DDNSTO is a remote access service that enables external network access to devices without needing a public IP address. It supports multiple device types, including Merlin router firmware, OpenWrt, Synology, QNAP, and Docker. Key capabilities include remote login via SSH, remote desktop access through RDP/VNC, and remote downloads with aria2, all accessible through a web browser. The service leverages HTTP/2.0 and multiple servers in China for faster response times. Typical use cases involve remote management and access to home or office devices from anywhere.

Provider

Why compare

Models

Free

Avg price

Speed

30d uptime

DDNSTO

rpi-sl-api-kooldns-cn

DDNSTO provides remote access services for devices without requiring a public IP address, supporting various applications and platforms.

Current provider baseline

N/A

0.6%

CaMeL AI

api-kr777-top

CaMeL AI provides an OpenAI-compatible API gateway with extensive model coverage and pricing options.

Higher 30-day availability
More free-model options
Broader model coverage

194

$87.35/M

93 tok/s

99.1%

api-n1n-ai

N1N provides API access to a wide range of AI models including GPT-4, Claude 3, Gemini, and others for text, image, and video generation.

Higher 30-day availability
More free-model options
Broader model coverage

177

$8.65/M

90 tok/s

99.7%

llm-api

Provides API access to large language models for developers.

Higher 30-day availability
More free-model options
Broader model coverage

N/A

72.9%

180txt-cn

180txt API provides an OpenAI-compatible API relay for multiple AI models.

Higher 30-day availability
More free-model options
Broader model coverage

$16.37/M

42 tok/s

0.6%

api-hankworkspace-cn

Hank Workspace API provides an OpenAI-compatible relay hosted at api.hankworkspace.cn.

Higher 30-day availability
More free-model options
Broader model coverage

N/A

34 tok/s

0.6%

www-liuwang520-xyz

Liuwang API provides an OpenAI-compatible relay hosted at www.liuwang520.xyz.

Higher 30-day availability
More free-model options
Broader model coverage

N/A

44 tok/s

70%

Notes

Health checks: Scope: the 72-hour chart and recent availability measure API connectivity only. Each bar summarizes one hour of checks. Targets: LMSpeed tries the configured health check URL and provider status URL first, then API endpoints derived from known API hosts and recent speed-test base URLs. A website host is considered only when it looks like an API endpoint. Probe steps: each candidate goes through DNS lookup, TCP connection, TLS handshake for HTTPS, and an HTTP HEAD request with redirects followed. Probing stops after the first reachable candidate. Reachable criteria: every required network step must succeed. An HTTP response below 500 is treated as reachable, including 401 because it confirms that an authenticated API endpoint responded, except for statuses classified as blocked. Blocked results: HTTP 403, 429, 521, 525, and 530, plus detected WAF or Cloudflare challenges, are shown as blocked and excluded from availability calculations because LMSpeed cannot determine whether the API itself is down. Model availability: when a dedicated test key is configured, LMSpeed sends an authenticated GET request to a derived /models endpoint and compares returned model IDs with this provider's listed models. These per-model results appear in Models & Pricing and are not included in the provider connectivity percentage. Timeouts: TCP connection, TLS handshake, HTTP connectivity, and model requests each use a 20-second timeout. A full run can take longer when several candidates are tried. Frequency: a background worker checks all providers every 5 minutes by default. The 72-hour chart combines those samples into hourly bars, and the schedule may be changed by the service operator. Limit: automated samples are not an SLA and do not guarantee account quota, every model, every region, or successful completion requests. Check the provider's own status page before making operational decisions.

Domain Rating data is sourced from Ahrefs. It is a 0–100 backlink-based domain strength signal and does not measure API speed or reliability.

Announcements and FAQ are read from this provider's NewAPI status snapshot when available. LMSpeed stores the original content and optional English translations from the provider status source, then shows the localized fields on this page.

DDNSTO

DDNSTO

API Endpoints

Health Check

Recent Test Records

Similar API Provider Alternatives to Compare

Notes

Similar API Provider Alternatives to Compare

Provider	Why compare	Models	Free	Avg price	Speed	30d uptime
DDNSTO rpi-sl-api-kooldns-cn DDNSTO provides remote access services for devices without requiring a public IP address, supporting various applications and platforms.	Current provider baseline	1	0	N/A	N/A	0.6%
CaMeL AI api-kr777-top CaMeL AI provides an OpenAI-compatible API gateway with extensive model coverage and pricing options.	Higher 30-day availability More free-model options Broader model coverage	194	4	$87.35/M	93 tok/s	99.1%
api-n1n-ai N1N provides API access to a wide range of AI models including GPT-4, Claude 3, Gemini, and others for text, image, and video generation.	Higher 30-day availability More free-model options Broader model coverage	177	6	$8.65/M	90 tok/s	99.7%
llm-api Provides API access to large language models for developers.	Higher 30-day availability More free-model options Broader model coverage	82	71	N/A	N/A	72.9%
180txt-cn 180txt API provides an OpenAI-compatible API relay for multiple AI models.	Higher 30-day availability More free-model options Broader model coverage	37	91	$16.37/M	42 tok/s	0.6%
api-hankworkspace-cn Hank Workspace API provides an OpenAI-compatible relay hosted at api.hankworkspace.cn.	Higher 30-day availability More free-model options Broader model coverage	15	44	N/A	34 tok/s	0.6%
www-liuwang520-xyz Liuwang API provides an OpenAI-compatible relay hosted at www.liuwang520.xyz.	Higher 30-day availability More free-model options Broader model coverage	15	10	N/A	44 tok/s	70%

DDNSTO

DDNSTO

API Endpoints

About DDNSTO

Health Check

Recent Test Records

Similar API Provider Alternatives to Compare

Notes

Similar API Provider Alternatives to Compare