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ecosyste.ms

Free plan APIWeb

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Plans

PlanBilled and limitsPrice
FreeFree · 300 requests per hour · common or polite pools · standard priority · CC BY-SA 4.0 · community support · no SLA · no dashboard accessFree
Scale$1000 per month · 5,000 requests per hour · API key · high priority · CC BY-SA 4.0 · priority support · commercial SLA · dashboard included$1,000 a month
Develop$200 per month · 1,000 requests per hour · API key · standard priority · CC BY-SA 4.0 · community support · standard SLA · dashboard included$200 a month

As ecosyste.ms lists them, read 13 Nov 2026. The maker's own page has the final word.

Facts from ecosyste.ms's own pages

API access limits
Anonymous users can access services; identifying with a user agent or API key gives a higher rate limit. · docs.ecosyste.ms, 13 Nov 2026
API request pools
The common pool may have less consistent response times, especially during peak periods, because polite requests receive priority. · ecosyste.ms, 13 Nov 2026
API specification
The APIs follow OpenAPI 3.0.1 and provide machine-readable specifications and interactive documentation. · ecosyste.ms, 13 Nov 2026
Commercial services
Commercial customers can request data exports, custom access, and direct support; academic institutions and charitable organisations may request discounted access. · home.ecosyste.ms, 13 Nov 2026
Dependency tools
The Dependency Parser resolves a repository's full dependency tree, while the Dependency Resolver resolves a package's full dependency tree. · ecosyste.ms, 13 Nov 2026
Intended users
The maker describes its audience as developers, researchers, and policymakers. · ecosyste.ms, 13 Nov 2026
Licensing
The documentation states that the code is licensed under AGPL and the data under Creative Commons Attribution Sharealike; commercial licenses with less restrictive terms are available on request. · docs.ecosyste.ms, 13 Nov 2026
Maker and hosting
ecosyste.ms is a non-profit initiative hosted by Open Source Collective. · ecosyste.ms, 13 Nov 2026
Other tools
Digest checks package or repository integrity, Archives inspects contents, Diff compares contents, and Summary produces project overviews. · ecosyste.ms, 13 Nov 2026
Package and repository data
Its package dataset covers 16.6 million packages across 117 sources, and its repository dataset covers 357 million repositories across 2.04k sources. · ecosyste.ms, 13 Nov 2026
Purpose
ecosyste.ms provides free services and tools to help developers, researchers, and policymakers identify, secure, and sustain open source software. · ecosyste.ms, 13 Nov 2026
SBOM and licensing
The SBOM Parser parses and converts between SBOM file formats, and the License Parser extracts license metadata from packages or repositories. · ecosyste.ms, 13 Nov 2026
Security advisories
The advisories dataset contains metadata for 39.1k security advisories across 12 languages. · ecosyste.ms, 13 Nov 2026

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