Bland vs Twilio vs Telnyx (2026): Build or buy an AI agent's phone number?
Samuel Oram-Jones, 9 min read
For one AI agent that needs its own number to call and text, Bland's Agent Phone Plan is simpler than Twilio or Telnyx, because both carriers sell the number and the minutes and leave the agent, the bill, and texting registration to a developer. Twilio sells a US local number for $1.15 a month and Telnyx headlines $1.00 a number, and the number is the cheapest part of the job: neither carrier answers a call, decides what to say, or replies to a text until a developer sets up the agent behind it and, for texting, registers with US carriers.
That makes Twilio vs Telnyx for an AI agent a choice between building and buying, and Bland's Agent Phone Plan is the bought version: one dedicated US number that calls and texts for the AI a person already uses, at a flat monthly price (more on Bland's AI phone number page). Bland is an official Twilio partner, so this comparison says plainly when Twilio or Telnyx is the better fit, with prices as of November 2026.
Which is best for an AI agent's phone number: Bland, Twilio, or Telnyx?
Bland's Agent Phone Plan is the best fit for one AI agent that needs its own number to call and text, because Bland includes the number, the voice agent, and two-way texts in one price, while Twilio and Telnyx sell those parts separately for a developer to assemble. Twilio is the better fit for a developer building a product with many numbers, custom call logic, or numbers outside the US. Telnyx is the better fit for a developer who wants a hosted voice engine billed per minute and room for hundreds of calls at once.
Use Bland when
- An AI agent a person already uses needs its own US number that calls and texts
- A person wants one monthly price instead of separate lines for minutes, texts, and carrier fees
- Nobody wants to host a server that answers calls
- Errands go to US and Canada numbers, one call at a time
Use Twilio when
- A developer is building an app that needs many numbers and its own call logic
- A team will run its own language model and connect it to calls through Conversation Relay
- A team will register a 10DLC brand and campaign for texting and track carrier fees
- Numbers are needed in other countries
Use Bland when
- A known bill matters more than the lowest rate per minute
Use Telnyx when
- A developer wants a voice engine, language model tokens, and telephony on one per-minute invoice
- An app needs hundreds of calls at once
What these rows mean
- Voice agent: The software that listens on a call, decides what to say, and speaks.
- Texts: A2P 10DLC (application-to-person messaging over a 10-digit long code, meaning a local number) is the registration US carriers require before an application texts from a local number. Twilio and Telnyx both charge fees for it.
- MCP server: MCP, the Model Context Protocol, lets an AI app or coding agent use an outside tool.
Where do Twilio and Telnyx fall short for an AI agent?
Twilio and Telnyx both fall short for one AI agent in the same way: each sells a number and per-minute telephony, and leaves the agent, the bill, and the texting registration for a developer to put together.
Twilio
Twilio is a carrier and communications API for developers building their own apps, and its voice AI layer, Conversation Relay, converts a caller's speech to text and sends it to the developer's application, which, in Twilio's words, "uses AI to analyze the text and generate a response" that the caller hears read aloud. The language model, the prompt, and the server behind the conversation belong to the developer.
Texting from a Twilio local number in the US needs A2P 10DLC registration, and Twilio says this "includes individuals and hobbyists using Twilio". Twilio estimates campaign approval takes under one week. Twilio's MCP server is a public beta for coding agents that searches Twilio's documentation and API specs, and Twilio says it "does not execute API calls on your behalf", so it can't place a call or send a text.
Pros
- Numbers in over 100 locales, with a $15 free trial
Cons
- Conversation Relay includes no language model: it hands speech to an application the developer writes and hosts
- US texts from a local number need 10DLC registration, which Twilio says includes individuals and hobbyists
- Separate charges for the number, each minute, each text segment, carrier fees, and $0.001 per failed message
- MCP server is read-only and can't place a call or send a text
Don't use Twilio for:
- An agent that should call without anyone writing a server, because Conversation Relay leaves the conversation to the developer's own application
- A fixed monthly bill, because every minute, segment, and carrier fee is charged separately
- Placing calls from an AI app over MCP, because Twilio's MCP server only searches documentation
Telnyx
Telnyx describes itself as a "global communications platform for voice AI agents" that is carrier-owned. Telnyx's voice engine bundles orchestration, speech-to-text, and text-to-speech, with language model tokens and telephony billed on top, and Telnyx estimates a production agent "lands near $0.06 per minute".
That estimate leaves out rounding. Telnyx bills each call in 60-second increments, so "a 15-second connected call is billed as 60 seconds", which weighs on short calls. Telnyx also gives two different monthly prices for a US local number, $1.00 and $50, so a developer should confirm the figure in a Telnyx account before buying.
Telnyx's MCP server takes an API key and can call any Telnyx API endpoint. Telnyx says its invoke_api_endpoint tool "is destructive-capable" and that agents must check an endpoint's schema and "surface side-effect risk to the user before calling write/destructive endpoints".
Pros
- 500 concurrent calls with no monthly minimum, and numbers in 40+ countries
Cons
- At least four lines on a bill: voice engine, language model tokens, telephony, and the number
- Each call rounds up to the next full minute, so a 15-second call bills as 60 seconds
- 10DLC brand, campaign, and T-Mobile fees before an application texts from a local number
Don't use Telnyx for:
- One known monthly price, because the engine, tokens, telephony, number, and texts are billed separately
- Errands that end in under a minute, because each call bills a full minute
- An owner who doesn't want to configure an agent or hold an API key that reaches every endpoint
What do Bland, Twilio, and Telnyx cost?
