API directories and integration catalogs: 32 places to submit

API directories, plugin and module catalogs, and the ecosystem listings of platforms you build on. 32 API directories and integration catalogs accept submissions: 30 are free or have a free tier, 1 are quick wins (free, short and checked), and we have checked the submission path of 30, most recently on 2026-08-07.

Updated 2026-11-07How we check My list

Sites: 32
Free or free tier: 30
Path checked: 30
Recorded dofollow: 3
Median est. DA: 60

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Quick winsFree, quick, path checked1 sites
Nothing to payFree or a free tier30 sites
No link back askedNo badge or reciprocal link32 sites

Link type (as recorded)

Check the live link after you are listed.

Dofollow3 sites
Sometimes dofollow0 sites
Nofollow6 sites
Disputed dofollow0 sites
Not recorded23 sites

Authority (est. DA)

90 – 1004 sites
70 – 895 sites
50 – 6918 sites
30 – 493 sites
Under 300 sites
Not rated2 sites

Cost

Free25 sites
Free + paid tier5 sites
Paid0 sites
Not stated2 sites

Effort

Quick2 sites
Moderate19 sites
Involved11 sites

Path last checked

In the last 90 days0 sites
3 – 12 months ago28 sites
Over a year ago0 sites
No check date4 sites

Submission path

Path checked20 sites
Path checked, conditions apply10 sites
Not yet checked by us2 sites

Region

Global31 sites
India1 sites

Results: 1–32 of 32 sites

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CSV — download these 32 results

