified: we couldn't determine whether a plaintext access path exists.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
  - The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1083 tokens (~98/item across 11 items; 11 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http io-usefulapi-simpletexting https://simpletexting.usefulapi.io/mcp
```

### Codex

```toml
[mcp_servers.io-usefulapi-simpletexting]
url = "https://simpletexting.usefulapi.io/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-usefulapi-simpletexting": {
      "type": "remote",
      "url": "https://simpletexting.usefulapi.io/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add io-usefulapi-simpletexting --url https://simpletexting.usefulapi.io/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  io-usefulapi-simpletexting:
    url: "https://simpletexting.usefulapi.io/mcp"
```

### Other

```json
{
  "mcpServers": {
    "io-usefulapi-simpletexting": {
      "type": "http",
      "url": "https://simpletexting.usefulapi.io/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 71, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 68, −2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 69, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-07-27 (score 68, +56)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 12)

First indexed and scored.

## MCP tools (11)

### `simpletexting_list_contacts` (~101 tokens)

List contacts

List the account's contacts as a paged collection, optionally filtered by a `since` cursor and sort `direction`. SimpleTexting REST: GET /contacts.

Input parameters:

- `direction` (string): Sort direction (e.g. ASC | DESC).
- `page` (integer): Zero-based page number.
- `since` (string): Return contacts created/updated since this cursor or timestamp.
- `size` (integer): Page size (1-100).

### `simpletexting_get_contact` (~59 tokens)

Get contact

Get a single contact by its id or phone number, including profile fields, list memberships, and custom fields. SimpleTexting REST: GET /contacts/{contactIdOrNumber}.

Input parameters:

- `contact` (string, required): Contact id or phone number.

### `simpletexting_list_campaigns` (~180 tokens)

List campaigns

List the account's campaigns as a paged collection, optionally filtered by sending number, state, list, and start-date range. Note: only immediate campaigns are returned — scheduled/recurring campaigns are NOT included. SimpleTexting REST: GET /campaigns.

Input parameters:

- `accountPhone` (string): Filter by the sending account phone number.
- `listNameOrId` (string): Filter by recipient list name or id.
- `page` (integer): Zero-based page number.
- `size` (integer): Page size (1-100).
- `startDateFrom` (string): Filter to campaigns starting on/after this date.
- `startDateTo` (string): Filter to campaigns starting on/before this date.
- `state` (string): Filter by campaign state (e.g. SENT | SCHEDULED | DRAFT).

### `simpletexting_get_campaign` (~50 tokens)

Get campaign

Get a single campaign by its id, including its message, recipients, and status. SimpleTexting REST: GET /campaigns/{id}.

Input parameters:

- `campaign_id` (string, required): Campaign id.

### `simpletexting_list_messages` (~62 tokens)

List messages

List the account's messages as a paged collection (inbound + outbound message history). SimpleTexting REST: GET /messages.

Input parameters:

- `page` (integer): Zero-based page number.
- `size` (integer): Page size (1-100).

### `simpletexting_get_message` (~51 tokens)

Get message

Get a single message by its id, including its text, direction, status, and timestamps. SimpleTexting REST: GET /messages/{id}.

Input parameters:

- `message_id` (string, required): Message id.

### `simpletexting_list_media` (~61 tokens)

List media

List the account's media items (MMS assets) as a paged collection. SimpleTexting REST: GET /media.

Input parameters:

- `page` (integer): Zero-based page number.
- `size` (integer): Page size (1-100).

### `simpletexting_get_media` (~53 tokens)

Get media

Get a single media item (MMS asset) by its id, including its URL and metadata. SimpleTexting REST: GET /media/{id}.

Input parameters:

- `media_id` (string, required): Media item id.

### `simpletexting_evaluate_message` (~100 tokens)

Evaluate message

DRY-RUN a message body to compute its segment count, whether it sends as SMS or MMS, and its estimated cost — WITHOUT sending anything. Safe and read-only. SimpleTexting REST: POST /messages/evaluate with JSON body {text, mode?}.

Input parameters:

- `mode` (string): Optional send mode to evaluate against (e.g. AUTO | SMS | MMS).
- `text` (string, required): The message body to evaluate.

### `simpletexting_send_message` (~185 tokens)

Send message

SENDS A REAL SMS or MMS to a recipient — this MODIFIES live data and consumes message credits. Provide only the optional fields you need. SimpleTexting REST: POST /messages with JSON body {contactPhone, text, accountPhone?, mode?, subject?, fallbackText?, mediaItems?}.

Input parameters:

- `accountPhone` (string): Sending account phone number — omit to use the account default.
- `contactPhone` (string, required): Recipient phone number (E.164 or national format).
- `fallbackText` (string): Fallback text if MMS cannot be delivered.
- `mediaItems` (array): Media URLs or media ids to attach (makes it an MMS).
- `mode` (string): Send mode: AUTO | SMS | MMS | MMS_PREFERRED.
- `subject` (string): MMS subject line.
- `text` (string, required): Message body to send.

### `simpletexting_update_contact` (~181 tokens)

Update contact

UPDATES a live contact — its profile fields, list memberships, and custom fields. This MODIFIES live data. Provide only the fields you want to change. SimpleTexting REST: PUT /contacts/{contactIdOrNumber}.

Input parameters:

- `birthday` (string): Contact birthday (YYYY-MM-DD).
- `comment` (string): Free-text note on the contact.
- `contact` (string, required): Contact id or phone number to update.
- `contactPhone` (string): New phone number for the contact.
- `customFields` (object): Custom field values, as a map of field name → value.
- `email` (string): Contact email address.
- `firstName` (string): Contact first name.
- `lastName` (string): Contact last name.
- `listIds` (array): List ids or names to assign the contact to.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting#diagnostics

## Score history

- 2026-08-03: 72
- 2026-08-02: 72
- 2026-08-01: 71
- 2026-07-31: 71
- 2026-07-30: 68
- 2026-07-29: 70
- 2026-07-28: 69
- 2026-07-27: 68
- 2026-07-26: 12

## Links

- Remote endpoint: https://simpletexting.usefulapi.io/mcp
- Repository: https://github.com/m190/usefulapi-mcp
- Changelog RSS feed: https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting/changelog.json
- HTML version of this page: https://verifymcp.io/servers/io-usefulapi-simpletexting/simpletexting