Can an agent send a text message with Vonage Messages API?
Who does each step
Whether the agent handles it alone or a person has to step in.
- 01
Discover
MachineThe vendor's machine-readable docs show the agent where and how to call this job.
- 02
Access
Workaround · setupYou give the agent a key or token.
- 03
Onboard
Workaround · setupYou sign up or register a client for the agent.
- 04
Pay
Workaround · setupYou add a payment card at the vendor's checkout.
- 05
Confirm
MachineThe response or specification defines errors the agent can distinguish from success.
- 06
Sustain
Workaround · setupYou replace or revoke the agent's access when it needs to change.
- Access: handing over a key or token.
- Onboard: signing up or registering a client for the agent.
- Pay: adding a payment card.
- Sustain: renewing, replacing or revoking its access.
To remove these handoffs: support OAuth client registration so the agent can register its own client and ask for consent; provide an agent registration route, such as auth.md, a sign-up API or OAuth client registration; support payment in the request, such as x402 or MPP, so setup does not require a person to add a card; provide key management or OAuth refresh and revocation so the agent can maintain its own access.
Agent surfaces
The probe
Each request it sent and what came back; the descriptors it read, counted, with what they named.
Discover29 descriptor reads2 facts
- Found
- For agentsdeveloper.vonage.com/llms.txtFor agentsapi.nexmo.com
- From
- developer.vonage.com/llms.txt
- This endpoint
- api.nexmo.com/v1 is named by a document written for agents
Job requestPOST api.nexmo.com/v1/messages40145 ms
- Request
- POST https://api.nexmo.com/v1/messages
- Response
- 401 · application/problem+json · 74 bytes
- Body
- sha256:4516ef1ad89c454b372f3af97da5645e765fb0e62392ed5fda31faae8bfc2fae
- Exchange
- sha256:ab4fd4db31628091b57ae2a6ff46dc826965e0c0f57fc3de4600396454b744ac
Resource metadataGET api.nexmo.com/.well-known/oauth-protected-resource/v1/messages40439 ms
- Request
- GET https://api.nexmo.com/.well-known/oauth-protected-resource/v1/messages
- Response
- 404 · text/html · 132 bytes
- Body
- sha256:e9c64f6d219762bb4a198349b8b99d4573b3e939b2dba019734c3a3b3165acae
- Exchange
- sha256:0ae947b73b58c4412a8ed5d175aa34728bf36780638e8a1007ee9ddd9cbd95d2
Resource metadataGET api.nexmo.com/.well-known/oauth-protected-resource40441 ms
- Request
- GET https://api.nexmo.com/.well-known/oauth-protected-resource
- Response
- 404 · text/html · 132 bytes
- Body
- sha256:e9c64f6d219762bb4a198349b8b99d4573b3e939b2dba019734c3a3b3165acae
- Exchange
- sha256:99da78c433bcccd76dce8dbc8d2813cc137bfedd6e3abc0a5df7c172121cb1fb
Declared pageGET dashboard.vonage.com302146 ms
- Request
- GET https://dashboard.vonage.com
- Response
- 302 · application/octet-stream · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:1385003e6b6f27b895e2963beba2a8f13a89f97efc4cc9878b95696e334de8b5
Declared pageGET dashboard.vonage.com302118 ms
- Request
- GET https://dashboard.vonage.com
- Response
- 302 · application/octet-stream · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:ead7571c138424781a37ad2e192e440fd9430ea9f4fe79053140971e635eda7d
Vonage on the startup-offers board
- Up to $75,000 in creditsVonage for Startups
The grade’s badge
One image that keeps itself current, linking here.
[](https://sourcey.com/c/vonage/agent-readiness/vonage-messages-api/sms-send)Improve the report
Correct it, probe it again, or improve the path.
- Profile
- arp_01m4t63y7ke9ftna12hn58qx4t
- Projection
- sha256:23f2e4886715995ba2b4781c8b28e2aaddd47a53367f66fabd0331df8cf72612
- Policy
- kind-2026-10-12.2 · sha256:b612172aad277b54461de84e006815126f2df566563954b02f4432a39cad89ac
A report or a reassessment request names this profile, its revision and its projection. How report cards are assessed →View the exact declaration