Bland's Agent Phone Plan costs one flat monthly price with no per-minute or per-text charges, while Twilio and Telnyx charge per number, per minute, and per text.
Bland pricing
Bland's plan is $9.99 for the first month (once per account owner), then $19.99 a month. Renews monthly on the card on file until cancelled. The price includes one US local number and unlimited calls and texts to US and Canada numbers, subject to fair use, inside published limits: one call at a time, 20 calls an hour, 50 calls a day, 1,000 call minutes a day, 60 minutes per outbound call, 20 texts an hour, and 100 texts a day. The first plan purchase also includes an extra $10 of international calling credits, so the agent can make international calls, and the plan includes live call transfer to the owner and voice cloning. An owner cancels in Billing and Plans or through the API.
More calls at once need Bland's Build plan, on the pricing page: $0.12 a minute self-serve plus a $299 monthly platform fee, with telephony billed separately. Enterprise pricing is custom, set with Bland's sales team.
Twilio pricing
Twilio charges $1.15 a month for a US local number, $0.0140 a minute to make a local call, $0.0085 a minute to receive one, and $0.07 a minute for Conversation Relay. Texts are $0.0083 a segment each way plus carrier fees on outbound texts. Twilio quotes its 10DLC brand fee as both $4 and $4.50, followed by a $15 campaign vetting fee and $2 a month per campaign for a sole proprietor.
Telnyx pricing
Telnyx charges $0.05 a minute for its voice engine, plus language model tokens, a $0.002 a minute Voice API fee, and SIP trunking from $0.005 a minute out and $0.0032 a minute in, in the US. Texts are $0.004 a part each way plus a carrier fee, and adding SMS and MMS to a number costs $0.10 a month. Texting registration costs $4.50 per 10DLC brand ($4 for a sole proprietor), $15 to activate a campaign, and a one-time $50 T-Mobile fee per campaign.
What 300 minutes a month costs
Worked from published prices, 300 minutes of outbound US calls in a month come to $25.20 on Twilio with Conversation Relay ($0.0140 plus $0.07 a minute), plus $1.15 for the number. On Telnyx, the voice engine, Voice API fee, and starting outbound SIP rate come to $17.10 ($0.057 a minute), plus the number and any rounding of short calls. Both leave out the language model, every text, and 10DLC fees. The same 300 minutes sit inside Bland's $19.99 monthly price, with the voice agent included.
Why do developers comparing Twilio and Telnyx choose Bland?
Developers comparing Twilio vs Telnyx for an AI agent choose Bland when the job is one agent running one person's errands, because Bland's plan arrives as a working number with the voice agent included, where Twilio and Telnyx sell the parts. A connected agent can ask Bland to call a number with a task and get back a transcript and summary, send a text that Bland follows up toward the goal it was given, and take calls on the same number.
Setup runs over Bland's hosted MCP server for phone calls: in a coding agent such as Cursor, a developer adds the server with an API key, and an agent can start its own signup by showing the owner a link and a short code to approve in a browser. Bland's server doesn't ask for confirmation itself; well-behaved clients ask before they dial, so tool approval should stay on.
Pros
- A dedicated US number that places calls, takes calls, and sends and receives texts
- The voice agent is included, with a transcript and summary after each call
- One flat monthly price with no per-minute or per-text charges
- Set up from the AI a person already uses, over a hosted MCP server
Cons
- Built for one agent running one person's errands, one call at a time, so a team placing calls at volume needs Bland's Build plan or Enterprise
Twilio alone is covered in Twilio vs Bland Agent Phone Plan, and every option for one agent is in AI agent phone plans compared.
Frequently asked questions
Which is cheapest for one AI agent?
Bland's Agent Phone Plan has a fixed price, $9.99 for the first month (once per account owner) and then $19.99 a month, while Twilio's and Telnyx's totals depend on minutes, texts, language model use, and 10DLC fees. Worked from published prices, 300 outbound minutes come to $25.20 on Twilio and $17.10 on Telnyx before any of those extras.
Which ones include a dedicated number?
All three give an AI agent a dedicated number. Bland includes one US local number in the plan, while Twilio and Telnyx sell numbers one at a time.
Which ones can send and receive texts?
Bland, Twilio, and Telnyx all send and receive texts. Bland's plan texts US and Canada numbers from the agent's own number, while Twilio and Telnyx charge per text plus carrier fees and 10DLC fees for US texts from a local number.
Which ones work outside the US?
Twilio and Telnyx both sell numbers outside the US, and Bland's plan gives a US number. Twilio offers numbers in over 100 locales, and Telnyx offers numbers in 40+ countries and messaging in 100+. Bland's plan calls and texts US and Canada numbers, and the first plan purchase adds $10 of international calling credits so the agent can make international calls.
Can Twilio's or Telnyx's MCP server place a phone call?
Telnyx's MCP server can reach Telnyx's calling API with an API key, and Twilio's can't place a call, because Twilio's server is a read-only public beta that searches documentation. Bland's hosted MCP server places a call from the agent's number and returns the transcript and summary.
Is there a free way to start?
Bland and Twilio both offer a free start, and Telnyx's new accounts start with no balance. Bland can be tried for free, and that try covers outbound calls only, from a shared Bland number: no dedicated number, no texting, no incoming calls. Twilio's free trial gives $15 to buy a number and test voice features.