N
New Relic Instant Observability
newrelic.com
Create a useful quickstart for monitoring your real deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~90
83value Submit to New Relic Instant Observability (opens in a new tab)
S
StackStorm Exchange
exchange.stackstorm.org
Create a useful StackStorm integration or automation pack for your workflow, then submit it through the official Exchange Incubator pull-request process.
- Checked 2026-08
- Free
- Quick
- Estimated domain authority DA ~45
81value Submit to StackStorm Exchange (opens in a new tab)
J
JS.ORG
js.org
Create a genuine JavaScript SDK or demo on GitHub Pages and request an appropriate js.org subdomain that links to its official your tool documentation.
- Checked 2026-08
- Dofollow
- Free
- Moderate
- Estimated domain authority DA ~70
80value Submit to JS.ORG (opens in a new tab)
R
Replit
replit.com
Publish your focused open demo or developer utility and link its canonical your tool page from the app and project description.
- Checked 2026-08
- Nofollow
- Free + paid tier
- Moderate
- Estimated domain authority DA ~85
80value Submit to Replit (opens in a new tab)
S
StackBlitz
stackblitz.com
Publish a working browser demo or starter that teaches your integration, with accurate title, description and canonical documentation link.
- Checked 2026-08
- Nofollow
- Free + paid tier
- Moderate
- Estimated domain authority DA ~85
80value Submit to StackBlitz (opens in a new tab)
A
Apache Airflow Ecosystem
airflow.apache.org
Create your real Airflow provider with hooks/operators and documentation metadata, publish it, then add it to Airflow’s Ecosystem page by PR.
- Checked 2026-08
- Nofollow
- Free
- Involved
- Estimated domain authority DA ~90
78value Submit to Apache Airflow Ecosystem (opens in a new tab)
O
Omeka S Modules
omeka.org
Create a maintained Omeka S module for collection metadata privacy, accessibility or link auditing, package it correctly and register the add-on with project and author links.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~65
78value Submit to Omeka S Modules (opens in a new tab)
C
Charmhub
charmhub.io
Package your maintained self-hosted deployment as a Juju charm with canonical documentation, source, and support links.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~60
76value Submit to Charmhub (opens in a new tab)
C
Coolify One-Click Services
coolify.io
Create and fully test your Docker Compose service template, add metadata, logo, and documentation, then submit it to Coolify's next branch.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~60
76value Submit to Coolify One-Click Services (opens in a new tab)
D
Daggerverse
dagger.io
Create a TypeScript or Go module that runs your tool web audits in CI and returns machine-readable JSON/SARIF with useful pass/fail thresholds, then publish it to Daggerverse.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~60
76value Submit to Daggerverse (opens in a new tab)
I
IBM Cloud Catalog
ibm.com
Package your deployable self-hosted architecture for IBM Cloud, complete Partner Center onboarding, and request public catalog approval.
- Checked 2026-08
- Nofollow
- Not stated
- Moderate
- Estimated domain authority DA ~95
76value Submit to IBM Cloud Catalog (opens in a new tab)
R
Red Hat Ecosystem Catalog
redhat.com
Package your supported self-hosted edition or integration for RHEL or OpenShift and complete Red Hat Partner Validation for a catalog page.
- Checked 2026-08
- Not stated
- Moderate
- Estimated domain authority DA ~95
76value Submit to Red Hat Ecosystem Catalog (opens in a new tab)
Y
YunoHost Apps
apps.yunohost.org
Package your free-software self-hosted deployment, implement reliable install, upgrade, backup and restore operations, then submit it to the official app catalog.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~55
74value Submit to YunoHost Apps (opens in a new tab)
B
balenaHub
hub.balena.io
Build a deployable edge privacy utility or reusable block, add balena.yml metadata, public source, configuration and multi-device tests, then publish it on balenaHub.
- Checked 2026-08
- Free + paid tier
- Moderate
- Estimated domain authority DA ~65
73value Submit to balenaHub (opens in a new tab)
C
CrowdSec Hub
app.crowdsec.net
Create a defensive parser, scenario, or collection for your real -supported log source, document and test it, then submit it to CrowdSec Hub.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~50
73value Submit to CrowdSec Hub (opens in a new tab)
S
Sensu Bonsai
bonsai.sensu.io
Publish an open-source Sensu check/handler for your tool, create GitHub releases and bonsai.yml, then register it with description and tags.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~50
73value Submit to Sensu Bonsai (opens in a new tab)
B
Bitrise Step Library
bitrise.io
Build a Bitrise Step that runs your tool secret, privacy, or accessibility checks on explicitly chosen build artifacts.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~70
71value Submit to Bitrise Step Library (opens in a new tab)
L
LibHunt
libhunt.com
Eligible if your component is open-sourced.
- Not yet checked by us
- Nofollow
- Free
- Quick
- Estimated domain authority DA ~60
71value Submit to LibHunt (opens in a new tab)
J
JSON Schema Store
schemastore.org
After your tool has a stable, commonly used JSON or YAML configuration format, contribute its accurate schema and test fixtures so editors can provide validation, completion, and tooltips.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~55
70value Submit to JSON Schema Store (opens in a new tab)
P
ProcessWire Modules Directory
processwire.com
Build a ProcessWire admin module for external URL, metadata, accessibility or security audits, register as a module author and submit it to the official directory.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~65
69value Submit to ProcessWire Modules Directory (opens in a new tab)
R
REUSE API
reuse.software
Make your real public repository REUSE-compliant, register its Git URL, and link the resulting compliance page from project docs.
- Checked 2026-08
- Free
- Moderate
- Estimated domain authority DA ~50
69value Submit to REUSE API (opens in a new tab)
F
FOSSRadar
fossradar.dev
After open-sourcing a maintained component, submit the TOML project file and website through GitHub PR.
- Checked 2026-08
- Free
- Moderate
- India
67value Submit to FOSSRadar (opens in a new tab)
O
OPA Ecosystem
openpolicyagent.org
Build a functional OPA/Rego privacy-policy integration or developer tool, document it, then add its ecosystem entry and logo through the official docs repository.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~60
67value Submit to OPA Ecosystem (opens in a new tab)
F
FilePuma
filepuma.com
Submit only after your tool releases a signed Windows desktop utility.
- Path checked, conditions apply
- Free
- Moderate
- Estimated domain authority DA ~60
65value Submit to FilePuma (opens in a new tab)
O
ODI Open Data Certificates
certificates.theodi.org
Publish a machine-readable privacy, accessibility, or scam-pattern dataset or API and complete its evidence-based public certificate.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~55
65value Submit to ODI Open Data Certificates (opens in a new tab)
N
Nexus Spring of Code
nsoc.in
Register as a maintainer and submit your real open-source project with contributor-ready issues.
- Checked 2026-08
- Free
- Moderate
63value Submit to Nexus Spring of Code (opens in a new tab)
A
APIs.guru OpenAPI Directory
apis.guru
When your tool exposes a stable public API, host an official OpenAPI definition at a permanent URL and submit it with accurate ownership, category, logo, and metadata.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~50
60value Submit to APIs.guru OpenAPI Directory (opens in a new tab)
R
ReactJS Example
reactjsexample.com
Submit a reusable open-source React component extracted from your tool with repository, demo, setup docs and screenshots.
- Checked 2026-08
- Dofollow
- Free
- Involved
- Estimated domain authority DA ~50
60value Submit to ReactJS Example (opens in a new tab)
A
APIList.fun
apilist.fun
Recommend your official API with its documentation URL, concise Markdown description, category, and technical details.
- Checked 2026-08
- Free
- Involved
- Estimated domain authority DA ~45
58value Submit to APIList.fun (opens in a new tab)
S
Swagger Studio
app.swaggerhub.com
Publish your real OpenAPI definition publicly with an accurate description and external documentation URL.
- Path checked, conditions apply
- Nofollow
- Free + paid tier
- Involved
- Estimated domain authority DA ~75
56value Submit to Swagger Studio (opens in a new tab)
L
LinuxLinks
linuxlinks.com
Submit your maintained desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.
- Not yet checked by us
- Dofollow
- Free
- Involved
- Estimated domain authority DA ~60
52value Submit to LinuxLinks (opens in a new tab)
P
PublicAPIs.io
publicapis.io
List your legitimate documented API in the relevant developer category using the normal or Pro review queue.
- Checked 2026-08
- Free + paid tier
- Involved
- Estimated domain authority DA ~40
51value Submit to PublicAPIs.io (opens in a new tab)

Common questions

Which API directories and integration catalogs are worth doing first?

By value score (authority, ease, cost and how recently we checked the path): New Relic Instant Observability (83), StackStorm Exchange (81), JS.ORG (80). The list below starts with them.

How many API directories and integration catalogs give a dofollow link?

3 of the 32 are recorded as giving a followed link on a normal listing. The rest are nofollow, mixed or not yet recorded, so check the live link after you are listed.

What authority do API directories and integration catalogs have?

The median estimated DA of the 30 rated sites here is 60. Estimates are rounded to 5 and have no named provider, so use them to compare, not as a Google metric.

Related categories

Dofollow backlink sites43 sitesPlaces where a normal listing or post usually carries a followed link.

Backlink lists

Dofollow backlink sites43
High DA backlink sites767
Free backlink sites you can finish today306
Free directory submission sites527
Where to launch a web experiment, browser game or side project55
Where to launch and list a new SaaS product or online tool41
Story and poetry sites for author backlinks25
Podcast directories to submit your show to40
Backlink sites for Indian startups and businesses63

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