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Sponsor a relevant source

Reach people exploring environmental and engineering sources through clearly disclosed placements.

First 5 sponsors: 50% off for 6 months, automatically applied while available.

Verified

£29 one-off

Author verification, badge, review within 48 hours and re-score on request.

Featured

£99 /month

Sponsored placement in one category; at most three active slots per category.

Category Partner

£249 /month

Top placement in up to three categories and a quarterly feature.

Disclosure policy

Every paid placement is labelled Sponsored. Payment never changes quality scores or organic ranking. Format, region and minimum-score filters apply. Payment does not imply verification or a working MCP endpoint.

Aegaea and hydrometric.io are labelled Sponsored · owned by TerraMCP's operator. Contact Aegaea to discuss category slots, keywords and a suitable tier.

Prices exclude VAT. If a sponsored slot receives fewer than 50 outbound clicks in a UTC calendar month, its next month is free. Credits are reviewed and applied by the operator.

Categories

Existing listing slugs are automatically approved. New listings await editorial review and must enter the catalog before placement. Billing begins at checkout, including while review is pending. Logos and contact details are private moderation records; logos are not displayed automatically. Manage cancellation through Stripe's subscription emails.

Self-serve checkout is coming online. Email Chris to arrange your sponsorship now. Draft your listing and tier above to include them in your email.

Email Chris to sponsor