Feature

Mutual TLS

Certificate-based client authentication at the transport layer.

5 providers 5 APIs 5 declared variants

The API authenticates clients with X.509 certificates over mTLS, often alongside signed requests. Standard in open banking, FAPI, and other high-assurance environments.

5 API providers on the APIs.io network offer mutual tls. The highest-rated are Trulioo, Amazon Private CA, Temporal, AWS App Mesh, MongoDB.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 3 Solid coverage with minor gaps
TruliooTrulioo is a Vancouver-based global identity verification platform that operates GlobalGateway, a single-AP...1 API56.1Amazon Private CAAWS Private Certificate Authority (AWS Private CA) is a highly available, fully managed private CA service ...1 API55.9TemporalTemporal is an open-source durable execution platform for building reliable long-running distributed workfl...1 API54.5
Developing 2 Usable, with meaningful gaps to close
AWS App MeshAWS App Mesh is a service mesh based on the Envoy proxy that provides application-level networking to make ...1 API52.9MongoDBMongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL data...1 API46.1

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Authentication via Basic, OAuth2 client-credential, HMAC, and Mutual TLSLDAP, X.509, and AWS IAM authenticationX.509 Certificate IssuancemTLS AuthenticationmTLS Encryption

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  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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curl "https://apis.io/api/v1/search?q=mutual-tls&limit=10"
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curl "https://apis.io/api/v1/tags/mutual-tls"

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