other · Listed · Found · 8 endpoints · Gateway-eligible
Happenstance API
Happenstance API
API for Happenstance AI
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
ROUTE
Route when you need other at published x402 prices.
confidence
78%
source
signal
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=happenstance-api-uhei
When to call
- Need other via x402 and want Cleared-indexed payTo with a live scorecard.
- API for Happenstance AI
Risks
- Found — not operator-owned; claim status unknown.
- No Cleared settlement receipt on file yet.
- No Gateway traffic yet — market share unproven.
Price posture
8 endpoints — confirm price on manifest before pay.
Category · Gateway
other · no Gateway routes yet — early / unproven on Cleared market share.
Endpoint hints
GET /healthGET /health at Metered.
POST /v1/validate-keyPOST /v1/validate-key at Metered.
POST /v1/searchSearch for people within specified groups and/or within a user's connections. Use @mentions in your search query to filter results to a specific person's conne
GET /v1/search/{search_id}Get search results. Returns the status and results of a search request. Optionally provide a page_id to retrieve a specific page of results.
POST /v1/search/{search_id}/find-moreFind more results for a search. Creates a new search that excludes all people from previous results in the search chain. Uses the same query and settings as th
POST /v1/researchStart a new person research request. Include as many details as possible about the person in the description field (full name, company, title, location, social
GET /v1/research/{research_id}Get the status of a research request.
GET /v1/users/meGet the current user's profile.
Evidence (Cleared)
- → Intake verified · Gateway-eligible
- → Trust 70/100 · pass · tier listed
- → Protocol mpp
- → Manifest reachable · schema valid
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
Health Check
MeteredGET https://api.happenstance.ai/healthValidate Key
Not usedMeteredPOST https://api.happenstance.ai/v1/validate-keyCreate Search
Not usedMeteredPOST https://api.happenstance.ai/v1/searchSearch for people within specified groups and/or within a user's connections. Use @mentions in your search query to filter results to a specific person's connections (e.g., "engineers @Jane Smith knows"). Use the /v1/groups/{group_id} endpoint to look up member names for @mentions. Requires sufficient credits. Returns 402 Payment Required if not enough credits. Returns 429 Too Many Requests if you have 10 or more search requests currently running.
Get Search
MeteredGET https://api.happenstance.ai/v1/search/{search_id}Get search results. Returns the status and results of a search request. Optionally provide a page_id to retrieve a specific page of results.
Find More Search
MeteredPOST https://api.happenstance.ai/v1/search/{search_id}/find-moreFind more results for a search. Creates a new search that excludes all people from previous results in the search chain. Uses the same query and settings as the original search. Can only be called on the parent search (searches without a parent_search_id). Requires sufficient credits. Returns 402 Payment Required if not enough credits. Returns 429 Too Many Requests if you have 10 or more search requests currently running.
Create Research
MeteredPOST https://api.happenstance.ai/v1/researchStart a new person research request. Include as many details as possible about the person in the description field (full name, company, title, location, social media handles, etc.) for best results. Requires sufficient credits. Returns 402 Payment Required if not enough credits. Returns 429 Too Many Requests if you have 10 or more research requests currently running.
Get Research
MeteredGET https://api.happenstance.ai/v1/research/{research_id}Get the status of a research request.
Get Current User Profile
MeteredGET https://api.happenstance.ai/v1/users/meGet the current user's profile.
Checks
reachable
valid
2026-08-25T02:00:59.159Z
No settlement evidence found in chain signals.
Gateway routing
Verified (or paid Cleared) — Gateway may route this origin before pay.
Claim this listing to upgrade to Cleared attestation.
Claim listing