Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
HumanLayer Approvals, escalations, and human review steps agents can block on, over an API and SDK	human-in-the-loop+3	—	—	api-key, Other	4/5
Amazon Mechanical Turk Crowdsourced human tasks — HITs, qualifications, and assignments — over the AWS API	crowdsourcing+3	—	—	api-key, Other	3/5
Prolific Research participant recruitment with a documented REST API for creating studies and paying out OpenAPIllms.txt	participants+3	OpenAPI+1	—	api-key, Other	3/5