Providers using this tag (13)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 2 Complete, well-documented, and agent-ready
Strong 1 Solid coverage with minor gaps
Developing 5 Usable, with meaningful gaps to close
Virtual PeakerVirtual Peaker is a Louisville, Kentucky software company selling grid-edge DERMS and virtual power plant s...LetsGetCheckedLetsGetChecked (operating as LetsGetChecked powered by FuzeHealth) is an Irish-American virtual care compan...Origami RiskOrigami Risk is a Chicago-headquartered risk, safety and insurance SaaS company founded in 2009 that began ...Fifth Third BancorpFifth Third Bancorp is a diversified super-regional financial services company providing commercial banking..._done_done is an agent-native catalog of 26 single-purpose utility REST APIs — network and DNS lookups, domain i...
Thin 3 Limited public surface area
EasyPostEasyPost is a multi-carrier shipping API platform for the United States and international markets. It expos...ExpoExpo is a React Native development platform providing cloud infrastructure for building, submitting, updati...VeriffVeriff is an AI-driven identity verification platform offering document, biometric, age, and proof-of-addre...
APIs with this tag (12)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Exemplar 1 Complete, well-documented, and agent-ready
Strong 1 Solid coverage with minor gaps
Developing 5 Usable, with meaningful gaps to close
Gravity Connect API (Virtual Peaker)The VPP half of the Gravity Connect specification — the publishing endpoints Virtual Peaker hosts so an int...LetsGetChecked API Notifications (Webhooks)Event-driven webhook notifications delivered by POST to client-supplied endpoints whenever an order, result...Origami Risk Authentication APIToken issuance and session verification for the Origami Risk platform APIs. Two documented token formats — ...Newline Auth APIAuthentication for the Newline by Fifth Third platform. A client exchanges a refresh token for an access to...Hashing, HMAC & Checksum SuiteCompute cryptographic hashes, HMAC signatures, and checksums — and verify webhook signatures with constant-...
Thin 3 Limited public surface area
EasyPost Webhooks APIAsynchronous Event delivery surface. EasyPost POSTs Event objects to subscriber URLs whenever asynchronous ...EAS Webhooks APIEvent notification system that delivers HTTP POST payloads to configured endpoints when EAS Build or EAS Su...Veriff Webhook DeliveryServer-to-server delivery of decision and event notifications. Veriff signs each payload via the customer's...
Score breakdown
Frequency
30.3
log-scaled weighted occurrences
Breadth
0.4
spread across providers
Quality lift
54.5
mean composite of providers using it
Cohesion
1.0
strength of nearest seed neighbor
Related tags
Event 9 co-occurrences
Webhook 10 co-occurrences
Payments 5 co-occurrences
Authentication 5 co-occurrences
Where this tag comes from
Api tag12
Provider tag1
Openapi tag1
Openapi op tag1
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for tags
7 MCP tools reach this
find_tagsBrowse and filter every tag in the catalog.get_cohortThis tag as a scored cohort — every provider carrying it, with scores.cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/hmac"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/hmac"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/hmac/stats" \
-H "X-API-Key: $APIS_IO_KEY"
Discovery needs no key. Ratings and market analysis are Pro.